X-Git-Url: http://nitlanguage.org

diff --git a/c_src/standard__string.sep.1.c b/c_src/standard__string.sep.1.c
index f38e35e..544ca3d 100644
--- a/c_src/standard__string.sep.1.c
+++ b/c_src/standard__string.sep.1.c
@@ -1,75 +1,146 @@
 #include "standard__string.sep.0.h"
+/* method string#Text#length for (self: Text): Int */
+long standard___standard__Text___length(val* self) {
+long var /* : Int */;
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "length", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 44);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
+/* method string#Text#substring for (self: Text, Int, Int): Text */
+val* standard___standard__Text___substring(val* self, long p0, long p1) {
+val* var /* : Text */;
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "substring", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 50);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
+/* method string#Text#substrings for (self: Text): Iterator[FlatText] */
+val* standard___standard__Text___substrings(val* self) {
+val* var /* : Iterator[FlatText] */;
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "substrings", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 62);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
 /* method string#Text#is_empty for (self: Text): Bool */
 short int standard___standard__Text___is_empty(val* self) {
 short int var /* : Bool */;
 long var1 /* : Int */;
-long var2 /* : Int */;
-short int var3 /* : Bool */;
-short int var5 /* : Bool */;
+short int var2 /* : Bool */;
+short int var4 /* : Bool */;
 {
-var1 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var2 = 0;
 {
-{ /* Inline kernel#Int#== (var1,var2) on <var1:Int> */
-var5 = var1 == var2;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+{ /* Inline kernel#Int#== (var1,0l) on <var1:Int> */
+var4 = var1 == 0l;
+var2 = var4;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
+}
+}
+var = var2;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Text#empty for (self: Text): Text */
+val* standard___standard__Text___empty(val* self) {
+val* var /* : Text */;
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "empty", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 71);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
+/* method string#Text#[] for (self: Text, Int): Char */
+uint32_t standard___standard__Text____91d_93d(val* self, long p0) {
+uint32_t var /* : Char */;
+long var_index /* var index: Int */;
+val* var1 /* : SequenceRead[Char] */;
+val* var2 /* : nullable Object */;
+uint32_t var3 /* : Char */;
+var_index = p0;
+{
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
+{
+var2 = ((val*(*)(val* self, long p0))((((long)var1&3)?class_info[((long)var1&3)]:var1->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var1, var_index); /* [] on <var1:SequenceRead[Char]>*/
 }
+var3 = (uint32_t)((long)(var2)>>2);
 var = var3;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
 /* method string#Text#last for (self: Text): Char */
-char standard___standard__Text___last(val* self) {
-char var /* : Char */;
+uint32_t standard___standard__Text___last(val* self) {
+uint32_t var /* : Char */;
 val* var1 /* : SequenceRead[Char] */;
 long var2 /* : Int */;
 long var3 /* : Int */;
-long var4 /* : Int */;
-short int var6 /* : Bool */;
+short int var5 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var7 /* : Int */;
-val* var8 /* : nullable Object */;
-char var9 /* : Char */;
+long var6 /* : Int */;
+val* var7 /* : nullable Object */;
+uint32_t var8 /* : Char */;
 {
-var1 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var2 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var2 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var3 = 1;
 {
-{ /* Inline kernel#Int#- (var2,var3) on <var2:Int> */
-/* Covariant cast for argument 0 (i) <var3:Int> isa OTHER */
-/* <var3:Int> isa OTHER */
-var6 = 1; /* easy <var3:Int> isa OTHER*/
-if (unlikely(!var6)) {
+{ /* Inline kernel#Int#- (var2,1l) on <var2:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var5 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var5)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var7 = var2 - var3;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+var6 = var2 - 1l;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
 }
 {
-var8 = ((val* (*)(val* self, long p0))(var1->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var1, var4) /* [] on <var1:SequenceRead[Char]>*/;
+var7 = ((val*(*)(val* self, long p0))((((long)var1&3)?class_info[((long)var1&3)]:var1->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var1, var3); /* [] on <var1:SequenceRead[Char]>*/
 }
-var9 = ((struct instance_standard__Char*)var8)->value; /* autounbox from nullable Object to Char */;
-var = var9;
+var8 = (uint32_t)((long)(var7)>>2);
+var = var8;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
+/* method string#Text#to_cstring for (self: Text): NativeString */
+char* standard___standard__Text___to_cstring(val* self) {
+char* var /* : NativeString */;
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "to_cstring", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 129);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
 /* method string#Text#substring_from for (self: Text, Int): Text */
 val* standard___standard__Text___substring_from(val* self, long p0) {
 val* var /* : Text */;
@@ -82,25 +153,23 @@ int idtype;
 const char* var_class_name;
 short int var5 /* : Bool */;
 val* var6 /* : Text */;
-long var7 /* : Int */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
-const char* var_class_name13;
-short int var14 /* : Bool */;
+short int var7 /* : Bool */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+const char* var_class_name12;
+short int var13 /* : Bool */;
+long var14 /* : Int */;
 long var15 /* : Int */;
-long var16 /* : Int */;
-long var17 /* : Int */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-const char* var_class_name22;
-long var23 /* : Int */;
-val* var24 /* : Text */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+const char* var_class_name20;
+long var21 /* : Int */;
+val* var22 /* : Text */;
 var_from = p0;
 {
-var1 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 {
 { /* Inline kernel#Int#>= (var_from,var1) on <var_from:Int> */
@@ -110,8 +179,8 @@ var4 = 1; /* easy <var1:Int> isa OTHER*/
 if (unlikely(!var4)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
 var5 = var_from >= var1;
 var2 = var5;
@@ -121,59 +190,57 @@ RET_LABEL3:(void)0;
 }
 if (var2){
 {
-var6 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__empty]))(self) /* empty on <self:Text>*/;
+var6 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__empty]))(self); /* empty on <self:Text>*/
 }
 var = var6;
 goto RET_LABEL;
 } else {
 }
-var7 = 0;
 {
-{ /* Inline kernel#Int#< (var_from,var7) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var7:Int> isa OTHER */
-/* <var7:Int> isa OTHER */
-var10 = 1; /* easy <var7:Int> isa OTHER*/
-if (unlikely(!var10)) {
-var_class_name13 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_from,0l) on <var_from:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var9 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var9)) {
+var_class_name12 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name12);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var14 = var_from < var7;
-var8 = var14;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var13 = var_from < 0l;
+var7 = var13;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
 }
-if (var8){
-var15 = 0;
-var_from = var15;
+if (var7){
+var_from = 0l;
 } else {
 }
 {
-var16 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var14 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var16,var_from) on <var16:Int> */
+{ /* Inline kernel#Int#- (var14,var_from) on <var14:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var19 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var19)) {
-var_class_name22 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name22);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+var17 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var17)) {
+var_class_name20 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var23 = var16 - var_from;
-var17 = var23;
-goto RET_LABEL18;
-RET_LABEL18:(void)0;
+var21 = var14 - var_from;
+var15 = var21;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
 }
 }
 {
-var24 = ((val* (*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, var_from, var17) /* substring on <self:Text>*/;
+var22 = ((val*(*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, var_from, var15); /* substring on <self:Text>*/
 }
-var = var24;
+var = var22;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -186,183 +253,173 @@ long var_pos /* var pos: Int */;
 short int var1 /* : Bool */;
 short int var2 /* : Bool */;
 short int var3 /* : Bool */;
-long var4 /* : Int */;
 short int var5 /* : Bool */;
-short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var8 /* : Bool */;
+short int var6 /* : Bool */;
 short int var_ /* var : Bool */;
-long var9 /* : Int */;
-long var10 /* : Int */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-const char* var_class_name15;
-long var16 /* : Int */;
-long var17 /* : Int */;
+long var7 /* : Int */;
+long var8 /* : Int */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+const char* var_class_name13;
+long var14 /* : Int */;
+long var15 /* : Int */;
+short int var16 /* : Bool */;
 short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-const char* var_class_name23;
-short int var24 /* : Bool */;
-short int var25 /* : Bool */;
-val* var26 /* : SequenceRead[Char] */;
-val* var27 /* : IndexedIterator[nullable Object] */;
+int cltype19;
+int idtype20;
+const char* var_class_name21;
+short int var22 /* : Bool */;
+val* var23 /* : SequenceRead[Char] */;
+val* var24 /* : IndexedIterator[nullable Object] */;
 val* var_myiter /* var myiter: IndexedIterator[Char] */;
-val* var28 /* : SequenceRead[Char] */;
-val* var29 /* : Iterator[nullable Object] */;
+val* var25 /* : SequenceRead[Char] */;
+val* var26 /* : Iterator[nullable Object] */;
 val* var_itsiter /* var itsiter: IndexedIterator[Char] */;
+short int var27 /* : Bool */;
+short int var28 /* : Bool */;
+short int var_29 /* var : Bool */;
 short int var30 /* : Bool */;
-short int var31 /* : Bool */;
-short int var_32 /* var : Bool */;
+val* var31 /* : nullable Object */;
+val* var32 /* : nullable Object */;
 short int var33 /* : Bool */;
-val* var34 /* : nullable Object */;
-val* var35 /* : nullable Object */;
+short int var35 /* : Bool */;
 short int var36 /* : Bool */;
-short int var38 /* : Bool */;
-short int var39 /* : Bool */;
-short int var40 /* : Bool */;
-short int var41 /* : Bool */;
-short int var42 /* : Bool */;
-short int var43 /* : Bool */;
+short int var37 /* : Bool */;
 var_str = p0;
 var_pos = p1;
 {
 var1 = standard___standard__Text___is_empty(var_str);
 }
 if (var1){
-var2 = 1;
-var = var2;
+var = 1;
 goto RET_LABEL;
 } else {
 }
-var4 = 0;
 {
-{ /* Inline kernel#Int#< (var_pos,var4) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
-/* <var4:Int> isa OTHER */
-var7 = 1; /* easy <var4:Int> isa OTHER*/
-if (unlikely(!var7)) {
+{ /* Inline kernel#Int#< (var_pos,0l) on <var_pos:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var5 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var5)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var8 = var_pos < var4;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var6 = var_pos < 0l;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
 }
-var_ = var5;
-if (var5){
-var3 = var_;
+var_ = var3;
+if (var3){
+var2 = var_;
 } else {
 {
-var9 = ((long (*)(val* self))(var_str->class->vft[COLOR_standard__string__Text__length]))(var_str) /* length on <var_str:String>*/;
+var7 = ((long(*)(val* self))(var_str->class->vft[COLOR_standard__string__Text__length]))(var_str); /* length on <var_str:String>*/
 }
 {
-{ /* Inline kernel#Int#+ (var_pos,var9) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var9:Int> isa OTHER */
-/* <var9:Int> isa OTHER */
-var12 = 1; /* easy <var9:Int> isa OTHER*/
-if (unlikely(!var12)) {
-var_class_name15 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name15);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_pos,var7) on <var_pos:Int> */
+/* Covariant cast for argument 0 (i) <var7:Int> isa OTHER */
+/* <var7:Int> isa OTHER */
+var10 = 1; /* easy <var7:Int> isa OTHER*/
+if (unlikely(!var10)) {
+var_class_name13 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var16 = var_pos + var9;
-var10 = var16;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+var14 = var_pos + var7;
+var8 = var14;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
 {
-var17 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var15 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#> (var10,var17) on <var10:Int> */
-/* Covariant cast for argument 0 (i) <var17:Int> isa OTHER */
-/* <var17:Int> isa OTHER */
-var20 = 1; /* easy <var17:Int> isa OTHER*/
-if (unlikely(!var20)) {
-var_class_name23 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name23);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
+{ /* Inline kernel#Int#> (var8,var15) on <var8:Int> */
+/* Covariant cast for argument 0 (i) <var15:Int> isa OTHER */
+/* <var15:Int> isa OTHER */
+var18 = 1; /* easy <var15:Int> isa OTHER*/
+if (unlikely(!var18)) {
+var_class_name21 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
 }
-var24 = var10 > var17;
-var18 = var24;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+var22 = var8 > var15;
+var16 = var22;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
 }
 }
-var3 = var18;
+var2 = var16;
 }
-if (var3){
-var25 = 0;
-var = var25;
+if (var2){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
-var26 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var23 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var27 = ((val* (*)(val* self, long p0))(var26->class->vft[COLOR_standard__abstract_collection__SequenceRead__iterator_from]))(var26, var_pos) /* iterator_from on <var26:SequenceRead[Char]>*/;
+var24 = ((val*(*)(val* self, long p0))((((long)var23&3)?class_info[((long)var23&3)]:var23->class)->vft[COLOR_standard__abstract_collection__SequenceRead__iterator_from]))(var23, var_pos); /* iterator_from on <var23:SequenceRead[Char]>*/
 }
-var_myiter = var27;
+var_myiter = var24;
 {
-var28 = ((val* (*)(val* self))(var_str->class->vft[COLOR_standard__string__Text__chars]))(var_str) /* chars on <var_str:String>*/;
+var25 = ((val*(*)(val* self))(var_str->class->vft[COLOR_standard__string__Text__chars]))(var_str); /* chars on <var_str:String>*/
 }
 {
-var29 = ((val* (*)(val* self))(var28->class->vft[COLOR_standard__abstract_collection__Collection__iterator]))(var28) /* iterator on <var28:SequenceRead[Char]>*/;
+var26 = ((val*(*)(val* self))((((long)var25&3)?class_info[((long)var25&3)]:var25->class)->vft[COLOR_standard__abstract_collection__Collection__iterator]))(var25); /* iterator on <var25:SequenceRead[Char]>*/
 }
-var_itsiter = var29;
+var_itsiter = var26;
 for(;;) {
 {
-var31 = ((short int (*)(val* self))(var_myiter->class->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_myiter) /* is_ok on <var_myiter:IndexedIterator[Char]>*/;
+var28 = ((short int(*)(val* self))((((long)var_myiter&3)?class_info[((long)var_myiter&3)]:var_myiter->class)->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_myiter); /* is_ok on <var_myiter:IndexedIterator[Char]>*/
 }
-var_32 = var31;
-if (var31){
+var_29 = var28;
+if (var28){
 {
-var33 = ((short int (*)(val* self))(var_itsiter->class->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_itsiter) /* is_ok on <var_itsiter:IndexedIterator[Char]>*/;
+var30 = ((short int(*)(val* self))((((long)var_itsiter&3)?class_info[((long)var_itsiter&3)]:var_itsiter->class)->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_itsiter); /* is_ok on <var_itsiter:IndexedIterator[Char]>*/
 }
-var30 = var33;
+var27 = var30;
 } else {
-var30 = var_32;
+var27 = var_29;
 }
-if (var30){
+if (var27){
 {
-var34 = ((val* (*)(val* self))(var_myiter->class->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_myiter) /* item on <var_myiter:IndexedIterator[Char]>*/;
+var31 = ((val*(*)(val* self))((((long)var_myiter&3)?class_info[((long)var_myiter&3)]:var_myiter->class)->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_myiter); /* item on <var_myiter:IndexedIterator[Char]>*/
 }
 {
-var35 = ((val* (*)(val* self))(var_itsiter->class->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_itsiter) /* item on <var_itsiter:IndexedIterator[Char]>*/;
+var32 = ((val*(*)(val* self))((((long)var_itsiter&3)?class_info[((long)var_itsiter&3)]:var_itsiter->class)->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_itsiter); /* item on <var_itsiter:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Char#!= (var34,var35) on <var34:nullable Object(Char)> */
-var38 = var34 == var35 || (((struct instance_standard__Char*)var34)->value == ((struct instance_standard__Char*)var35)->value);
-var39 = !var38;
-var36 = var39;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
+{ /* Inline kernel#Char#!= (var31,var32) on <var31:nullable Object(Char)> */
+var35 = var31 == var32;
+var36 = !var35;
+var33 = var36;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
 }
 }
-if (var36){
-var40 = 0;
-var = var40;
+if (var33){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
-((void (*)(val* self))(var_myiter->class->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_myiter) /* next on <var_myiter:IndexedIterator[Char]>*/;
+((void(*)(val* self))((((long)var_myiter&3)?class_info[((long)var_myiter&3)]:var_myiter->class)->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_myiter); /* next on <var_myiter:IndexedIterator[Char]>*/
 }
 {
-((void (*)(val* self))(var_itsiter->class->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_itsiter) /* next on <var_itsiter:IndexedIterator[Char]>*/;
+((void(*)(val* self))((((long)var_itsiter&3)?class_info[((long)var_itsiter&3)]:var_itsiter->class)->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_itsiter); /* next on <var_itsiter:IndexedIterator[Char]>*/
 }
 } else {
 goto BREAK_label;
@@ -370,16 +427,14 @@ goto BREAK_label;
 }
 BREAK_label: (void)0;
 {
-var41 = ((short int (*)(val* self))(var_itsiter->class->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_itsiter) /* is_ok on <var_itsiter:IndexedIterator[Char]>*/;
+var37 = ((short int(*)(val* self))((((long)var_itsiter&3)?class_info[((long)var_itsiter&3)]:var_itsiter->class)->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_itsiter); /* is_ok on <var_itsiter:IndexedIterator[Char]>*/
 }
-if (var41){
-var42 = 0;
-var = var42;
+if (var37){
+var = 0;
 goto RET_LABEL;
 } else {
 }
-var43 = 1;
-var = var43;
+var = 1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -388,14 +443,12 @@ return var;
 short int standard___standard__Text___has_prefix(val* self, val* p0) {
 short int var /* : Bool */;
 val* var_prefix /* var prefix: String */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
+short int var1 /* : Bool */;
 var_prefix = p0;
-var1 = 0;
 {
-var2 = standard___standard__Text___has_substring(self, var_prefix, var1);
+var1 = standard___standard__Text___has_substring(self, var_prefix, 0l);
 }
-var = var2;
+var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -415,10 +468,10 @@ long var6 /* : Int */;
 short int var7 /* : Bool */;
 var_suffix = p0;
 {
-var1 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-var2 = ((long (*)(val* self))(var_suffix->class->vft[COLOR_standard__string__Text__length]))(var_suffix) /* length on <var_suffix:String>*/;
+var2 = ((long(*)(val* self))(var_suffix->class->vft[COLOR_standard__string__Text__length]))(var_suffix); /* length on <var_suffix:String>*/
 }
 {
 { /* Inline kernel#Int#- (var1,var2) on <var1:Int> */
@@ -428,8 +481,8 @@ var5 = 1; /* easy <var2:Int> isa OTHER*/
 if (unlikely(!var5)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
 var6 = var1 - var2;
 var3 = var6;
@@ -453,10 +506,10 @@ char* var2 /* : NativeString */;
 long var3 /* : Int */;
 long var5 /* : Int */;
 {
-var1 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Object__to_s]))(self) /* to_s on <self:Text>*/;
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Object__to_s]))(self); /* to_s on <self:Text>*/
 }
 {
-var2 = ((char* (*)(val* self))(var1->class->vft[COLOR_standard__string__Text__to_cstring]))(var1) /* to_cstring on <var1:String>*/;
+var2 = ((char*(*)(val* self))(var1->class->vft[COLOR_standard__string__Text__to_cstring]))(var1); /* to_cstring on <var1:String>*/
 }
 {
 { /* Inline string#NativeString#atoi (var2) on <var2:NativeString> */
@@ -479,10 +532,10 @@ char* var2 /* : NativeString */;
 double var3 /* : Float */;
 double var5 /* : Float for extern */;
 {
-var1 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Object__to_s]))(self) /* to_s on <self:Text>*/;
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Object__to_s]))(self); /* to_s on <self:Text>*/
 }
 {
-var2 = ((char* (*)(val* self))(var1->class->vft[COLOR_standard__string__Text__to_cstring]))(var1) /* to_cstring on <var1:String>*/;
+var2 = ((char*(*)(val* self))(var1->class->vft[COLOR_standard__string__Text__to_cstring]))(var1); /* to_cstring on <var1:String>*/
 }
 {
 { /* Inline string#NativeString#atof (var2) on <var2:NativeString> */
@@ -501,12 +554,34 @@ return var;
 long standard___standard__Text___to_hex(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
-long var2 /* : Int */;
-var1 = 16;
 {
-var2 = standard___standard__Text___a_to(self, var1);
+var1 = standard___standard__Text___a_to(self, 16l);
 }
-var = var2;
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Text#to_oct for (self: Text): Int */
+long standard___standard__Text___to_oct(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+{
+var1 = standard___standard__Text___a_to(self, 8l);
+}
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Text#to_bin for (self: Text): Int */
+long standard___standard__Text___to_bin(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+{
+var1 = standard___standard__Text___a_to(self, 2l);
+}
+var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -515,198 +590,186 @@ return var;
 long standard___standard__Text___a_to(val* self, long p0) {
 long var /* : Int */;
 long var_base /* var base: Int */;
-long var1 /* : Int */;
 long var_i /* var i: Int */;
-short int var2 /* : Bool */;
 short int var_neg /* var neg: Bool */;
-long var3 /* : Int */;
 long var_j /* var j: Int */;
-long var4 /* : Int */;
+long var1 /* : Int */;
 long var_ /* var : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
+short int var2 /* : Bool */;
+short int var4 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var8 /* : Bool */;
-val* var9 /* : SequenceRead[Char] */;
-val* var10 /* : nullable Object */;
-char var11 /* : Char */;
-char var_c /* var c: Char */;
-long var12 /* : Int */;
+short int var5 /* : Bool */;
+val* var6 /* : SequenceRead[Char] */;
+val* var7 /* : nullable Object */;
+uint32_t var8 /* : Char */;
+uint32_t var_c /* var c: Char */;
+long var9 /* : Int */;
 long var_v /* var v: Int */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-const char* var_class_name18;
-short int var19 /* : Bool */;
-long var20 /* : Int */;
-long var22 /* : Int */;
-long var23 /* : Int */;
-short int var24 /* : Bool */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+const char* var_class_name15;
+short int var16 /* : Bool */;
+long var17 /* : Int */;
+long var19 /* : Int */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+const char* var_class_name25;
 short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-const char* var_class_name29;
-short int var30 /* : Bool */;
-short int var31 /* : Bool */;
-long var32 /* : Int */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-long var38 /* : Int */;
-long var39 /* : Int */;
-short int var41 /* : Bool */;
-int cltype42;
-int idtype43;
-const char* var_class_name44;
-long var45 /* : Int */;
-long var46 /* : Int */;
-long var47 /* : Int */;
-long var48 /* : Int */;
-long var50 /* : Int */;
+long var27 /* : Int */;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
+const char* var_class_name32;
+long var33 /* : Int */;
+long var34 /* : Int */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+const char* var_class_name39;
+long var40 /* : Int */;
+long var41 /* : Int */;
+long var42 /* : Int */;
+long var44 /* : Int */;
 var_base = p0;
-var1 = 0;
-var_i = var1;
-var2 = 0;
-var_neg = var2;
-var3 = 0;
-var_j = var3;
+var_i = 0l;
+var_neg = 0;
+var_j = 0l;
 {
-var4 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var4;
+var_ = var1;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_j,var_) on <var_j:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var7 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var7)) {
+var4 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var4)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var8 = var_j < var_;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var5 = var_j < var_;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
 }
-if (var5){
+if (var2){
 {
-var9 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var6 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var10 = ((val* (*)(val* self, long p0))(var9->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var9, var_j) /* [] on <var9:SequenceRead[Char]>*/;
+var7 = ((val*(*)(val* self, long p0))((((long)var6&3)?class_info[((long)var6&3)]:var6->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var6, var_j); /* [] on <var6:SequenceRead[Char]>*/
 }
-var11 = ((struct instance_standard__Char*)var10)->value; /* autounbox from nullable Object to Char */;
-var_c = var11;
+var8 = (uint32_t)((long)(var7)>>2);
+var_c = var8;
 {
-var12 = standard___standard__Char___to_i(var_c);
+var9 = standard___standard__Char___to_i(var_c);
 }
-var_v = var12;
+var_v = var9;
 {
 { /* Inline kernel#Int#> (var_v,var_base) on <var_v:Int> */
 /* Covariant cast for argument 0 (i) <var_base:Int> isa OTHER */
 /* <var_base:Int> isa OTHER */
-var15 = 1; /* easy <var_base:Int> isa OTHER*/
-if (unlikely(!var15)) {
-var_class_name18 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
+var12 = 1; /* easy <var_base:Int> isa OTHER*/
+if (unlikely(!var12)) {
+var_class_name15 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name15);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
 }
-var19 = var_v > var_base;
-var13 = var19;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+var16 = var_v > var_base;
+var10 = var16;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-if (var13){
+if (var10){
 if (var_neg){
 {
 { /* Inline kernel#Int#unary - (var_i) on <var_i:Int> */
-var22 = -var_i;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+var19 = -var_i;
+var17 = var19;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
 }
 }
-var = var20;
+var = var17;
 goto RET_LABEL;
 } else {
 var = var_i;
 goto RET_LABEL;
 }
 } else {
-var23 = 0;
 {
-{ /* Inline kernel#Int#< (var_v,var23) on <var_v:Int> */
-/* Covariant cast for argument 0 (i) <var23:Int> isa OTHER */
-/* <var23:Int> isa OTHER */
-var26 = 1; /* easy <var23:Int> isa OTHER*/
-if (unlikely(!var26)) {
-var_class_name29 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_v,0l) on <var_v:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var22 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var22)) {
+var_class_name25 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name25);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var30 = var_v < var23;
-var24 = var30;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
+var26 = var_v < 0l;
+var20 = var26;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
 }
-if (var24){
-var31 = 1;
-var_neg = var31;
+if (var20){
+var_neg = 1;
 } else {
 {
 { /* Inline kernel#Int#* (var_i,var_base) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_base:Int> isa OTHER */
 /* <var_base:Int> isa OTHER */
-var34 = 1; /* easy <var_base:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 417);
-show_backtrace(1);
+var29 = 1; /* easy <var_base:Int> isa OTHER*/
+if (unlikely(!var29)) {
+var_class_name32 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name32);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 541);
+fatal_exit(1);
 }
-var38 = var_i * var_base;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+var33 = var_i * var_base;
+var27 = var33;
+goto RET_LABEL28;
+RET_LABEL28:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var32,var_v) on <var32:Int> */
+{ /* Inline kernel#Int#+ (var27,var_v) on <var27:Int> */
 /* Covariant cast for argument 0 (i) <var_v:Int> isa OTHER */
 /* <var_v:Int> isa OTHER */
-var41 = 1; /* easy <var_v:Int> isa OTHER*/
-if (unlikely(!var41)) {
-var_class_name44 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name44);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var36 = 1; /* easy <var_v:Int> isa OTHER*/
+if (unlikely(!var36)) {
+var_class_name39 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var45 = var32 + var_v;
-var39 = var45;
-goto RET_LABEL40;
-RET_LABEL40:(void)0;
+var40 = var27 + var_v;
+var34 = var40;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
 }
-var_i = var39;
+var_i = var34;
 }
 }
-var46 = 1;
 {
-var47 = standard___standard__Int___Discrete__successor(var_j, var46);
+var41 = standard___standard__Int___Discrete__successor(var_j, 1l);
 }
-var_j = var47;
+var_j = var41;
 } else {
 goto BREAK_label;
 }
@@ -715,13 +778,13 @@ BREAK_label: (void)0;
 if (var_neg){
 {
 { /* Inline kernel#Int#unary - (var_i) on <var_i:Int> */
-var50 = -var_i;
-var48 = var50;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var44 = -var_i;
+var42 = var44;
+goto RET_LABEL43;
+RET_LABEL43:(void)0;
 }
 }
-var = var48;
+var = var42;
 goto RET_LABEL;
 } else {
 var = var_i;
@@ -733,430 +796,459 @@ return var;
 /* method string#Text#is_numeric for (self: Text): Bool */
 short int standard___standard__Text___is_numeric(val* self) {
 short int var /* : Bool */;
-short int var1 /* : Bool */;
 short int var_has_point_or_comma /* var has_point_or_comma: Bool */;
-long var2 /* : Int */;
 long var_i /* var i: Int */;
-long var3 /* : Int */;
+long var1 /* : Int */;
 long var_ /* var : Int */;
+short int var2 /* : Bool */;
 short int var4 /* : Bool */;
-short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var7 /* : Bool */;
-val* var8 /* : SequenceRead[Char] */;
-val* var9 /* : nullable Object */;
-char var10 /* : Char */;
-char var_c /* var c: Char */;
+short int var5 /* : Bool */;
+val* var6 /* : SequenceRead[Char] */;
+val* var7 /* : nullable Object */;
+uint32_t var8 /* : Char */;
+uint32_t var_c /* var c: Char */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
 short int var11 /* : Bool */;
 short int var12 /* : Bool */;
 short int var13 /* : Bool */;
-short int var14 /* : Bool */;
-char var15 /* : Char */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-short int var_19 /* var : Bool */;
-char var20 /* : Char */;
+short int var15 /* : Bool */;
+short int var_16 /* var : Bool */;
+short int var17 /* : Bool */;
+short int var19 /* : Bool */;
+short int var_20 /* var : Bool */;
 short int var21 /* : Bool */;
-short int var23 /* : Bool */;
-short int var_24 /* var : Bool */;
-short int var25 /* : Bool */;
-short int var26 /* : Bool */;
-short int var27 /* : Bool */;
-long var28 /* : Int */;
-long var29 /* : Int */;
-short int var30 /* : Bool */;
-var1 = 0;
-var_has_point_or_comma = var1;
-var2 = 0;
-var_i = var2;
+long var22 /* : Int */;
+var_has_point_or_comma = 0;
+var_i = 0l;
 {
-var3 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var3;
+var_ = var1;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var6 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var6)) {
+var4 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var4)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var7 = var_i < var_;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+var5 = var_i < var_;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
 }
-if (var4){
+if (var2){
 {
-var8 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var6 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var9 = ((val* (*)(val* self, long p0))(var8->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var8, var_i) /* [] on <var8:SequenceRead[Char]>*/;
+var7 = ((val*(*)(val* self, long p0))((((long)var6&3)?class_info[((long)var6&3)]:var6->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var6, var_i); /* [] on <var6:SequenceRead[Char]>*/
 }
-var10 = ((struct instance_standard__Char*)var9)->value; /* autounbox from nullable Object to Char */;
-var_c = var10;
+var8 = (uint32_t)((long)(var7)>>2);
+var_c = var8;
 {
-var11 = standard__string___Char___is_numeric(var_c);
+var9 = standard__string___Char___is_numeric(var_c);
 }
-var12 = !var11;
-if (var12){
-var15 = '.';
+var10 = !var9;
+if (var10){
 {
-{ /* Inline kernel#Char#== (var_c,var15) on <var_c:Char> */
-var18 = var_c == var15;
-var16 = var18;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+{ /* Inline kernel#Char#== (var_c,'.') on <var_c:Char> */
+var15 = var_c == '.';
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
 }
-var_19 = var16;
-if (var16){
-var14 = var_19;
+var_16 = var13;
+if (var13){
+var12 = var_16;
 } else {
-var20 = ',';
 {
-{ /* Inline kernel#Char#== (var_c,var20) on <var_c:Char> */
-var23 = var_c == var20;
-var21 = var23;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+{ /* Inline kernel#Char#== (var_c,',') on <var_c:Char> */
+var19 = var_c == ',';
+var17 = var19;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
 }
 }
-var14 = var21;
+var12 = var17;
 }
-var_24 = var14;
-if (var14){
-var25 = !var_has_point_or_comma;
-var13 = var25;
+var_20 = var12;
+if (var12){
+var21 = !var_has_point_or_comma;
+var11 = var21;
 } else {
-var13 = var_24;
+var11 = var_20;
 }
-if (var13){
-var26 = 1;
-var_has_point_or_comma = var26;
+if (var11){
+var_has_point_or_comma = 1;
 } else {
-var27 = 0;
-var = var27;
+var = 0;
 goto RET_LABEL;
 }
 } else {
 }
-var28 = 1;
 {
-var29 = standard___standard__Int___Discrete__successor(var_i, var28);
+var22 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var29;
+var_i = var22;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
-var30 = 1;
-var = var30;
+var = 1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method string#Text#chomp for (self: Text): Text */
-val* standard___standard__Text___chomp(val* self) {
-val* var /* : Text */;
+/* method string#Text#is_lower for (self: Text): Bool */
+short int standard___standard__Text___is_lower(val* self) {
+short int var /* : Bool */;
+long var_i /* var i: Int */;
 long var1 /* : Int */;
-long var_len /* var len: Int */;
-long var2 /* : Int */;
-short int var3 /* : Bool */;
-short int var5 /* : Bool */;
-short int var6 /* : Bool */;
+long var_ /* var : Int */;
+short int var2 /* : Bool */;
+short int var4 /* : Bool */;
 int cltype;
 int idtype;
-const struct type* type_struct;
 const char* var_class_name;
-val* var7 /* : SequenceRead[Char] */;
-val* var8 /* : nullable Object */;
-char var9 /* : Char */;
-char var_l /* var l: Char */;
-char var10 /* : Char */;
-short int var11 /* : Bool */;
-short int var13 /* : Bool */;
-long var14 /* : Int */;
-long var15 /* : Int */;
-long var16 /* : Int */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-const char* var_class_name21;
-long var22 /* : Int */;
-val* var23 /* : Text */;
-char var24 /* : Char */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
-short int var28 /* : Bool */;
-short int var29 /* : Bool */;
-int cltype30;
-int idtype31;
-const struct type* type_struct32;
-const char* var_class_name33;
-short int var34 /* : Bool */;
-long var35 /* : Int */;
-short int var36 /* : Bool */;
-short int var38 /* : Bool */;
-int cltype39;
-int idtype40;
-const char* var_class_name41;
-short int var42 /* : Bool */;
+short int var5 /* : Bool */;
+val* var6 /* : SequenceRead[Char] */;
+val* var7 /* : nullable Object */;
+uint32_t var8 /* : Char */;
+uint32_t var_char /* var char: Char */;
+short int var9 /* : Bool */;
+long var10 /* : Int */;
+var_i = 0l;
+{
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
+}
+var_ = var1;
+for(;;) {
+{
+{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
+/* <var_:Int> isa OTHER */
+var4 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var4)) {
+var_class_name = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
+}
+var5 = var_i < var_;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
+}
+}
+if (var2){
+{
+var6 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
+}
+{
+var7 = ((val*(*)(val* self, long p0))((((long)var6&3)?class_info[((long)var6&3)]:var6->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var6, var_i); /* [] on <var6:SequenceRead[Char]>*/
+}
+var8 = (uint32_t)((long)(var7)>>2);
+var_char = var8;
+{
+var9 = standard___standard__Char___is_upper(var_char);
+}
+if (var9){
+var = 0;
+goto RET_LABEL;
+} else {
+}
+{
+var10 = standard___standard__Int___Discrete__successor(var_i, 1l);
+}
+var_i = var10;
+} else {
+goto BREAK_label;
+}
+}
+BREAK_label: (void)0;
+var = 1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Text#chomp for (self: Text): Text */
+val* standard___standard__Text___chomp(val* self) {
+val* var /* : Text */;
+long var1 /* : Int */;
+long var_len /* var len: Int */;
+short int var2 /* : Bool */;
+short int var4 /* : Bool */;
+short int var5 /* : Bool */;
+int cltype;
+int idtype;
+const struct type* type_struct;
+const char* var_class_name;
+val* var6 /* : SequenceRead[Char] */;
+val* var7 /* : nullable Object */;
+uint32_t var8 /* : Char */;
+uint32_t var_l /* var l: Char */;
+short int var9 /* : Bool */;
+short int var11 /* : Bool */;
+long var12 /* : Int */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+const char* var_class_name17;
+long var18 /* : Int */;
+val* var19 /* : Text */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
+short int var23 /* : Bool */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+const struct type* type_struct27;
+const char* var_class_name28;
+short int var29 /* : Bool */;
+short int var30 /* : Bool */;
+short int var32 /* : Bool */;
+int cltype33;
+int idtype34;
+const char* var_class_name35;
+short int var36 /* : Bool */;
 short int var_ /* var : Bool */;
-val* var43 /* : SequenceRead[Char] */;
+val* var37 /* : SequenceRead[Char] */;
+long var38 /* : Int */;
+short int var40 /* : Bool */;
+int cltype41;
+int idtype42;
+const char* var_class_name43;
 long var44 /* : Int */;
-long var45 /* : Int */;
-short int var47 /* : Bool */;
-int cltype48;
-int idtype49;
-const char* var_class_name50;
-long var51 /* : Int */;
-val* var52 /* : nullable Object */;
-char var53 /* : Char */;
-short int var54 /* : Bool */;
-short int var56 /* : Bool */;
-char var57 /* : Char */;
+val* var45 /* : nullable Object */;
+short int var46 /* : Bool */;
+short int var48 /* : Bool */;
+uint32_t var49 /* : Char */;
+long var50 /* : Int */;
+short int var52 /* : Bool */;
+int cltype53;
+int idtype54;
+const char* var_class_name55;
+long var56 /* : Int */;
+val* var57 /* : Text */;
 long var58 /* : Int */;
-long var59 /* : Int */;
-long var60 /* : Int */;
-short int var62 /* : Bool */;
-int cltype63;
-int idtype64;
-const char* var_class_name65;
-long var66 /* : Int */;
-val* var67 /* : Text */;
-long var68 /* : Int */;
-long var69 /* : Int */;
-long var70 /* : Int */;
-short int var72 /* : Bool */;
-int cltype73;
-int idtype74;
-const char* var_class_name75;
-long var76 /* : Int */;
-val* var77 /* : Text */;
+short int var60 /* : Bool */;
+int cltype61;
+int idtype62;
+const char* var_class_name63;
+long var64 /* : Int */;
+val* var65 /* : Text */;
 {
-var1 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 var_len = var1;
-var2 = 0;
 {
-{ /* Inline kernel#Int#== (var_len,var2) on <var_len:Int> */
-var5 = var_len == var2;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+{ /* Inline kernel#Int#== (var_len,0l) on <var_len:Int> */
+var4 = var_len == 0l;
+var2 = var4;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
 }
-if (var3){
+if (var2){
 /* <self:Text> isa SELFTYPE */
 type_struct = self->type->resolution_table->types[COLOR_standard__string__Text__SELFTYPE];
 cltype = type_struct->color;
 idtype = type_struct->id;
 if(cltype >= self->type->table_size) {
-var6 = 0;
+var5 = 0;
 } else {
-var6 = self->type->type_table[cltype] == idtype;
+var5 = self->type->type_table[cltype] == idtype;
 }
-if (unlikely(!var6)) {
+if (unlikely(!var5)) {
 var_class_name = self == NULL ? "null" : self->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELFTYPE", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 409);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 436);
+fatal_exit(1);
 }
 var = self;
 goto RET_LABEL;
 } else {
 }
 {
-var7 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var6 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var8 = ((val* (*)(val* self))(var7->class->vft[COLOR_standard__abstract_collection__SequenceRead__last]))(var7) /* last on <var7:SequenceRead[Char]>*/;
+var7 = ((val*(*)(val* self))((((long)var6&3)?class_info[((long)var6&3)]:var6->class)->vft[COLOR_standard__abstract_collection__SequenceRead__last]))(var6); /* last on <var6:SequenceRead[Char]>*/
 }
-var9 = ((struct instance_standard__Char*)var8)->value; /* autounbox from nullable Object to Char */;
-var_l = var9;
-var10 = '\15';
+var8 = (uint32_t)((long)(var7)>>2);
+var_l = var8;
 {
-{ /* Inline kernel#Char#== (var_l,var10) on <var_l:Char> */
-var13 = var_l == var10;
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+{ /* Inline kernel#Char#== (var_l,'\015') on <var_l:Char> */
+var11 = var_l == '\015';
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
-if (var11){
-var14 = 0;
-var15 = 1;
+if (var9){
 {
-{ /* Inline kernel#Int#- (var_len,var15) on <var_len:Int> */
-/* Covariant cast for argument 0 (i) <var15:Int> isa OTHER */
-/* <var15:Int> isa OTHER */
-var18 = 1; /* easy <var15:Int> isa OTHER*/
-if (unlikely(!var18)) {
-var_class_name21 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+{ /* Inline kernel#Int#- (var_len,1l) on <var_len:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var14 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var14)) {
+var_class_name17 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var22 = var_len - var15;
-var16 = var22;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+var18 = var_len - 1l;
+var12 = var18;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
 {
-var23 = ((val* (*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, var14, var16) /* substring on <self:Text>*/;
+var19 = ((val*(*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, 0l, var12); /* substring on <self:Text>*/
 }
-var = var23;
+var = var19;
 goto RET_LABEL;
 } else {
-var24 = '\n';
 {
-{ /* Inline kernel#Char#!= (var_l,var24) on <var_l:Char> */
-var27 = var_l == var24;
-var28 = !var27;
-var25 = var28;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+{ /* Inline kernel#Char#!= (var_l,'\n') on <var_l:Char> */
+var22 = var_l == '\n';
+var23 = !var22;
+var20 = var23;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
 }
-if (var25){
+if (var20){
 /* <self:Text> isa SELFTYPE */
-type_struct32 = self->type->resolution_table->types[COLOR_standard__string__Text__SELFTYPE];
-cltype30 = type_struct32->color;
-idtype31 = type_struct32->id;
-if(cltype30 >= self->type->table_size) {
-var29 = 0;
+type_struct27 = self->type->resolution_table->types[COLOR_standard__string__Text__SELFTYPE];
+cltype25 = type_struct27->color;
+idtype26 = type_struct27->id;
+if(cltype25 >= self->type->table_size) {
+var24 = 0;
 } else {
-var29 = self->type->type_table[cltype30] == idtype31;
+var24 = self->type->type_table[cltype25] == idtype26;
 }
-if (unlikely(!var29)) {
-var_class_name33 = self == NULL ? "null" : self->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELFTYPE", var_class_name33);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 414);
-show_backtrace(1);
+if (unlikely(!var24)) {
+var_class_name28 = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELFTYPE", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 441);
+fatal_exit(1);
 }
 var = self;
 goto RET_LABEL;
 } else {
-var35 = 1;
 {
-{ /* Inline kernel#Int#> (var_len,var35) on <var_len:Int> */
-/* Covariant cast for argument 0 (i) <var35:Int> isa OTHER */
-/* <var35:Int> isa OTHER */
-var38 = 1; /* easy <var35:Int> isa OTHER*/
-if (unlikely(!var38)) {
-var_class_name41 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
+{ /* Inline kernel#Int#> (var_len,1l) on <var_len:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var32 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var32)) {
+var_class_name35 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name35);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
 }
-var42 = var_len > var35;
-var36 = var42;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
+var36 = var_len > 1l;
+var30 = var36;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
 }
 }
-var_ = var36;
-if (var36){
+var_ = var30;
+if (var30){
 {
-var43 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var37 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
-var44 = 2;
 {
-{ /* Inline kernel#Int#- (var_len,var44) on <var_len:Int> */
-/* Covariant cast for argument 0 (i) <var44:Int> isa OTHER */
-/* <var44:Int> isa OTHER */
-var47 = 1; /* easy <var44:Int> isa OTHER*/
-if (unlikely(!var47)) {
-var_class_name50 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name50);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+{ /* Inline kernel#Int#- (var_len,2l) on <var_len:Int> */
+/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
+/* <2l:Int> isa OTHER */
+var40 = 1; /* easy <2l:Int> isa OTHER*/
+if (unlikely(!var40)) {
+var_class_name43 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name43);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var51 = var_len - var44;
-var45 = var51;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
+var44 = var_len - 2l;
+var38 = var44;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
 }
 {
-var52 = ((val* (*)(val* self, long p0))(var43->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var43, var45) /* [] on <var43:SequenceRead[Char]>*/;
+var45 = ((val*(*)(val* self, long p0))((((long)var37&3)?class_info[((long)var37&3)]:var37->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var37, var38); /* [] on <var37:SequenceRead[Char]>*/
 }
-var53 = '\15';
 {
-{ /* Inline kernel#Char#== (var52,var53) on <var52:nullable Object(Char)> */
-var56 = (var52 != NULL) && (var52->class == &class_standard__Char);
-if (var56) {
-var57 = ((struct instance_standard__Char*)var52)->value; /* autounbox from nullable Object to Char */;
-var56 = (var57 == var53);
-}
-var54 = var56;
-goto RET_LABEL55;
-RET_LABEL55:(void)0;
+{ /* Inline kernel#Char#== (var45,'\015') on <var45:nullable Object(Char)> */
+var49 = (uint32_t)((long)(var45)>>2);
+var48 = (var45 != NULL) && (var49 == '\015');
+var46 = var48;
+goto RET_LABEL47;
+RET_LABEL47:(void)0;
 }
 }
-var34 = var54;
+var29 = var46;
 } else {
-var34 = var_;
+var29 = var_;
 }
-if (var34){
-var58 = 0;
-var59 = 2;
+if (var29){
 {
-{ /* Inline kernel#Int#- (var_len,var59) on <var_len:Int> */
-/* Covariant cast for argument 0 (i) <var59:Int> isa OTHER */
-/* <var59:Int> isa OTHER */
-var62 = 1; /* easy <var59:Int> isa OTHER*/
-if (unlikely(!var62)) {
-var_class_name65 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name65);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+{ /* Inline kernel#Int#- (var_len,2l) on <var_len:Int> */
+/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
+/* <2l:Int> isa OTHER */
+var52 = 1; /* easy <2l:Int> isa OTHER*/
+if (unlikely(!var52)) {
+var_class_name55 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var66 = var_len - var59;
-var60 = var66;
-goto RET_LABEL61;
-RET_LABEL61:(void)0;
+var56 = var_len - 2l;
+var50 = var56;
+goto RET_LABEL51;
+RET_LABEL51:(void)0;
 }
 }
 {
-var67 = ((val* (*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, var58, var60) /* substring on <self:Text>*/;
+var57 = ((val*(*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, 0l, var50); /* substring on <self:Text>*/
 }
-var = var67;
+var = var57;
 goto RET_LABEL;
 } else {
-var68 = 0;
-var69 = 1;
 {
-{ /* Inline kernel#Int#- (var_len,var69) on <var_len:Int> */
-/* Covariant cast for argument 0 (i) <var69:Int> isa OTHER */
-/* <var69:Int> isa OTHER */
-var72 = 1; /* easy <var69:Int> isa OTHER*/
-if (unlikely(!var72)) {
-var_class_name75 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name75);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+{ /* Inline kernel#Int#- (var_len,1l) on <var_len:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var60 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var60)) {
+var_class_name63 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var76 = var_len - var69;
-var70 = var76;
-goto RET_LABEL71;
-RET_LABEL71:(void)0;
+var64 = var_len - 1l;
+var58 = var64;
+goto RET_LABEL59;
+RET_LABEL59:(void)0;
 }
 }
 {
-var77 = ((val* (*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, var68, var70) /* substring on <self:Text>*/;
+var65 = ((val*(*)(val* self, long p0, long p1))(self->class->vft[COLOR_standard__string__Text__substring]))(self, 0l, var58); /* substring on <self:Text>*/
 }
-var = var77;
+var = var65;
 goto RET_LABEL;
 }
 }
@@ -1171,518 +1263,460 @@ short int var1 /* : Bool */;
 static val* varonce;
 val* var2 /* : String */;
 char* var3 /* : NativeString */;
-long var4 /* : Int */;
-val* var5 /* : FlatString */;
-val* var6 /* : FlatBuffer */;
-val* var_res /* var res: FlatBuffer */;
-short int var8 /* : Bool */;
+val* var4 /* : FlatString */;
+val* var5 /* : Buffer */;
+val* var6 /* : Buffer */;
+val* var_res /* var res: Buffer */;
 short int var_underscore /* var underscore: Bool */;
-long var9 /* : Int */;
 long var_start /* var start: Int */;
-val* var10 /* : SequenceRead[Char] */;
-long var11 /* : Int */;
-val* var12 /* : nullable Object */;
-char var13 /* : Char */;
-char var_c /* var c: Char */;
-short int var14 /* : Bool */;
-char var15 /* : Char */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
+val* var7 /* : SequenceRead[Char] */;
+val* var8 /* : nullable Object */;
+uint32_t var9 /* : Char */;
+uint32_t var_c /* var c: Char */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var19 /* : Bool */;
+short int var14 /* : Bool */;
 short int var_ /* var : Bool */;
-char var20 /* : Char */;
+short int var15 /* : Bool */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+const char* var_class_name20;
 short int var21 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-short int var27 /* : Bool */;
-char var28 /* : Char */;
-long var29 /* : Int */;
-long var31 /* : Int */;
-val* var32 /* : String */;
-char var33 /* : Char */;
-long var34 /* : Int */;
+long var22 /* : Int */;
+long var24 /* : Int */;
+val* var25 /* : String */;
 long var_i /* var i: Int */;
-long var35 /* : Int */;
-long var_36 /* var : Int */;
-short int var37 /* : Bool */;
+long var26 /* : Int */;
+long var_27 /* var : Int */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+const char* var_class_name33;
+short int var34 /* : Bool */;
+val* var35 /* : SequenceRead[Char] */;
+val* var36 /* : nullable Object */;
+uint32_t var37 /* : Char */;
+short int var38 /* : Bool */;
 short int var39 /* : Bool */;
-int cltype40;
-int idtype41;
-const char* var_class_name42;
-short int var43 /* : Bool */;
-val* var44 /* : SequenceRead[Char] */;
-val* var45 /* : nullable Object */;
-char var46 /* : Char */;
-short int var47 /* : Bool */;
+short int var40 /* : Bool */;
+short int var42 /* : Bool */;
+int cltype43;
+int idtype44;
+const char* var_class_name45;
+short int var46 /* : Bool */;
+short int var_47 /* var : Bool */;
 short int var48 /* : Bool */;
-char var49 /* : Char */;
 short int var50 /* : Bool */;
-short int var52 /* : Bool */;
-int cltype53;
-int idtype54;
-const char* var_class_name55;
+int cltype51;
+int idtype52;
+const char* var_class_name53;
+short int var54 /* : Bool */;
+short int var_55 /* var : Bool */;
 short int var56 /* : Bool */;
-short int var_57 /* var : Bool */;
-char var58 /* : Char */;
+short int var57 /* : Bool */;
 short int var59 /* : Bool */;
-short int var61 /* : Bool */;
-int cltype62;
-int idtype63;
-const char* var_class_name64;
+int cltype60;
+int idtype61;
+const char* var_class_name62;
+short int var63 /* : Bool */;
+short int var_64 /* var : Bool */;
 short int var65 /* : Bool */;
-short int var_66 /* var : Bool */;
 short int var67 /* : Bool */;
-char var68 /* : Char */;
-short int var69 /* : Bool */;
+int cltype68;
+int idtype69;
+const char* var_class_name70;
 short int var71 /* : Bool */;
-int cltype72;
-int idtype73;
-const char* var_class_name74;
-short int var75 /* : Bool */;
-short int var_76 /* var : Bool */;
-char var77 /* : Char */;
-short int var78 /* : Bool */;
-short int var80 /* : Bool */;
-int cltype81;
-int idtype82;
-const char* var_class_name83;
-short int var84 /* : Bool */;
-short int var85 /* : Bool */;
-char var86 /* : Char */;
-long var87 /* : Int */;
-long var89 /* : Int */;
-val* var90 /* : String */;
-char var91 /* : Char */;
-short int var92 /* : Bool */;
-char var93 /* : Char */;
-short int var94 /* : Bool */;
-short int var96 /* : Bool */;
-int cltype97;
-int idtype98;
-const char* var_class_name99;
-short int var100 /* : Bool */;
-short int var_101 /* var : Bool */;
-char var102 /* : Char */;
-short int var103 /* : Bool */;
-short int var105 /* : Bool */;
-int cltype106;
-int idtype107;
-const char* var_class_name108;
-short int var109 /* : Bool */;
-short int var110 /* : Bool */;
-char var111 /* : Char */;
-short int var112 /* : Bool */;
-short int var114 /* : Bool */;
-short int var115 /* : Bool */;
-char var116 /* : Char */;
-long var117 /* : Int */;
-long var119 /* : Int */;
-val* var120 /* : String */;
-char var121 /* : Char */;
-short int var122 /* : Bool */;
-long var123 /* : Int */;
-long var124 /* : Int */;
-char var126 /* : Char */;
-long var127 /* : Int */;
-long var129 /* : Int */;
-val* var130 /* : String */;
-char var131 /* : Char */;
-val* var132 /* : String */;
-{
-var1 = standard___standard__Text___is_empty(self);
+long var72 /* : Int */;
+long var74 /* : Int */;
+val* var75 /* : String */;
+short int var76 /* : Bool */;
+short int var77 /* : Bool */;
+short int var79 /* : Bool */;
+int cltype80;
+int idtype81;
+const char* var_class_name82;
+short int var83 /* : Bool */;
+short int var_84 /* var : Bool */;
+short int var85 /* : Bool */;
+short int var87 /* : Bool */;
+int cltype88;
+int idtype89;
+const char* var_class_name90;
+short int var91 /* : Bool */;
+short int var92 /* : Bool */;
+short int var94 /* : Bool */;
+long var95 /* : Int */;
+long var97 /* : Int */;
+val* var98 /* : String */;
+long var99 /* : Int */;
+long var101 /* : Int */;
+long var103 /* : Int */;
+val* var104 /* : String */;
+val* var105 /* : String */;
+{
+var1 = standard___standard__Text___is_empty(self);
 }
 if (var1){
-if (varonce) {
+if (likely(varonce!=NULL)) {
 var2 = varonce;
 } else {
 var3 = "";
-var4 = 0;
-var5 = standard___standard__NativeString___to_s_with_length(var3, var4);
-var2 = var5;
+var4 = standard___standard__NativeString___to_s_with_length(var3, 0l);
+var2 = var4;
 varonce = var2;
 }
 var = var2;
 goto RET_LABEL;
 } else {
 }
-var6 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
+var5 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-{ /* Inline string#FlatBuffer#init (var6) on <var6:FlatBuffer> */
-{
-((void (*)(val* self))(var6->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var6) /* init on <var6:FlatBuffer>*/;
-}
-RET_LABEL7:(void)0;
-}
+var6 = standard___standard__Buffer___new(var5);
 }
 var_res = var6;
-var8 = 0;
-var_underscore = var8;
-var9 = 0;
-var_start = var9;
+var_underscore = 0;
+var_start = 0l;
 {
-var10 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var7 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
-var11 = 0;
 {
-var12 = ((val* (*)(val* self, long p0))(var10->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var10, var11) /* [] on <var10:SequenceRead[Char]>*/;
+var8 = ((val*(*)(val* self, long p0))((((long)var7&3)?class_info[((long)var7&3)]:var7->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var7, 0l); /* [] on <var7:SequenceRead[Char]>*/
 }
-var13 = ((struct instance_standard__Char*)var12)->value; /* autounbox from nullable Object to Char */;
-var_c = var13;
-var15 = '0';
+var9 = (uint32_t)((long)(var8)>>2);
+var_c = var9;
 {
-{ /* Inline kernel#Char#>= (var_c,var15) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var15:Char> isa OTHER */
-/* <var15:Char> isa OTHER */
-var18 = 1; /* easy <var15:Char> isa OTHER*/
-if (unlikely(!var18)) {
+{ /* Inline kernel#Char#>= (var_c,'0') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
+/* <'0':Char> isa OTHER */
+var13 = 1; /* easy <'0':Char> isa OTHER*/
+if (unlikely(!var13)) {
 var_class_name = type_standard__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 593);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 724);
+fatal_exit(1);
 }
-var19 = var_c >= var15;
-var16 = var19;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+var14 = var_c >= '0';
+var11 = var14;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
 }
-var_ = var16;
-if (var16){
-var20 = '9';
+var_ = var11;
+if (var11){
 {
-{ /* Inline kernel#Char#<= (var_c,var20) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var20:Char> isa OTHER */
-/* <var20:Char> isa OTHER */
-var23 = 1; /* easy <var20:Char> isa OTHER*/
-if (unlikely(!var23)) {
-var_class_name26 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 591);
-show_backtrace(1);
+{ /* Inline kernel#Char#<= (var_c,'9') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
+/* <'9':Char> isa OTHER */
+var17 = 1; /* easy <'9':Char> isa OTHER*/
+if (unlikely(!var17)) {
+var_class_name20 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 722);
+fatal_exit(1);
 }
-var27 = var_c <= var20;
-var21 = var27;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+var21 = var_c <= '9';
+var15 = var21;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
 }
 }
-var14 = var21;
+var10 = var15;
 } else {
-var14 = var_;
+var10 = var_;
 }
-if (var14){
-var28 = '_';
+if (var10){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var28); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, '_'); /* add on <var_res:Buffer>*/
 }
 {
 { /* Inline kernel#Char#ascii (var_c) on <var_c:Char> */
-var31 = (unsigned char)var_c;
-var29 = var31;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
+var24 = (long)var_c;
+var22 = var24;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
 {
-var32 = standard__string___Int___Object__to_s(var29);
+var25 = standard__string___Int___Object__to_s(var22);
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_res, var32); /* Direct call string#FlatBuffer#append on <var_res:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_standard__string__Buffer__append]))(var_res, var25); /* append on <var_res:Buffer>*/
 }
-var33 = 'd';
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var33); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
 }
-var34 = 1;
-var_start = var34;
+var_start = 1l;
 } else {
 }
 var_i = var_start;
 {
-var35 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var26 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_36 = var35;
+var_27 = var26;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_36) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var_36:Int> isa OTHER */
-/* <var_36:Int> isa OTHER */
-var39 = 1; /* easy <var_36:Int> isa OTHER*/
-if (unlikely(!var39)) {
-var_class_name42 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name42);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_i,var_27) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var_27:Int> isa OTHER */
+/* <var_27:Int> isa OTHER */
+var30 = 1; /* easy <var_27:Int> isa OTHER*/
+if (unlikely(!var30)) {
+var_class_name33 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var43 = var_i < var_36;
-var37 = var43;
-goto RET_LABEL38;
-RET_LABEL38:(void)0;
+var34 = var_i < var_27;
+var28 = var34;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
-if (var37){
+if (var28){
 {
-var44 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var35 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var45 = ((val* (*)(val* self, long p0))(var44->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var44, var_i) /* [] on <var44:SequenceRead[Char]>*/;
+var36 = ((val*(*)(val* self, long p0))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var35, var_i); /* [] on <var35:SequenceRead[Char]>*/
 }
-var46 = ((struct instance_standard__Char*)var45)->value; /* autounbox from nullable Object to Char */;
-var_c = var46;
-var49 = 'a';
+var37 = (uint32_t)((long)(var36)>>2);
+var_c = var37;
 {
-{ /* Inline kernel#Char#>= (var_c,var49) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var49:Char> isa OTHER */
-/* <var49:Char> isa OTHER */
-var52 = 1; /* easy <var49:Char> isa OTHER*/
-if (unlikely(!var52)) {
-var_class_name55 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 593);
-show_backtrace(1);
+{ /* Inline kernel#Char#>= (var_c,'a') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'a':Char> isa OTHER */
+/* <'a':Char> isa OTHER */
+var42 = 1; /* easy <'a':Char> isa OTHER*/
+if (unlikely(!var42)) {
+var_class_name45 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name45);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 724);
+fatal_exit(1);
 }
-var56 = var_c >= var49;
-var50 = var56;
-goto RET_LABEL51;
-RET_LABEL51:(void)0;
+var46 = var_c >= 'a';
+var40 = var46;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
 }
-var_57 = var50;
-if (var50){
-var58 = 'z';
+var_47 = var40;
+if (var40){
 {
-{ /* Inline kernel#Char#<= (var_c,var58) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var58:Char> isa OTHER */
-/* <var58:Char> isa OTHER */
-var61 = 1; /* easy <var58:Char> isa OTHER*/
-if (unlikely(!var61)) {
-var_class_name64 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name64);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 591);
-show_backtrace(1);
-}
-var65 = var_c <= var58;
-var59 = var65;
-goto RET_LABEL60;
-RET_LABEL60:(void)0;
+{ /* Inline kernel#Char#<= (var_c,'z') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'z':Char> isa OTHER */
+/* <'z':Char> isa OTHER */
+var50 = 1; /* easy <'z':Char> isa OTHER*/
+if (unlikely(!var50)) {
+var_class_name53 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 722);
+fatal_exit(1);
 }
+var54 = var_c <= 'z';
+var48 = var54;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
-var48 = var59;
-} else {
-var48 = var_57;
 }
-var_66 = var48;
-if (var48){
-var47 = var_66;
+var39 = var48;
 } else {
-var68 = 'A';
-{
-{ /* Inline kernel#Char#>= (var_c,var68) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var68:Char> isa OTHER */
-/* <var68:Char> isa OTHER */
-var71 = 1; /* easy <var68:Char> isa OTHER*/
-if (unlikely(!var71)) {
-var_class_name74 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name74);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 593);
-show_backtrace(1);
+var39 = var_47;
 }
-var75 = var_c >= var68;
-var69 = var75;
-goto RET_LABEL70;
-RET_LABEL70:(void)0;
+var_55 = var39;
+if (var39){
+var38 = var_55;
+} else {
+{
+{ /* Inline kernel#Char#>= (var_c,'A') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'A':Char> isa OTHER */
+/* <'A':Char> isa OTHER */
+var59 = 1; /* easy <'A':Char> isa OTHER*/
+if (unlikely(!var59)) {
+var_class_name62 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name62);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 724);
+fatal_exit(1);
+}
+var63 = var_c >= 'A';
+var57 = var63;
+goto RET_LABEL58;
+RET_LABEL58:(void)0;
 }
 }
-var_76 = var69;
-if (var69){
-var77 = 'Z';
+var_64 = var57;
+if (var57){
 {
-{ /* Inline kernel#Char#<= (var_c,var77) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var77:Char> isa OTHER */
-/* <var77:Char> isa OTHER */
-var80 = 1; /* easy <var77:Char> isa OTHER*/
-if (unlikely(!var80)) {
-var_class_name83 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name83);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 591);
-show_backtrace(1);
+{ /* Inline kernel#Char#<= (var_c,'Z') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'Z':Char> isa OTHER */
+/* <'Z':Char> isa OTHER */
+var67 = 1; /* easy <'Z':Char> isa OTHER*/
+if (unlikely(!var67)) {
+var_class_name70 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name70);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 722);
+fatal_exit(1);
 }
-var84 = var_c <= var77;
-var78 = var84;
-goto RET_LABEL79;
-RET_LABEL79:(void)0;
+var71 = var_c <= 'Z';
+var65 = var71;
+goto RET_LABEL66;
+RET_LABEL66:(void)0;
 }
 }
-var67 = var78;
+var56 = var65;
 } else {
-var67 = var_76;
+var56 = var_64;
 }
-var47 = var67;
+var38 = var56;
 }
-if (var47){
+if (var38){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var_c); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
-var85 = 0;
-var_underscore = var85;
+var_underscore = 0;
 goto BREAK_label;
 } else {
 }
 if (var_underscore){
-var86 = '_';
 {
-{ /* Inline kernel#Char#ascii (var86) on <var86:Char> */
-var89 = (unsigned char)var86;
-var87 = var89;
-goto RET_LABEL88;
-RET_LABEL88:(void)0;
+{ /* Inline kernel#Char#ascii ('_') on <'_':Char> */
+var74 = (long)'_';
+var72 = var74;
+goto RET_LABEL73;
+RET_LABEL73:(void)0;
 }
 }
 {
-var90 = standard__string___Int___Object__to_s(var87);
+var75 = standard__string___Int___Object__to_s(var72);
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_res, var90); /* Direct call string#FlatBuffer#append on <var_res:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_standard__string__Buffer__append]))(var_res, var75); /* append on <var_res:Buffer>*/
 }
-var91 = 'd';
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var91); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
 }
 } else {
 }
-var93 = '0';
 {
-{ /* Inline kernel#Char#>= (var_c,var93) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var93:Char> isa OTHER */
-/* <var93:Char> isa OTHER */
-var96 = 1; /* easy <var93:Char> isa OTHER*/
-if (unlikely(!var96)) {
-var_class_name99 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name99);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 593);
-show_backtrace(1);
+{ /* Inline kernel#Char#>= (var_c,'0') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
+/* <'0':Char> isa OTHER */
+var79 = 1; /* easy <'0':Char> isa OTHER*/
+if (unlikely(!var79)) {
+var_class_name82 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name82);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 724);
+fatal_exit(1);
 }
-var100 = var_c >= var93;
-var94 = var100;
-goto RET_LABEL95;
-RET_LABEL95:(void)0;
+var83 = var_c >= '0';
+var77 = var83;
+goto RET_LABEL78;
+RET_LABEL78:(void)0;
 }
 }
-var_101 = var94;
-if (var94){
-var102 = '9';
+var_84 = var77;
+if (var77){
 {
-{ /* Inline kernel#Char#<= (var_c,var102) on <var_c:Char> */
-/* Covariant cast for argument 0 (i) <var102:Char> isa OTHER */
-/* <var102:Char> isa OTHER */
-var105 = 1; /* easy <var102:Char> isa OTHER*/
-if (unlikely(!var105)) {
-var_class_name108 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name108);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 591);
-show_backtrace(1);
+{ /* Inline kernel#Char#<= (var_c,'9') on <var_c:Char> */
+/* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
+/* <'9':Char> isa OTHER */
+var87 = 1; /* easy <'9':Char> isa OTHER*/
+if (unlikely(!var87)) {
+var_class_name90 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name90);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 722);
+fatal_exit(1);
 }
-var109 = var_c <= var102;
-var103 = var109;
-goto RET_LABEL104;
-RET_LABEL104:(void)0;
+var91 = var_c <= '9';
+var85 = var91;
+goto RET_LABEL86;
+RET_LABEL86:(void)0;
 }
 }
-var92 = var103;
+var76 = var85;
 } else {
-var92 = var_101;
+var76 = var_84;
 }
-if (var92){
+if (var76){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var_c); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
-var110 = 0;
-var_underscore = var110;
+var_underscore = 0;
 } else {
-var111 = '_';
 {
-{ /* Inline kernel#Char#== (var_c,var111) on <var_c:Char> */
-var114 = var_c == var111;
-var112 = var114;
-goto RET_LABEL113;
-RET_LABEL113:(void)0;
+{ /* Inline kernel#Char#== (var_c,'_') on <var_c:Char> */
+var94 = var_c == '_';
+var92 = var94;
+goto RET_LABEL93;
+RET_LABEL93:(void)0;
 }
 }
-if (var112){
+if (var92){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var_c); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
-var115 = 1;
-var_underscore = var115;
+var_underscore = 1;
 } else {
-var116 = '_';
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var116); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, '_'); /* add on <var_res:Buffer>*/
 }
 {
 { /* Inline kernel#Char#ascii (var_c) on <var_c:Char> */
-var119 = (unsigned char)var_c;
-var117 = var119;
-goto RET_LABEL118;
-RET_LABEL118:(void)0;
+var97 = (long)var_c;
+var95 = var97;
+goto RET_LABEL96;
+RET_LABEL96:(void)0;
 }
 }
 {
-var120 = standard__string___Int___Object__to_s(var117);
+var98 = standard__string___Int___Object__to_s(var95);
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_res, var120); /* Direct call string#FlatBuffer#append on <var_res:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_standard__string__Buffer__append]))(var_res, var98); /* append on <var_res:Buffer>*/
 }
-var121 = 'd';
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var121); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
 }
-var122 = 0;
-var_underscore = var122;
+var_underscore = 0;
 }
 }
 BREAK_label: (void)0;
-var123 = 1;
 {
-var124 = standard___standard__Int___Discrete__successor(var_i, var123);
+var99 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var124;
+var_i = var99;
 } else {
-goto BREAK_label125;
+goto BREAK_label100;
 }
 }
-BREAK_label125: (void)0;
+BREAK_label100: (void)0;
 if (var_underscore){
-var126 = '_';
 {
-{ /* Inline kernel#Char#ascii (var126) on <var126:Char> */
-var129 = (unsigned char)var126;
-var127 = var129;
-goto RET_LABEL128;
-RET_LABEL128:(void)0;
+{ /* Inline kernel#Char#ascii ('_') on <'_':Char> */
+var103 = (long)'_';
+var101 = var103;
+goto RET_LABEL102;
+RET_LABEL102:(void)0;
 }
 }
 {
-var130 = standard__string___Int___Object__to_s(var127);
+var104 = standard__string___Int___Object__to_s(var101);
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_res, var130); /* Direct call string#FlatBuffer#append on <var_res:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_standard__string__Buffer__append]))(var_res, var104); /* append on <var_res:Buffer>*/
 }
-var131 = 'd';
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var131); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
 }
 } else {
 }
 {
-var132 = standard___standard__FlatBuffer___Object__to_s(var_res);
+var105 = ((val*(*)(val* self))(var_res->class->vft[COLOR_standard__string__Object__to_s]))(var_res); /* to_s on <var_res:Buffer>*/
 }
-var = var132;
+var = var105;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -1690,314 +1724,326 @@ return var;
 /* method string#Text#escape_to_c for (self: Text): String */
 val* standard___standard__Text___escape_to_c(val* self) {
 val* var /* : String */;
-val* var1 /* : FlatBuffer */;
-val* var_b /* var b: FlatBuffer */;
-long var3 /* : Int */;
+val* var1 /* : Buffer */;
+val* var2 /* : Buffer */;
+val* var_b /* var b: Buffer */;
 long var_i /* var i: Int */;
-long var4 /* : Int */;
+long var3 /* : Int */;
 long var_ /* var : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var8 /* : Bool */;
-val* var9 /* : SequenceRead[Char] */;
-val* var10 /* : nullable Object */;
-char var11 /* : Char */;
-char var_c /* var c: Char */;
-char var12 /* : Char */;
+short int var7 /* : Bool */;
+val* var8 /* : SequenceRead[Char] */;
+val* var9 /* : nullable Object */;
+uint32_t var10 /* : Char */;
+uint32_t var_c /* var c: Char */;
+short int var11 /* : Bool */;
 short int var13 /* : Bool */;
-short int var15 /* : Bool */;
 static val* varonce;
-val* var16 /* : String */;
-char* var17 /* : NativeString */;
-long var18 /* : Int */;
-val* var19 /* : FlatString */;
-char var20 /* : Char */;
-short int var21 /* : Bool */;
-short int var23 /* : Bool */;
-static val* varonce24;
-val* var25 /* : String */;
-char* var26 /* : NativeString */;
-long var27 /* : Int */;
-val* var28 /* : FlatString */;
-char var29 /* : Char */;
-short int var30 /* : Bool */;
-short int var32 /* : Bool */;
-static val* varonce33;
-val* var34 /* : String */;
-char* var35 /* : NativeString */;
-long var36 /* : Int */;
+val* var14 /* : String */;
+char* var15 /* : NativeString */;
+val* var16 /* : FlatString */;
+short int var17 /* : Bool */;
+short int var19 /* : Bool */;
+static val* varonce20;
+val* var21 /* : String */;
+char* var22 /* : NativeString */;
+val* var23 /* : FlatString */;
+short int var24 /* : Bool */;
+short int var26 /* : Bool */;
+static val* varonce27;
+val* var28 /* : String */;
+char* var29 /* : NativeString */;
+val* var30 /* : FlatString */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+static val* varonce34;
+val* var35 /* : String */;
+char* var36 /* : NativeString */;
 val* var37 /* : FlatString */;
-char var38 /* : Char */;
-short int var39 /* : Bool */;
-short int var41 /* : Bool */;
-static val* varonce42;
-val* var43 /* : String */;
-char* var44 /* : NativeString */;
-long var45 /* : Int */;
-val* var46 /* : FlatString */;
-char var47 /* : Char */;
-short int var48 /* : Bool */;
-short int var50 /* : Bool */;
-static val* varonce51;
-val* var52 /* : String */;
-char* var53 /* : NativeString */;
+short int var38 /* : Bool */;
+short int var40 /* : Bool */;
+static val* varonce41;
+val* var42 /* : String */;
+char* var43 /* : NativeString */;
+val* var44 /* : FlatString */;
+short int var45 /* : Bool */;
+short int var47 /* : Bool */;
+static val* varonce48;
+val* var49 /* : String */;
+char* var50 /* : NativeString */;
+val* var51 /* : FlatString */;
+long var52 /* : Int */;
 long var54 /* : Int */;
-val* var55 /* : FlatString */;
-long var56 /* : Int */;
-long var58 /* : Int */;
-long var59 /* : Int */;
-short int var60 /* : Bool */;
-short int var62 /* : Bool */;
-int cltype63;
-int idtype64;
-const char* var_class_name65;
-short int var66 /* : Bool */;
-static val* varonce67;
-val* var68 /* : String */;
-char* var69 /* : NativeString */;
+short int var55 /* : Bool */;
+short int var57 /* : Bool */;
+int cltype58;
+int idtype59;
+const char* var_class_name60;
+short int var61 /* : Bool */;
+long var62 /* : Int */;
+long var64 /* : Int */;
+val* var65 /* : String */;
+val* var_oct /* var oct: String */;
+long var66 /* : Int */;
+short int var67 /* : Bool */;
+short int var69 /* : Bool */;
 long var70 /* : Int */;
-val* var71 /* : FlatString */;
-long var72 /* : Int */;
+short int var71 /* : Bool */;
+short int var73 /* : Bool */;
 long var74 /* : Int */;
-long var75 /* : Int */;
-short int var76 /* : Bool */;
-val* var77 /* : String */;
-val* var78 /* : Array[Object] */;
-long var79 /* : Int */;
-val* var80 /* : NativeArray[Object] */;
-val* var81 /* : String */;
-long var82 /* : Int */;
-long var83 /* : Int */;
-val* var84 /* : String */;
-var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
-{
-{ /* Inline string#FlatBuffer#init (var1) on <var1:FlatBuffer> */
+val* var75 /* : String */;
+var1 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-((void (*)(val* self))(var1->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var1) /* init on <var1:FlatBuffer>*/;
-}
-RET_LABEL2:(void)0;
-}
+var2 = standard___standard__Buffer___new(var1);
 }
-var_b = var1;
-var3 = 0;
-var_i = var3;
+var_b = var2;
+var_i = 0l;
 {
-var4 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var3 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var4;
+var_ = var3;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var7 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var7)) {
+var6 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var6)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var8 = var_i < var_;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var7 = var_i < var_;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
-if (var5){
+if (var4){
 {
-var9 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var8 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var10 = ((val* (*)(val* self, long p0))(var9->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var9, var_i) /* [] on <var9:SequenceRead[Char]>*/;
+var9 = ((val*(*)(val* self, long p0))((((long)var8&3)?class_info[((long)var8&3)]:var8->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var8, var_i); /* [] on <var8:SequenceRead[Char]>*/
 }
-var11 = ((struct instance_standard__Char*)var10)->value; /* autounbox from nullable Object to Char */;
-var_c = var11;
-var12 = '\n';
+var10 = (uint32_t)((long)(var9)>>2);
+var_c = var10;
 {
-{ /* Inline kernel#Char#== (var_c,var12) on <var_c:Char> */
-var15 = var_c == var12;
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\n') on <var_c:Char> */
+var13 = var_c == '\n';
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
 }
-if (var13){
-if (varonce) {
-var16 = varonce;
+if (var11){
+if (likely(varonce!=NULL)) {
+var14 = varonce;
 } else {
-var17 = "\\n";
-var18 = 2;
-var19 = standard___standard__NativeString___to_s_with_length(var17, var18);
-var16 = var19;
-varonce = var16;
+var15 = "\\n";
+var16 = standard___standard__NativeString___to_s_with_length(var15, 2l);
+var14 = var16;
+varonce = var14;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var16); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var14); /* append on <var_b:Buffer>*/
 }
 } else {
-var20 = '\0';
 {
-{ /* Inline kernel#Char#== (var_c,var20) on <var_c:Char> */
-var23 = var_c == var20;
+{ /* Inline kernel#Char#== (var_c,'\t') on <var_c:Char> */
+var19 = var_c == '\t';
+var17 = var19;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
+}
+}
+if (var17){
+if (likely(varonce20!=NULL)) {
+var21 = varonce20;
+} else {
+var22 = "\\t";
+var23 = standard___standard__NativeString___to_s_with_length(var22, 2l);
 var21 = var23;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+varonce20 = var21;
 }
+{
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var21); /* append on <var_b:Buffer>*/
 }
-if (var21){
-if (varonce24) {
-var25 = varonce24;
 } else {
-var26 = "\\0";
-var27 = 2;
-var28 = standard___standard__NativeString___to_s_with_length(var26, var27);
-var25 = var28;
-varonce24 = var25;
+{
+{ /* Inline kernel#Char#== (var_c,'\000') on <var_c:Char> */
+var26 = var_c == '\000';
+var24 = var26;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
+}
+}
+if (var24){
+if (likely(varonce27!=NULL)) {
+var28 = varonce27;
+} else {
+var29 = "\\000";
+var30 = standard___standard__NativeString___to_s_with_length(var29, 4l);
+var28 = var30;
+varonce27 = var28;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var25); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var28); /* append on <var_b:Buffer>*/
 }
 } else {
-var29 = '\"';
 {
-{ /* Inline kernel#Char#== (var_c,var29) on <var_c:Char> */
-var32 = var_c == var29;
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\"') on <var_c:Char> */
+var33 = var_c == '\"';
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
 }
-if (var30){
-if (varonce33) {
-var34 = varonce33;
+if (var31){
+if (likely(varonce34!=NULL)) {
+var35 = varonce34;
 } else {
-var35 = "\\\"";
-var36 = 2;
-var37 = standard___standard__NativeString___to_s_with_length(var35, var36);
-var34 = var37;
-varonce33 = var34;
+var36 = "\\\"";
+var37 = standard___standard__NativeString___to_s_with_length(var36, 2l);
+var35 = var37;
+varonce34 = var35;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var34); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var35); /* append on <var_b:Buffer>*/
 }
 } else {
-var38 = '\'';
 {
-{ /* Inline kernel#Char#== (var_c,var38) on <var_c:Char> */
-var41 = var_c == var38;
-var39 = var41;
-goto RET_LABEL40;
-RET_LABEL40:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\'') on <var_c:Char> */
+var40 = var_c == '\'';
+var38 = var40;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
 }
-if (var39){
-if (varonce42) {
-var43 = varonce42;
+if (var38){
+if (likely(varonce41!=NULL)) {
+var42 = varonce41;
 } else {
-var44 = "\\\'";
-var45 = 2;
-var46 = standard___standard__NativeString___to_s_with_length(var44, var45);
-var43 = var46;
-varonce42 = var43;
+var43 = "\\\'";
+var44 = standard___standard__NativeString___to_s_with_length(var43, 2l);
+var42 = var44;
+varonce41 = var42;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var43); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var42); /* append on <var_b:Buffer>*/
 }
 } else {
-var47 = '\\';
 {
-{ /* Inline kernel#Char#== (var_c,var47) on <var_c:Char> */
-var50 = var_c == var47;
-var48 = var50;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\\') on <var_c:Char> */
+var47 = var_c == '\\';
+var45 = var47;
+goto RET_LABEL46;
+RET_LABEL46:(void)0;
 }
 }
-if (var48){
-if (varonce51) {
-var52 = varonce51;
+if (var45){
+if (likely(varonce48!=NULL)) {
+var49 = varonce48;
 } else {
-var53 = "\\\\";
-var54 = 2;
-var55 = standard___standard__NativeString___to_s_with_length(var53, var54);
-var52 = var55;
-varonce51 = var52;
+var50 = "\\\\";
+var51 = standard___standard__NativeString___to_s_with_length(var50, 2l);
+var49 = var51;
+varonce48 = var49;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var52); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var49); /* append on <var_b:Buffer>*/
 }
 } else {
 {
 { /* Inline kernel#Char#ascii (var_c) on <var_c:Char> */
-var58 = (unsigned char)var_c;
-var56 = var58;
-goto RET_LABEL57;
-RET_LABEL57:(void)0;
+var54 = (long)var_c;
+var52 = var54;
+goto RET_LABEL53;
+RET_LABEL53:(void)0;
 }
 }
-var59 = 32;
 {
-{ /* Inline kernel#Int#< (var56,var59) on <var56:Int> */
-/* Covariant cast for argument 0 (i) <var59:Int> isa OTHER */
-/* <var59:Int> isa OTHER */
-var62 = 1; /* easy <var59:Int> isa OTHER*/
-if (unlikely(!var62)) {
-var_class_name65 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name65);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var52,32l) on <var52:Int> */
+/* Covariant cast for argument 0 (i) <32l:Int> isa OTHER */
+/* <32l:Int> isa OTHER */
+var57 = 1; /* easy <32l:Int> isa OTHER*/
+if (unlikely(!var57)) {
+var_class_name60 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name60);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var66 = var56 < var59;
-var60 = var66;
-goto RET_LABEL61;
-RET_LABEL61:(void)0;
+var61 = var52 < 32l;
+var55 = var61;
+goto RET_LABEL56;
+RET_LABEL56:(void)0;
 }
 }
-if (var60){
-if (varonce67) {
-var68 = varonce67;
-} else {
-var69 = "\\";
-var70 = 1;
-var71 = standard___standard__NativeString___to_s_with_length(var69, var70);
-var68 = var71;
-varonce67 = var68;
+if (var55){
+{
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, '\\'); /* add on <var_b:Buffer>*/
 }
 {
 { /* Inline kernel#Char#ascii (var_c) on <var_c:Char> */
-var74 = (unsigned char)var_c;
-var72 = var74;
-goto RET_LABEL73;
-RET_LABEL73:(void)0;
+var64 = (long)var_c;
+var62 = var64;
+goto RET_LABEL63;
+RET_LABEL63:(void)0;
+}
+}
+{
+var65 = standard__string___Int___to_base(var62, 8l, 0);
+}
+var_oct = var65;
+{
+var66 = ((long(*)(val* self))(var_oct->class->vft[COLOR_standard__string__Text__length]))(var_oct); /* length on <var_oct:String>*/
+}
+{
+{ /* Inline kernel#Int#== (var66,1l) on <var66:Int> */
+var69 = var66 == 1l;
+var67 = var69;
+goto RET_LABEL68;
+RET_LABEL68:(void)0;
+}
 }
+if (var67){
+{
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, '0'); /* add on <var_b:Buffer>*/
+}
+{
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, '0'); /* add on <var_b:Buffer>*/
 }
-var75 = 8;
-var76 = 0;
+} else {
 {
-var77 = standard__string___Int___to_base(var72, var75, var76);
+var70 = ((long(*)(val* self))(var_oct->class->vft[COLOR_standard__string__Text__length]))(var_oct); /* length on <var_oct:String>*/
 }
-var78 = NEW_standard__Array(&type_standard__Array__standard__Object);
-{ /* var78 = array_instance Array[Object] */
-var79 = 2;
-var80 = NEW_standard__NativeArray(var79, &type_standard__NativeArray__standard__Object);
-((struct instance_standard__NativeArray*)var80)->values[0] = (val*) var68;
-((struct instance_standard__NativeArray*)var80)->values[1] = (val*) var77;
 {
-((void (*)(val* self, val* p0, long p1))(var78->class->vft[COLOR_standard__array__Array__with_native]))(var78, var80, var79) /* with_native on <var78:Array[Object]>*/;
+{ /* Inline kernel#Int#== (var70,2l) on <var70:Int> */
+var73 = var70 == 2l;
+var71 = var73;
+goto RET_LABEL72;
+RET_LABEL72:(void)0;
 }
 }
+if (var71){
 {
-var81 = ((val* (*)(val* self))(var78->class->vft[COLOR_standard__string__Object__to_s]))(var78) /* to_s on <var78:Array[Object]>*/;
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, '0'); /* add on <var_b:Buffer>*/
+}
+} else {
+}
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var81); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var_oct); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-standard___standard__FlatBuffer___Buffer__add(var_b, var_c); /* Direct call string#FlatBuffer#add on <var_b:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, var_c); /* add on <var_b:Buffer>*/
+}
 }
 }
 }
@@ -2005,20 +2051,19 @@ standard___standard__FlatBuffer___Buffer__add(var_b, var_c); /* Direct call stri
 }
 }
 }
-var82 = 1;
 {
-var83 = standard___standard__Int___Discrete__successor(var_i, var82);
+var74 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var83;
+var_i = var74;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
 {
-var84 = standard___standard__FlatBuffer___Object__to_s(var_b);
+var75 = ((val*(*)(val* self))(var_b->class->vft[COLOR_standard__string__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
 }
-var = var84;
+var = var75;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -2026,178 +2071,140 @@ return var;
 /* method string#Text#escape_to_sh for (self: Text): String */
 val* standard___standard__Text___escape_to_sh(val* self) {
 val* var /* : String */;
-val* var1 /* : FlatBuffer */;
-val* var_b /* var b: FlatBuffer */;
-val* var3 /* : Sequence[Char] */;
-val* var5 /* : Sequence[Char] */;
-char var6 /* : Char */;
-val* var7 /* : nullable Object */;
-long var8 /* : Int */;
+val* var1 /* : Buffer */;
+val* var2 /* : Buffer */;
+val* var_b /* var b: Buffer */;
+val* var3 /* : SequenceRead[Char] */;
+val* var4 /* : nullable Object */;
 long var_i /* var i: Int */;
-long var9 /* : Int */;
+long var5 /* : Int */;
 long var_ /* var : Int */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
+short int var9 /* : Bool */;
+val* var10 /* : SequenceRead[Char] */;
+val* var11 /* : nullable Object */;
+uint32_t var12 /* : Char */;
+uint32_t var_c /* var c: Char */;
 short int var13 /* : Bool */;
-val* var14 /* : SequenceRead[Char] */;
-val* var15 /* : nullable Object */;
-char var16 /* : Char */;
-char var_c /* var c: Char */;
-char var17 /* : Char */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
+short int var15 /* : Bool */;
 static val* varonce;
-val* var21 /* : String */;
-char* var22 /* : NativeString */;
+val* var16 /* : String */;
+char* var17 /* : NativeString */;
+val* var18 /* : FlatString */;
+short int var19 /* : Bool */;
+short int var21 /* : Bool */;
+short int var22 /* : Bool */;
 long var23 /* : Int */;
-val* var24 /* : FlatString */;
-char var25 /* : Char */;
-short int var26 /* : Bool */;
-short int var28 /* : Bool */;
-short int var29 /* : Bool */;
-long var30 /* : Int */;
-long var31 /* : Int */;
-val* var32 /* : Sequence[Char] */;
-val* var34 /* : Sequence[Char] */;
-char var35 /* : Char */;
-val* var36 /* : nullable Object */;
-val* var37 /* : String */;
-var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
-{
-{ /* Inline string#FlatBuffer#init (var1) on <var1:FlatBuffer> */
+val* var24 /* : SequenceRead[Char] */;
+val* var25 /* : nullable Object */;
+val* var26 /* : String */;
+var1 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-((void (*)(val* self))(var1->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var1) /* init on <var1:FlatBuffer>*/;
-}
-RET_LABEL2:(void)0;
-}
+var2 = standard___standard__Buffer___new(var1);
 }
-var_b = var1;
+var_b = var2;
 {
-{ /* Inline string#FlatBuffer#chars (var_b) on <var_b:FlatBuffer> */
-var5 = var_b->attrs[COLOR_standard__string__FlatBuffer___chars].val; /* _chars on <var_b:FlatBuffer> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1525);
-show_backtrace(1);
-}
-var3 = var5;
-RET_LABEL4:(void)0;
+var3 = ((val*(*)(val* self))(var_b->class->vft[COLOR_standard__string__Text__chars]))(var_b); /* chars on <var_b:Buffer>*/
 }
-}
-var6 = '\'';
 {
-var7 = BOX_standard__Char(var6); /* autobox from Char to nullable Object */
-((void (*)(val* self, val* p0))(var3->class->vft[COLOR_standard__abstract_collection__SimpleCollection__add]))(var3, var7) /* add on <var3:Sequence[Char]>*/;
+var4 = (val*)((long)('\'')<<2|2);
+((void(*)(val* self, val* p0))((((long)var3&3)?class_info[((long)var3&3)]:var3->class)->vft[COLOR_standard__abstract_collection__SimpleCollection__add]))(var3, var4); /* add on <var3:SequenceRead[Char](Sequence[Char])>*/
 }
-var8 = 0;
-var_i = var8;
+var_i = 0l;
 {
-var9 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var5 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var9;
+var_ = var5;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var12 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var12)) {
+var8 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var8)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var13 = var_i < var_;
-var10 = var13;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+var9 = var_i < var_;
+var6 = var9;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
 }
-if (var10){
+if (var6){
 {
-var14 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var10 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var15 = ((val* (*)(val* self, long p0))(var14->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var14, var_i) /* [] on <var14:SequenceRead[Char]>*/;
+var11 = ((val*(*)(val* self, long p0))((((long)var10&3)?class_info[((long)var10&3)]:var10->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var10, var_i); /* [] on <var10:SequenceRead[Char]>*/
 }
-var16 = ((struct instance_standard__Char*)var15)->value; /* autounbox from nullable Object to Char */;
-var_c = var16;
-var17 = '\'';
+var12 = (uint32_t)((long)(var11)>>2);
+var_c = var12;
 {
-{ /* Inline kernel#Char#== (var_c,var17) on <var_c:Char> */
-var20 = var_c == var17;
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\'') on <var_c:Char> */
+var15 = var_c == '\'';
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
 }
-if (var18){
-if (varonce) {
-var21 = varonce;
+if (var13){
+if (likely(varonce!=NULL)) {
+var16 = varonce;
 } else {
-var22 = "\'\\\'\'";
-var23 = 4;
-var24 = standard___standard__NativeString___to_s_with_length(var22, var23);
-var21 = var24;
-varonce = var21;
+var17 = "\'\\\'\'";
+var18 = standard___standard__NativeString___to_s_with_length(var17, 4l);
+var16 = var18;
+varonce = var16;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var21); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var16); /* append on <var_b:Buffer>*/
 }
 } else {
-var25 = '\0';
 {
-{ /* Inline kernel#Char#!= (var_c,var25) on <var_c:Char> */
-var28 = var_c == var25;
-var29 = !var28;
-var26 = var29;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
+{ /* Inline kernel#Char#!= (var_c,'\000') on <var_c:Char> */
+var21 = var_c == '\000';
+var22 = !var21;
+var19 = var22;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
-if (unlikely(!var26)) {
+if (unlikely(!var19)) {
 PRINT_ERROR("Runtime error: %s", "Assert \'without_null_byte\' failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 575);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 622);
+fatal_exit(1);
 }
 {
-standard___standard__FlatBuffer___Buffer__add(var_b, var_c); /* Direct call string#FlatBuffer#add on <var_b:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, var_c); /* add on <var_b:Buffer>*/
 }
 }
-var30 = 1;
 {
-var31 = standard___standard__Int___Discrete__successor(var_i, var30);
+var23 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var31;
+var_i = var23;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
 {
-{ /* Inline string#FlatBuffer#chars (var_b) on <var_b:FlatBuffer> */
-var34 = var_b->attrs[COLOR_standard__string__FlatBuffer___chars].val; /* _chars on <var_b:FlatBuffer> */
-if (unlikely(var34 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1525);
-show_backtrace(1);
-}
-var32 = var34;
-RET_LABEL33:(void)0;
+var24 = ((val*(*)(val* self))(var_b->class->vft[COLOR_standard__string__Text__chars]))(var_b); /* chars on <var_b:Buffer>*/
 }
-}
-var35 = '\'';
 {
-var36 = BOX_standard__Char(var35); /* autobox from Char to nullable Object */
-((void (*)(val* self, val* p0))(var32->class->vft[COLOR_standard__abstract_collection__SimpleCollection__add]))(var32, var36) /* add on <var32:Sequence[Char]>*/;
+var25 = (val*)((long)('\'')<<2|2);
+((void(*)(val* self, val* p0))((((long)var24&3)?class_info[((long)var24&3)]:var24->class)->vft[COLOR_standard__abstract_collection__SimpleCollection__add]))(var24, var25); /* add on <var24:SequenceRead[Char](Sequence[Char])>*/
 }
 {
-var37 = standard___standard__FlatBuffer___Object__to_s(var_b);
+var26 = ((val*(*)(val* self))(var_b->class->vft[COLOR_standard__string__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
 }
-var = var37;
+var = var26;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -2205,350 +2212,312 @@ return var;
 /* method string#Text#escape_to_mk for (self: Text): String */
 val* standard___standard__Text___escape_to_mk(val* self) {
 val* var /* : String */;
-val* var1 /* : FlatBuffer */;
-val* var_b /* var b: FlatBuffer */;
-long var3 /* : Int */;
+val* var1 /* : Buffer */;
+val* var2 /* : Buffer */;
+val* var_b /* var b: Buffer */;
 long var_i /* var i: Int */;
-long var4 /* : Int */;
+long var3 /* : Int */;
 long var_ /* var : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var8 /* : Bool */;
-val* var9 /* : SequenceRead[Char] */;
-val* var10 /* : nullable Object */;
-char var11 /* : Char */;
-char var_c /* var c: Char */;
-char var12 /* : Char */;
+short int var7 /* : Bool */;
+val* var8 /* : SequenceRead[Char] */;
+val* var9 /* : nullable Object */;
+uint32_t var10 /* : Char */;
+uint32_t var_c /* var c: Char */;
+short int var11 /* : Bool */;
 short int var13 /* : Bool */;
-short int var15 /* : Bool */;
 static val* varonce;
-val* var16 /* : String */;
-char* var17 /* : NativeString */;
-long var18 /* : Int */;
-val* var19 /* : FlatString */;
-short int var20 /* : Bool */;
+val* var14 /* : String */;
+char* var15 /* : NativeString */;
+val* var16 /* : FlatString */;
+short int var17 /* : Bool */;
+short int var18 /* : Bool */;
+short int var19 /* : Bool */;
 short int var21 /* : Bool */;
-char var22 /* : Char */;
+short int var_22 /* var : Bool */;
 short int var23 /* : Bool */;
 short int var25 /* : Bool */;
 short int var_26 /* var : Bool */;
-char var27 /* : Char */;
-short int var28 /* : Bool */;
+short int var27 /* : Bool */;
+short int var29 /* : Bool */;
 short int var30 /* : Bool */;
-short int var_31 /* var : Bool */;
-char var32 /* : Char */;
+short int var31 /* : Bool */;
+short int var32 /* : Bool */;
 short int var33 /* : Bool */;
-short int var35 /* : Bool */;
-char var36 /* : Char */;
+long var34 /* : Int */;
+long var36 /* : Int */;
 short int var37 /* : Bool */;
-short int var38 /* : Bool */;
 short int var39 /* : Bool */;
-short int var40 /* : Bool */;
-long var41 /* : Int */;
-long var43 /* : Int */;
-long var44 /* : Int */;
+int cltype40;
+int idtype41;
+const char* var_class_name42;
+short int var43 /* : Bool */;
+short int var_44 /* var : Bool */;
 short int var45 /* : Bool */;
 short int var47 /* : Bool */;
-int cltype48;
-int idtype49;
-const char* var_class_name50;
+short int var_48 /* var : Bool */;
+short int var49 /* : Bool */;
 short int var51 /* : Bool */;
 short int var_52 /* var : Bool */;
-char var53 /* : Char */;
-short int var54 /* : Bool */;
-short int var56 /* : Bool */;
-short int var_57 /* var : Bool */;
-char var58 /* : Char */;
+short int var53 /* : Bool */;
+short int var55 /* : Bool */;
+short int var_56 /* var : Bool */;
+short int var57 /* : Bool */;
 short int var59 /* : Bool */;
-short int var61 /* : Bool */;
-short int var_62 /* var : Bool */;
-char var63 /* : Char */;
-short int var64 /* : Bool */;
-short int var66 /* : Bool */;
-short int var_67 /* var : Bool */;
-char var68 /* : Char */;
-short int var69 /* : Bool */;
-short int var71 /* : Bool */;
-static val* varonce72;
-val* var73 /* : String */;
-char* var74 /* : NativeString */;
-long var75 /* : Int */;
-val* var76 /* : FlatString */;
-long var77 /* : Int */;
-long var79 /* : Int */;
-long var80 /* : Int */;
-short int var81 /* : Bool */;
-val* var82 /* : String */;
-val* var83 /* : Array[Object] */;
-long var84 /* : Int */;
-val* var85 /* : NativeArray[Object] */;
-val* var86 /* : String */;
-long var87 /* : Int */;
-long var88 /* : Int */;
-val* var89 /* : String */;
-var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
-{
-{ /* Inline string#FlatBuffer#init (var1) on <var1:FlatBuffer> */
+val* var61 /* : NativeArray[String] */;
+static val* varonce60;
+static val* varonce62;
+val* var63 /* : String */;
+char* var64 /* : NativeString */;
+val* var65 /* : FlatString */;
+long var66 /* : Int */;
+long var68 /* : Int */;
+val* var69 /* : String */;
+val* var70 /* : String */;
+long var71 /* : Int */;
+val* var72 /* : String */;
+var1 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-((void (*)(val* self))(var1->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var1) /* init on <var1:FlatBuffer>*/;
-}
-RET_LABEL2:(void)0;
-}
+var2 = standard___standard__Buffer___new(var1);
 }
-var_b = var1;
-var3 = 0;
-var_i = var3;
+var_b = var2;
+var_i = 0l;
 {
-var4 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var3 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var4;
+var_ = var3;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var7 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var7)) {
+var6 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var6)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var8 = var_i < var_;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var7 = var_i < var_;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
-if (var5){
+if (var4){
 {
-var9 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var8 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var10 = ((val* (*)(val* self, long p0))(var9->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var9, var_i) /* [] on <var9:SequenceRead[Char]>*/;
+var9 = ((val*(*)(val* self, long p0))((((long)var8&3)?class_info[((long)var8&3)]:var8->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var8, var_i); /* [] on <var8:SequenceRead[Char]>*/
 }
-var11 = ((struct instance_standard__Char*)var10)->value; /* autounbox from nullable Object to Char */;
-var_c = var11;
-var12 = '$';
+var10 = (uint32_t)((long)(var9)>>2);
+var_c = var10;
 {
-{ /* Inline kernel#Char#== (var_c,var12) on <var_c:Char> */
-var15 = var_c == var12;
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+{ /* Inline kernel#Char#== (var_c,'$') on <var_c:Char> */
+var13 = var_c == '$';
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
 }
-if (var13){
-if (varonce) {
-var16 = varonce;
+if (var11){
+if (likely(varonce!=NULL)) {
+var14 = varonce;
 } else {
-var17 = "$$";
-var18 = 2;
-var19 = standard___standard__NativeString___to_s_with_length(var17, var18);
-var16 = var19;
-varonce = var16;
+var15 = "$$";
+var16 = standard___standard__NativeString___to_s_with_length(var15, 2l);
+var14 = var16;
+varonce = var14;
 }
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var16); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var14); /* append on <var_b:Buffer>*/
 }
 } else {
-var22 = ':';
 {
-{ /* Inline kernel#Char#== (var_c,var22) on <var_c:Char> */
-var25 = var_c == var22;
-var23 = var25;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+{ /* Inline kernel#Char#== (var_c,':') on <var_c:Char> */
+var21 = var_c == ':';
+var19 = var21;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
-var_26 = var23;
-if (var23){
-var21 = var_26;
+var_22 = var19;
+if (var19){
+var18 = var_22;
 } else {
-var27 = ' ';
 {
-{ /* Inline kernel#Char#== (var_c,var27) on <var_c:Char> */
-var30 = var_c == var27;
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+{ /* Inline kernel#Char#== (var_c,' ') on <var_c:Char> */
+var25 = var_c == ' ';
+var23 = var25;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
 }
-var21 = var28;
+var18 = var23;
 }
-var_31 = var21;
-if (var21){
-var20 = var_31;
+var_26 = var18;
+if (var18){
+var17 = var_26;
 } else {
-var32 = '#';
 {
-{ /* Inline kernel#Char#== (var_c,var32) on <var_c:Char> */
-var35 = var_c == var32;
-var33 = var35;
-goto RET_LABEL34;
-RET_LABEL34:(void)0;
+{ /* Inline kernel#Char#== (var_c,'#') on <var_c:Char> */
+var29 = var_c == '#';
+var27 = var29;
+goto RET_LABEL28;
+RET_LABEL28:(void)0;
 }
 }
-var20 = var33;
+var17 = var27;
 }
-if (var20){
-var36 = '\\';
+if (var17){
 {
-standard___standard__FlatBuffer___Buffer__add(var_b, var36); /* Direct call string#FlatBuffer#add on <var_b:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, '\\'); /* add on <var_b:Buffer>*/
 }
 {
-standard___standard__FlatBuffer___Buffer__add(var_b, var_c); /* Direct call string#FlatBuffer#add on <var_b:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, var_c); /* add on <var_b:Buffer>*/
 }
 } else {
 {
 { /* Inline kernel#Char#ascii (var_c) on <var_c:Char> */
-var43 = (unsigned char)var_c;
-var41 = var43;
-goto RET_LABEL42;
-RET_LABEL42:(void)0;
+var36 = (long)var_c;
+var34 = var36;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
 }
-var44 = 32;
 {
-{ /* Inline kernel#Int#< (var41,var44) on <var41:Int> */
-/* Covariant cast for argument 0 (i) <var44:Int> isa OTHER */
-/* <var44:Int> isa OTHER */
-var47 = 1; /* easy <var44:Int> isa OTHER*/
-if (unlikely(!var47)) {
-var_class_name50 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name50);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var34,32l) on <var34:Int> */
+/* Covariant cast for argument 0 (i) <32l:Int> isa OTHER */
+/* <32l:Int> isa OTHER */
+var39 = 1; /* easy <32l:Int> isa OTHER*/
+if (unlikely(!var39)) {
+var_class_name42 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name42);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var51 = var41 < var44;
-var45 = var51;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
+var43 = var34 < 32l;
+var37 = var43;
+goto RET_LABEL38;
+RET_LABEL38:(void)0;
 }
 }
-var_52 = var45;
-if (var45){
-var40 = var_52;
+var_44 = var37;
+if (var37){
+var33 = var_44;
 } else {
-var53 = ';';
 {
-{ /* Inline kernel#Char#== (var_c,var53) on <var_c:Char> */
-var56 = var_c == var53;
-var54 = var56;
-goto RET_LABEL55;
-RET_LABEL55:(void)0;
+{ /* Inline kernel#Char#== (var_c,';') on <var_c:Char> */
+var47 = var_c == ';';
+var45 = var47;
+goto RET_LABEL46;
+RET_LABEL46:(void)0;
 }
 }
-var40 = var54;
+var33 = var45;
 }
-var_57 = var40;
-if (var40){
-var39 = var_57;
+var_48 = var33;
+if (var33){
+var32 = var_48;
 } else {
-var58 = '|';
 {
-{ /* Inline kernel#Char#== (var_c,var58) on <var_c:Char> */
-var61 = var_c == var58;
-var59 = var61;
-goto RET_LABEL60;
-RET_LABEL60:(void)0;
+{ /* Inline kernel#Char#== (var_c,'|') on <var_c:Char> */
+var51 = var_c == '|';
+var49 = var51;
+goto RET_LABEL50;
+RET_LABEL50:(void)0;
 }
 }
-var39 = var59;
+var32 = var49;
 }
-var_62 = var39;
-if (var39){
-var38 = var_62;
+var_52 = var32;
+if (var32){
+var31 = var_52;
 } else {
-var63 = '\\';
 {
-{ /* Inline kernel#Char#== (var_c,var63) on <var_c:Char> */
-var66 = var_c == var63;
-var64 = var66;
-goto RET_LABEL65;
-RET_LABEL65:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\\') on <var_c:Char> */
+var55 = var_c == '\\';
+var53 = var55;
+goto RET_LABEL54;
+RET_LABEL54:(void)0;
 }
 }
-var38 = var64;
+var31 = var53;
 }
-var_67 = var38;
-if (var38){
-var37 = var_67;
+var_56 = var31;
+if (var31){
+var30 = var_56;
 } else {
-var68 = '=';
 {
-{ /* Inline kernel#Char#== (var_c,var68) on <var_c:Char> */
-var71 = var_c == var68;
-var69 = var71;
-goto RET_LABEL70;
-RET_LABEL70:(void)0;
+{ /* Inline kernel#Char#== (var_c,'=') on <var_c:Char> */
+var59 = var_c == '=';
+var57 = var59;
+goto RET_LABEL58;
+RET_LABEL58:(void)0;
 }
 }
-var37 = var69;
+var30 = var57;
 }
-if (var37){
-if (varonce72) {
-var73 = varonce72;
+if (var30){
+if (unlikely(varonce60==NULL)) {
+var61 = NEW_standard__NativeArray(2l, &type_standard__NativeArray__standard__String);
+if (likely(varonce62!=NULL)) {
+var63 = varonce62;
+} else {
+var64 = "?";
+var65 = standard___standard__NativeString___to_s_with_length(var64, 1l);
+var63 = var65;
+varonce62 = var63;
+}
+((struct instance_standard__NativeArray*)var61)->values[0]=var63;
 } else {
-var74 = "?";
-var75 = 1;
-var76 = standard___standard__NativeString___to_s_with_length(var74, var75);
-var73 = var76;
-varonce72 = var73;
+var61 = varonce60;
+varonce60 = NULL;
 }
 {
 { /* Inline kernel#Char#ascii (var_c) on <var_c:Char> */
-var79 = (unsigned char)var_c;
-var77 = var79;
-goto RET_LABEL78;
-RET_LABEL78:(void)0;
-}
+var68 = (long)var_c;
+var66 = var68;
+goto RET_LABEL67;
+RET_LABEL67:(void)0;
 }
-var80 = 16;
-var81 = 0;
-{
-var82 = standard__string___Int___to_base(var77, var80, var81);
 }
-var83 = NEW_standard__Array(&type_standard__Array__standard__Object);
-{ /* var83 = array_instance Array[Object] */
-var84 = 2;
-var85 = NEW_standard__NativeArray(var84, &type_standard__NativeArray__standard__Object);
-((struct instance_standard__NativeArray*)var85)->values[0] = (val*) var73;
-((struct instance_standard__NativeArray*)var85)->values[1] = (val*) var82;
 {
-((void (*)(val* self, val* p0, long p1))(var83->class->vft[COLOR_standard__array__Array__with_native]))(var83, var85, var84) /* with_native on <var83:Array[Object]>*/;
-}
+var69 = standard__string___Int___to_base(var66, 16l, 0);
 }
+((struct instance_standard__NativeArray*)var61)->values[1]=var69;
 {
-var86 = ((val* (*)(val* self))(var83->class->vft[COLOR_standard__string__Object__to_s]))(var83) /* to_s on <var83:Array[Object]>*/;
+var70 = ((val*(*)(val* self))(var61->class->vft[COLOR_standard__string__NativeArray__native_to_s]))(var61); /* native_to_s on <var61:NativeArray[String]>*/
 }
+varonce60 = var61;
 {
-standard___standard__FlatBuffer___Buffer__append(var_b, var86); /* Direct call string#FlatBuffer#append on <var_b:FlatBuffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_standard__string__Buffer__append]))(var_b, var70); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-standard___standard__FlatBuffer___Buffer__add(var_b, var_c); /* Direct call string#FlatBuffer#add on <var_b:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_standard__string__Buffer__add]))(var_b, var_c); /* add on <var_b:Buffer>*/
 }
 }
 }
 }
-var87 = 1;
 {
-var88 = standard___standard__Int___Discrete__successor(var_i, var87);
+var71 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var88;
+var_i = var71;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
 {
-var89 = standard___standard__FlatBuffer___Object__to_s(var_b);
+var72 = ((val*(*)(val* self))(var_b->class->vft[COLOR_standard__string__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
 }
-var = var89;
+var = var72;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -2556,199 +2525,172 @@ return var;
 /* method string#Text#unescape_nit for (self: Text): String */
 val* standard___standard__Text___unescape_nit(val* self) {
 val* var /* : String */;
-val* var1 /* : FlatBuffer */;
+val* var1 /* : Buffer */;
 long var2 /* : Int */;
-val* var_res /* var res: FlatBuffer */;
-short int var3 /* : Bool */;
+val* var3 /* : Buffer */;
+val* var_res /* var res: Buffer */;
 short int var_was_slash /* var was_slash: Bool */;
-long var4 /* : Int */;
 long var_i /* var i: Int */;
-long var5 /* : Int */;
+long var4 /* : Int */;
 long var_ /* var : Int */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var9 /* : Bool */;
-val* var10 /* : SequenceRead[Char] */;
-val* var11 /* : nullable Object */;
-char var12 /* : Char */;
-char var_c /* var c: Char */;
+short int var8 /* : Bool */;
+val* var9 /* : SequenceRead[Char] */;
+val* var10 /* : nullable Object */;
+uint32_t var11 /* : Char */;
+uint32_t var_c /* var c: Char */;
+short int var12 /* : Bool */;
 short int var13 /* : Bool */;
-char var14 /* : Char */;
 short int var15 /* : Bool */;
-short int var17 /* : Bool */;
+short int var16 /* : Bool */;
 short int var18 /* : Bool */;
 short int var19 /* : Bool */;
-char var20 /* : Char */;
 short int var21 /* : Bool */;
-short int var23 /* : Bool */;
-char var24 /* : Char */;
-char var25 /* : Char */;
-short int var26 /* : Bool */;
-short int var28 /* : Bool */;
-char var29 /* : Char */;
-char var30 /* : Char */;
-short int var31 /* : Bool */;
-short int var33 /* : Bool */;
-char var34 /* : Char */;
-char var35 /* : Char */;
-short int var36 /* : Bool */;
-short int var38 /* : Bool */;
-char var39 /* : Char */;
-long var40 /* : Int */;
-long var41 /* : Int */;
-val* var43 /* : String */;
-var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
+short int var22 /* : Bool */;
+short int var24 /* : Bool */;
+short int var25 /* : Bool */;
+short int var27 /* : Bool */;
+long var28 /* : Int */;
+val* var30 /* : String */;
+var1 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-var2 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var2 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-standard___standard__FlatBuffer___with_capacity(var1, var2); /* Direct call string#FlatBuffer#with_capacity on <var1:FlatBuffer>*/
+var3 = standard___standard__Buffer___with_cap(var1, var2);
 }
-var_res = var1;
-var3 = 0;
-var_was_slash = var3;
-var4 = 0;
-var_i = var4;
+var_res = var3;
+var_was_slash = 0;
+var_i = 0l;
 {
-var5 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var4 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var5;
+var_ = var4;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var8 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var8)) {
+var7 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var7)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var9 = var_i < var_;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var8 = var_i < var_;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-if (var6){
+if (var5){
 {
-var10 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var9 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var11 = ((val* (*)(val* self, long p0))(var10->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var10, var_i) /* [] on <var10:SequenceRead[Char]>*/;
+var10 = ((val*(*)(val* self, long p0))((((long)var9&3)?class_info[((long)var9&3)]:var9->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var9, var_i); /* [] on <var9:SequenceRead[Char]>*/
 }
-var12 = ((struct instance_standard__Char*)var11)->value; /* autounbox from nullable Object to Char */;
-var_c = var12;
-var13 = !var_was_slash;
-if (var13){
-var14 = '\\';
+var11 = (uint32_t)((long)(var10)>>2);
+var_c = var11;
+var12 = !var_was_slash;
+if (var12){
 {
-{ /* Inline kernel#Char#== (var_c,var14) on <var_c:Char> */
-var17 = var_c == var14;
-var15 = var17;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
+{ /* Inline kernel#Char#== (var_c,'\\') on <var_c:Char> */
+var15 = var_c == '\\';
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
 }
-if (var15){
-var18 = 1;
-var_was_slash = var18;
+if (var13){
+var_was_slash = 1;
 } else {
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var_c); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
 }
 goto BREAK_label;
 } else {
 }
-var19 = 0;
-var_was_slash = var19;
-var20 = 'n';
+var_was_slash = 0;
 {
-{ /* Inline kernel#Char#== (var_c,var20) on <var_c:Char> */
-var23 = var_c == var20;
-var21 = var23;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+{ /* Inline kernel#Char#== (var_c,'n') on <var_c:Char> */
+var18 = var_c == 'n';
+var16 = var18;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
 }
 }
-if (var21){
-var24 = '\n';
+if (var16){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var24); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, '\n'); /* add on <var_res:Buffer>*/
 }
 } else {
-var25 = 'r';
 {
-{ /* Inline kernel#Char#== (var_c,var25) on <var_c:Char> */
-var28 = var_c == var25;
-var26 = var28;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
+{ /* Inline kernel#Char#== (var_c,'r') on <var_c:Char> */
+var21 = var_c == 'r';
+var19 = var21;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
-if (var26){
-var29 = '\15';
+if (var19){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var29); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, '\015'); /* add on <var_res:Buffer>*/
 }
 } else {
-var30 = 't';
 {
-{ /* Inline kernel#Char#== (var_c,var30) on <var_c:Char> */
-var33 = var_c == var30;
-var31 = var33;
-goto RET_LABEL32;
-RET_LABEL32:(void)0;
+{ /* Inline kernel#Char#== (var_c,'t') on <var_c:Char> */
+var24 = var_c == 't';
+var22 = var24;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
-if (var31){
-var34 = '\11';
+if (var22){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var34); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, '\t'); /* add on <var_res:Buffer>*/
 }
 } else {
-var35 = '0';
 {
-{ /* Inline kernel#Char#== (var_c,var35) on <var_c:Char> */
-var38 = var_c == var35;
-var36 = var38;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
+{ /* Inline kernel#Char#== (var_c,'0') on <var_c:Char> */
+var27 = var_c == '0';
+var25 = var27;
+goto RET_LABEL26;
+RET_LABEL26:(void)0;
 }
 }
-if (var36){
-var39 = '\0';
+if (var25){
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var39); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, '\000'); /* add on <var_res:Buffer>*/
 }
 } else {
 {
-standard___standard__FlatBuffer___Buffer__add(var_res, var_c); /* Direct call string#FlatBuffer#add on <var_res:FlatBuffer>*/
+((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_standard__string__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
 }
 }
 }
 }
 BREAK_label: (void)0;
-var40 = 1;
 {
-var41 = standard___standard__Int___Discrete__successor(var_i, var40);
+var28 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var41;
+var_i = var28;
 } else {
-goto BREAK_label42;
+goto BREAK_label29;
 }
 }
-BREAK_label42: (void)0;
+BREAK_label29: (void)0;
 {
-var43 = standard___standard__FlatBuffer___Object__to_s(var_res);
+var30 = ((val*(*)(val* self))(var_res->class->vft[COLOR_standard__string__Object__to_s]))(var_res); /* to_s on <var_res:Buffer>*/
 }
-var = var43;
+var = var30;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -2757,104 +2699,94 @@ return var;
 short int standard___standard__Text___standard__kernel__Object___61d_61d(val* self, val* p0) {
 short int var /* : Bool */;
 val* var_o /* var o: nullable Object */;
-val* var1 /* : null */;
+short int var1 /* : Bool */;
 short int var2 /* : Bool */;
 short int var3 /* : Bool */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
 int cltype;
 int idtype;
-short int var6 /* : Bool */;
+short int var4 /* : Bool */;
+short int var5 /* : Bool */;
 short int var7 /* : Bool */;
-short int var8 /* : Bool */;
+long var8 /* : Int */;
+long var9 /* : Int */;
 short int var10 /* : Bool */;
-short int var11 /* : Bool */;
-long var12 /* : Int */;
-long var13 /* : Int */;
-short int var14 /* : Bool */;
+short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+val* var14 /* : SequenceRead[Char] */;
+val* var15 /* : SequenceRead[Char] */;
 short int var16 /* : Bool */;
-short int var17 /* : Bool */;
-short int var18 /* : Bool */;
-val* var19 /* : SequenceRead[Char] */;
-val* var20 /* : SequenceRead[Char] */;
-short int var21 /* : Bool */;
 var_o = p0;
-var1 = NULL;
 if (var_o == NULL) {
-var2 = 1; /* is null */
+var1 = 1; /* is null */
 } else {
-var2 = 0; /* arg is null but recv is not */
+var1 = 0; /* arg is null but recv is not */
 }
 if (0) {
-var3 = ((short int (*)(val* self, val* p0))(var_o->class->vft[COLOR_standard__kernel__Object___61d_61d]))(var_o, var1) /* == on <var_o:nullable Object>*/;
-var2 = var3;
+var2 = ((short int(*)(val* self, val* p0))((((long)var_o&3)?class_info[((long)var_o&3)]:var_o->class)->vft[COLOR_standard__kernel__Object___61d_61d]))(var_o, ((val*)NULL)); /* == on <var_o:nullable Object>*/
+var1 = var2;
 }
-if (var2){
-var4 = 0;
-var = var4;
+if (var1){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 /* <var_o:nullable Object(Object)> isa Text */
 cltype = type_standard__Text.color;
 idtype = type_standard__Text.id;
-if(cltype >= var_o->type->table_size) {
-var5 = 0;
+if(cltype >= (((long)var_o&3)?type_info[((long)var_o&3)]:var_o->type)->table_size) {
+var3 = 0;
 } else {
-var5 = var_o->type->type_table[cltype] == idtype;
+var3 = (((long)var_o&3)?type_info[((long)var_o&3)]:var_o->type)->type_table[cltype] == idtype;
 }
-var6 = !var5;
-if (var6){
-var7 = 0;
-var = var7;
+var4 = !var3;
+if (var4){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
 { /* Inline kernel#Object#is_same_instance (self,var_o) on <self:Text> */
-var10 = self == var_o;
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var7 = self == var_o;
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-if (var8){
-var11 = 1;
-var = var11;
+if (var5){
+var = 1;
 goto RET_LABEL;
 } else {
 }
 {
-var12 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var8 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-var13 = ((long (*)(val* self))(var_o->class->vft[COLOR_standard__string__Text__length]))(var_o) /* length on <var_o:nullable Object(Text)>*/;
+var9 = ((long(*)(val* self))(var_o->class->vft[COLOR_standard__string__Text__length]))(var_o); /* length on <var_o:nullable Object(Text)>*/
 }
 {
-{ /* Inline kernel#Int#!= (var12,var13) on <var12:Int> */
-var16 = var12 == var13;
-var17 = !var16;
-var14 = var17;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+{ /* Inline kernel#Int#!= (var8,var9) on <var8:Int> */
+var12 = var8 == var9;
+var13 = !var12;
+var10 = var13;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-if (var14){
-var18 = 0;
-var = var18;
+if (var10){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
-var19 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var14 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var20 = ((val* (*)(val* self))(var_o->class->vft[COLOR_standard__string__Text__chars]))(var_o) /* chars on <var_o:nullable Object(Text)>*/;
+var15 = ((val*(*)(val* self))(var_o->class->vft[COLOR_standard__string__Text__chars]))(var_o); /* chars on <var_o:nullable Object(Text)>*/
 }
 {
-var21 = ((short int (*)(val* self, val* p0))(var19->class->vft[COLOR_standard__kernel__Object___61d_61d]))(var19, var20) /* == on <var19:SequenceRead[Char]>*/;
+var16 = ((short int(*)(val* self, val* p0))((((long)var14&3)?class_info[((long)var14&3)]:var14->class)->vft[COLOR_standard__kernel__Object___61d_61d]))(var14, var15); /* == on <var14:SequenceRead[Char]>*/
 }
-var = var21;
+var = var16;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -2885,24 +2817,20 @@ short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
 const char* var_class_name16;
-char var17 /* : Char */;
-char var18 /* : Char */;
+uint32_t var17 /* : Char */;
+uint32_t var18 /* : Char */;
 short int var19 /* : Bool */;
-short int var20 /* : Bool */;
+val* var20 /* : nullable Object */;
 val* var21 /* : nullable Object */;
-val* var22 /* : nullable Object */;
-short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
-char var29 /* : Char */;
-char var30 /* : Char */;
+short int var22 /* : Bool */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+const char* var_class_name27;
+uint32_t var28 /* : Char */;
+uint32_t var29 /* : Char */;
+short int var30 /* : Bool */;
 short int var31 /* : Bool */;
-short int var32 /* : Bool */;
-short int var33 /* : Bool */;
-short int var34 /* : Bool */;
-short int var35 /* : Bool */;
 /* Covariant cast for argument 0 (other) <p0:Text> isa OTHER */
 /* <p0:Text> isa OTHER */
 type_struct = self->type->resolution_table->types[COLOR_standard__kernel__Comparable__OTHER];
@@ -2916,32 +2844,32 @@ var1 = p0->type->type_table[cltype] == idtype;
 if (unlikely(!var1)) {
 var_class_name = p0 == NULL ? "null" : p0->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 763);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 810);
+fatal_exit(1);
 }
 var_other = p0;
 {
-var2 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var2 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var3 = ((val* (*)(val* self))(var2->class->vft[COLOR_standard__abstract_collection__Collection__iterator]))(var2) /* iterator on <var2:SequenceRead[Char]>*/;
+var3 = ((val*(*)(val* self))((((long)var2&3)?class_info[((long)var2&3)]:var2->class)->vft[COLOR_standard__abstract_collection__Collection__iterator]))(var2); /* iterator on <var2:SequenceRead[Char]>*/
 }
 var_self_chars = var3;
 {
-var4 = ((val* (*)(val* self))(var_other->class->vft[COLOR_standard__string__Text__chars]))(var_other) /* chars on <var_other:Text>*/;
+var4 = ((val*(*)(val* self))(var_other->class->vft[COLOR_standard__string__Text__chars]))(var_other); /* chars on <var_other:Text>*/
 }
 {
-var5 = ((val* (*)(val* self))(var4->class->vft[COLOR_standard__abstract_collection__Collection__iterator]))(var4) /* iterator on <var4:SequenceRead[Char]>*/;
+var5 = ((val*(*)(val* self))((((long)var4&3)?class_info[((long)var4&3)]:var4->class)->vft[COLOR_standard__abstract_collection__Collection__iterator]))(var4); /* iterator on <var4:SequenceRead[Char]>*/
 }
 var_other_chars = var5;
 for(;;) {
 {
-var7 = ((short int (*)(val* self))(var_self_chars->class->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_self_chars) /* is_ok on <var_self_chars:IndexedIterator[Char]>*/;
+var7 = ((short int(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_self_chars&3)]:var_self_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_self_chars); /* is_ok on <var_self_chars:IndexedIterator[Char]>*/
 }
 var_ = var7;
 if (var7){
 {
-var8 = ((short int (*)(val* self))(var_other_chars->class->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_other_chars) /* is_ok on <var_other_chars:IndexedIterator[Char]>*/;
+var8 = ((short int(*)(val* self))((((long)var_other_chars&3)?class_info[((long)var_other_chars&3)]:var_other_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_other_chars); /* is_ok on <var_other_chars:IndexedIterator[Char]>*/
 }
 var6 = var8;
 } else {
@@ -2949,10 +2877,10 @@ var6 = var_;
 }
 if (var6){
 {
-var9 = ((val* (*)(val* self))(var_self_chars->class->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_self_chars) /* item on <var_self_chars:IndexedIterator[Char]>*/;
+var9 = ((val*(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_self_chars&3)]:var_self_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_self_chars); /* item on <var_self_chars:IndexedIterator[Char]>*/
 }
 {
-var10 = ((val* (*)(val* self))(var_other_chars->class->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_other_chars) /* item on <var_other_chars:IndexedIterator[Char]>*/;
+var10 = ((val*(*)(val* self))((((long)var_other_chars&3)?class_info[((long)var_other_chars&3)]:var_other_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_other_chars); /* item on <var_other_chars:IndexedIterator[Char]>*/
 }
 {
 { /* Inline kernel#Char#< (var9,var10) on <var9:nullable Object(Char)> */
@@ -2960,13 +2888,13 @@ var10 = ((val* (*)(val* self))(var_other_chars->class->vft[COLOR_standard__abstr
 /* <var10:nullable Object(Char)> isa OTHER */
 var13 = 1; /* easy <var10:nullable Object(Char)> isa OTHER*/
 if (unlikely(!var13)) {
-var_class_name16 = var10 == NULL ? "null" : var10->type->name;
+var_class_name16 = var10 == NULL ? "null" : (((long)var10&3)?type_info[((long)var10&3)]:var10->type)->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 592);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 723);
+fatal_exit(1);
 }
-var17 = ((struct instance_standard__Char*)var9)->value; /* autounbox from nullable Object to Char */;
-var18 = ((struct instance_standard__Char*)var10)->value; /* autounbox from nullable Object to Char */;
+var17 = (uint32_t)((long)(var9)>>2);
+var18 = (uint32_t)((long)(var10)>>2);
 var19 = var17 < var18;
 var11 = var19;
 goto RET_LABEL12;
@@ -2974,47 +2902,45 @@ RET_LABEL12:(void)0;
 }
 }
 if (var11){
-var20 = 1;
-var = var20;
+var = 1;
 goto RET_LABEL;
 } else {
 }
 {
-var21 = ((val* (*)(val* self))(var_self_chars->class->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_self_chars) /* item on <var_self_chars:IndexedIterator[Char]>*/;
+var20 = ((val*(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_self_chars&3)]:var_self_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_self_chars); /* item on <var_self_chars:IndexedIterator[Char]>*/
 }
 {
-var22 = ((val* (*)(val* self))(var_other_chars->class->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_other_chars) /* item on <var_other_chars:IndexedIterator[Char]>*/;
+var21 = ((val*(*)(val* self))((((long)var_other_chars&3)?class_info[((long)var_other_chars&3)]:var_other_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__item]))(var_other_chars); /* item on <var_other_chars:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Char#> (var21,var22) on <var21:nullable Object(Char)> */
-/* Covariant cast for argument 0 (i) <var22:nullable Object(Char)> isa OTHER */
-/* <var22:nullable Object(Char)> isa OTHER */
-var25 = 1; /* easy <var22:nullable Object(Char)> isa OTHER*/
-if (unlikely(!var25)) {
-var_class_name28 = var22 == NULL ? "null" : var22->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 594);
-show_backtrace(1);
+{ /* Inline kernel#Char#> (var20,var21) on <var20:nullable Object(Char)> */
+/* Covariant cast for argument 0 (i) <var21:nullable Object(Char)> isa OTHER */
+/* <var21:nullable Object(Char)> isa OTHER */
+var24 = 1; /* easy <var21:nullable Object(Char)> isa OTHER*/
+if (unlikely(!var24)) {
+var_class_name27 = var21 == NULL ? "null" : (((long)var21&3)?type_info[((long)var21&3)]:var21->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 725);
+fatal_exit(1);
 }
-var29 = ((struct instance_standard__Char*)var21)->value; /* autounbox from nullable Object to Char */;
-var30 = ((struct instance_standard__Char*)var22)->value; /* autounbox from nullable Object to Char */;
-var31 = var29 > var30;
-var23 = var31;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+var28 = (uint32_t)((long)(var20)>>2);
+var29 = (uint32_t)((long)(var21)>>2);
+var30 = var28 > var29;
+var22 = var30;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
-if (var23){
-var32 = 0;
-var = var32;
+if (var22){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
-((void (*)(val* self))(var_self_chars->class->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_self_chars) /* next on <var_self_chars:IndexedIterator[Char]>*/;
+((void(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_self_chars&3)]:var_self_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_self_chars); /* next on <var_self_chars:IndexedIterator[Char]>*/
 }
 {
-((void (*)(val* self))(var_other_chars->class->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_other_chars) /* next on <var_other_chars:IndexedIterator[Char]>*/;
+((void(*)(val* self))((((long)var_other_chars&3)?class_info[((long)var_other_chars&3)]:var_other_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__next]))(var_other_chars); /* next on <var_other_chars:IndexedIterator[Char]>*/
 }
 } else {
 goto BREAK_label;
@@ -3022,15 +2948,13 @@ goto BREAK_label;
 }
 BREAK_label: (void)0;
 {
-var33 = ((short int (*)(val* self))(var_self_chars->class->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_self_chars) /* is_ok on <var_self_chars:IndexedIterator[Char]>*/;
+var31 = ((short int(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_self_chars&3)]:var_self_chars->class)->vft[COLOR_standard__abstract_collection__Iterator__is_ok]))(var_self_chars); /* is_ok on <var_self_chars:IndexedIterator[Char]>*/
 }
-if (var33){
-var34 = 0;
-var = var34;
+if (var31){
+var = 0;
 goto RET_LABEL;
 } else {
-var35 = 1;
-var = var35;
+var = 1;
 goto RET_LABEL;
 }
 RET_LABEL:;
@@ -3055,49 +2979,44 @@ long standard___standard__Text___standard__kernel__Object__hash(val* self) {
 long var /* : Int */;
 val* var1 /* : nullable Int */;
 val* var3 /* : nullable Int */;
-val* var4 /* : null */;
+short int var4 /* : Bool */;
 short int var5 /* : Bool */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
-long var9 /* : Int */;
+short int var7 /* : Bool */;
 long var_h /* var h: Int */;
-long var10 /* : Int */;
 long var_i /* var i: Int */;
-long var11 /* : Int */;
+long var8 /* : Int */;
 long var_ /* var : Int */;
-short int var12 /* : Bool */;
-short int var14 /* : Bool */;
+short int var9 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var15 /* : Bool */;
-val* var16 /* : SequenceRead[Char] */;
-val* var17 /* : nullable Object */;
-char var18 /* : Char */;
-char var_char /* var char: Char */;
+short int var12 /* : Bool */;
+val* var13 /* : SequenceRead[Char] */;
+val* var14 /* : nullable Object */;
+uint32_t var15 /* : Char */;
+uint32_t var_char /* var char: Char */;
+long var16 /* : Int */;
+long var18 /* : Int */;
 long var19 /* : Int */;
-long var20 /* : Int */;
-long var22 /* : Int */;
-long var23 /* : Int */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+const char* var_class_name24;
+long var25 /* : Int */;
+long var26 /* : Int */;
+long var28 /* : Int */;
 long var29 /* : Int */;
-long var30 /* : Int */;
-long var32 /* : Int */;
-long var33 /* : Int */;
-short int var35 /* : Bool */;
-int cltype36;
-int idtype37;
-const char* var_class_name38;
-long var39 /* : Int */;
-long var40 /* : Int */;
-long var41 /* : Int */;
-val* var43 /* : nullable Int */;
-val* var44 /* : nullable Int */;
-val* var46 /* : nullable Int */;
-long var47 /* : Int */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
+const char* var_class_name34;
+long var35 /* : Int */;
+long var36 /* : Int */;
+val* var38 /* : nullable Int */;
+val* var39 /* : nullable Int */;
+val* var41 /* : nullable Int */;
+long var42 /* : Int */;
 {
 { /* Inline string#Text#hash_cache (self) on <self:Text> */
 var3 = self->attrs[COLOR_standard__string__Text___hash_cache].val; /* _hash_cache on <self:Text> */
@@ -3105,114 +3024,109 @@ var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
-var4 = NULL;
 if (var1 == NULL) {
-var5 = 1; /* is null */
+var4 = 1; /* is null */
 } else {
-var5 = 0; /* arg is null but recv is not */
+var4 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Int#== (var1,var4) on <var1:nullable Int> */
-var8 = 0; /* incompatible types Int vs. null; cannot be NULL */
-var6 = var8;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+{ /* Inline kernel#Int#== (var1,((val*)NULL)) on <var1:nullable Int> */
+var7 = 0; /* incompatible types Int vs. null; cannot be NULL */
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
-var5 = var6;
+var4 = var5;
 }
-if (var5){
-var9 = 5381;
-var_h = var9;
-var10 = 0;
-var_i = var10;
+if (var4){
+var_h = 5381l;
+var_i = 0l;
 {
-var11 = ((long (*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self) /* length on <self:Text>*/;
+var8 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var11;
+var_ = var8;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var14 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var14)) {
+var11 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var11)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var15 = var_i < var_;
-var12 = var15;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+var12 = var_i < var_;
+var9 = var12;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
-if (var12){
+if (var9){
 {
-var16 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self) /* chars on <self:Text>*/;
+var13 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var17 = ((val* (*)(val* self, long p0))(var16->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var16, var_i) /* [] on <var16:SequenceRead[Char]>*/;
+var14 = ((val*(*)(val* self, long p0))((((long)var13&3)?class_info[((long)var13&3)]:var13->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var13, var_i); /* [] on <var13:SequenceRead[Char]>*/
 }
-var18 = ((struct instance_standard__Char*)var17)->value; /* autounbox from nullable Object to Char */;
-var_char = var18;
-var19 = 5;
+var15 = (uint32_t)((long)(var14)>>2);
+var_char = var15;
 {
-{ /* Inline kernel#Int#lshift (var_h,var19) on <var_h:Int> */
-var22 = var_h << var19;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+{ /* Inline kernel#Int#lshift (var_h,5l) on <var_h:Int> */
+var18 = var_h << 5l;
+var16 = var18;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var20,var_h) on <var20:Int> */
+{ /* Inline kernel#Int#+ (var16,var_h) on <var16:Int> */
 /* Covariant cast for argument 0 (i) <var_h:Int> isa OTHER */
 /* <var_h:Int> isa OTHER */
-var25 = 1; /* easy <var_h:Int> isa OTHER*/
-if (unlikely(!var25)) {
-var_class_name28 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var21 = 1; /* easy <var_h:Int> isa OTHER*/
+if (unlikely(!var21)) {
+var_class_name24 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var29 = var20 + var_h;
-var23 = var29;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+var25 = var16 + var_h;
+var19 = var25;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
 {
 { /* Inline kernel#Char#ascii (var_char) on <var_char:Char> */
-var32 = (unsigned char)var_char;
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
+var28 = (long)var_char;
+var26 = var28;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var23,var30) on <var23:Int> */
-/* Covariant cast for argument 0 (i) <var30:Int> isa OTHER */
-/* <var30:Int> isa OTHER */
-var35 = 1; /* easy <var30:Int> isa OTHER*/
-if (unlikely(!var35)) {
-var_class_name38 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name38);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var19,var26) on <var19:Int> */
+/* Covariant cast for argument 0 (i) <var26:Int> isa OTHER */
+/* <var26:Int> isa OTHER */
+var31 = 1; /* easy <var26:Int> isa OTHER*/
+if (unlikely(!var31)) {
+var_class_name34 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var39 = var23 + var30;
-var33 = var39;
-goto RET_LABEL34;
-RET_LABEL34:(void)0;
+var35 = var19 + var26;
+var29 = var35;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
 }
-var_h = var33;
-var40 = 1;
+var_h = var29;
 {
-var41 = standard___standard__Int___Discrete__successor(var_i, var40);
+var36 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var41;
+var_i = var36;
 } else {
 goto BREAK_label;
 }
@@ -3220,27 +3134,27 @@ goto BREAK_label;
 BREAK_label: (void)0;
 {
 { /* Inline string#Text#hash_cache= (self,var_h) on <self:Text> */
-var43 = BOX_standard__Int(var_h); /* autobox from Int to nullable Int */
-self->attrs[COLOR_standard__string__Text___hash_cache].val = var43; /* _hash_cache on <self:Text> */
-RET_LABEL42:(void)0;
+var38 = (val*)(var_h<<2|1);
+self->attrs[COLOR_standard__string__Text___hash_cache].val = var38; /* _hash_cache on <self:Text> */
+RET_LABEL37:(void)0;
 }
 }
 } else {
 }
 {
 { /* Inline string#Text#hash_cache (self) on <self:Text> */
-var46 = self->attrs[COLOR_standard__string__Text___hash_cache].val; /* _hash_cache on <self:Text> */
-var44 = var46;
-RET_LABEL45:(void)0;
+var41 = self->attrs[COLOR_standard__string__Text___hash_cache].val; /* _hash_cache on <self:Text> */
+var39 = var41;
+RET_LABEL40:(void)0;
 }
 }
-if (unlikely(var44 == NULL)) {
+if (unlikely(var39 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 812);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 856);
+fatal_exit(1);
 }
-var47 = ((struct instance_standard__Int*)var44)->value; /* autounbox from nullable Int to Int */;
-var = var47;
+var42 = (long)(var39)>>2;
+var = var42;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -3294,8 +3208,8 @@ val* var1 /* : Text */;
 var1 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:StringCharView> */
 if (unlikely(var1 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
@@ -3321,8 +3235,8 @@ var = p0->type->type_table[cltype] == idtype;
 if (unlikely(!var)) {
 var_class_name = p0 == NULL ? "null" : p0->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELFTYPE", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 self->attrs[COLOR_standard__string__StringCharView___target].val = p0; /* _target on <self:StringCharView> */
 RET_LABEL:;
@@ -3338,8 +3252,8 @@ short int var4 /* : Bool */;
 var3 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:StringCharView> */
 if (unlikely(var3 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -3364,15 +3278,15 @@ long var4 /* : Int */;
 var3 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:StringCharView> */
 if (unlikely(var3 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
 {
-var4 = ((long (*)(val* self))(var1->class->vft[COLOR_standard__string__Text__length]))(var1) /* length on <var1:Text>*/;
+var4 = ((long(*)(val* self))(var1->class->vft[COLOR_standard__string__Text__length]))(var1); /* length on <var1:Text>*/
 }
 var = var4;
 goto RET_LABEL;
@@ -3382,13 +3296,11 @@ return var;
 /* method string#StringCharView#iterator for (self: StringCharView): IndexedIterator[Char] */
 val* standard__string___standard__string__StringCharView___standard__abstract_collection__Collection__iterator(val* self) {
 val* var /* : IndexedIterator[Char] */;
-long var1 /* : Int */;
-val* var2 /* : IndexedIterator[nullable Object] */;
-var1 = 0;
+val* var1 /* : IndexedIterator[nullable Object] */;
 {
-var2 = ((val* (*)(val* self, long p0))(self->class->vft[COLOR_standard__abstract_collection__SequenceRead__iterator_from]))(self, var1) /* iterator_from on <self:StringCharView>*/;
+var1 = ((val*(*)(val* self, long p0))(self->class->vft[COLOR_standard__abstract_collection__SequenceRead__iterator_from]))(self, 0l); /* iterator_from on <self:StringCharView>*/
 }
-var = var2;
+var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -3396,7 +3308,7 @@ return var;
 /* method string#StringCharView#init for (self: StringCharView) */
 void standard__string___standard__string__StringCharView___standard__kernel__Object__init(val* self) {
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__StringCharView___standard__kernel__Object__init]))(self) /* init on <self:StringCharView>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__StringCharView___standard__kernel__Object__init]))(self); /* init on <self:StringCharView>*/
 }
 RET_LABEL:;
 }
@@ -3408,6 +3320,246 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
+/* method string#String#to_snake_case for (self: String): String */
+val* standard___standard__String___to_snake_case(val* self) {
+val* var /* : String */;
+short int var1 /* : Bool */;
+val* var2 /* : Buffer */;
+long var3 /* : Int */;
+val* var4 /* : Buffer */;
+val* var_new_str /* var new_str: Buffer */;
+short int var_prev_is_lower /* var prev_is_lower: Bool */;
+short int var_prev_is_upper /* var prev_is_upper: Bool */;
+long var_i /* var i: Int */;
+long var5 /* : Int */;
+long var_ /* var : Int */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+short int var9 /* : Bool */;
+val* var10 /* : SequenceRead[Char] */;
+val* var11 /* : nullable Object */;
+uint32_t var12 /* : Char */;
+uint32_t var_char /* var char: Char */;
+short int var13 /* : Bool */;
+short int var14 /* : Bool */;
+short int var15 /* : Bool */;
+short int var16 /* : Bool */;
+short int var_17 /* var : Bool */;
+long var18 /* : Int */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+const char* var_class_name23;
+long var24 /* : Int */;
+long var25 /* : Int */;
+short int var26 /* : Bool */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+const char* var_class_name31;
+short int var32 /* : Bool */;
+short int var_33 /* var : Bool */;
+val* var34 /* : SequenceRead[Char] */;
+long var35 /* : Int */;
+short int var37 /* : Bool */;
+int cltype38;
+int idtype39;
+const char* var_class_name40;
+long var41 /* : Int */;
+val* var42 /* : nullable Object */;
+short int var43 /* : Bool */;
+uint32_t var44 /* : Char */;
+uint32_t var45 /* : Char */;
+long var46 /* : Int */;
+val* var47 /* : String */;
+{
+var1 = standard___standard__Text___is_lower(self);
+}
+if (var1){
+var = self;
+goto RET_LABEL;
+} else {
+}
+var2 = NEW_standard__Buffer(&type_standard__Buffer);
+{
+var3 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:String>*/
+}
+{
+var4 = standard___standard__Buffer___with_cap(var2, var3);
+}
+var_new_str = var4;
+var_prev_is_lower = 0;
+var_prev_is_upper = 0;
+var_i = 0l;
+{
+var5 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:String>*/
+}
+var_ = var5;
+for(;;) {
+{
+{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
+/* <var_:Int> isa OTHER */
+var8 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var8)) {
+var_class_name = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
+}
+var9 = var_i < var_;
+var6 = var9;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
+}
+}
+if (var6){
+{
+var10 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:String>*/
+}
+{
+var11 = ((val*(*)(val* self, long p0))((((long)var10&3)?class_info[((long)var10&3)]:var10->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var10, var_i); /* [] on <var10:SequenceRead[Char]>*/
+}
+var12 = (uint32_t)((long)(var11)>>2);
+var_char = var12;
+{
+var13 = standard___standard__Char___is_lower(var_char);
+}
+if (var13){
+{
+((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_standard__string__Buffer__add]))(var_new_str, var_char); /* add on <var_new_str:Buffer>*/
+}
+var_prev_is_lower = 1;
+var_prev_is_upper = 0;
+} else {
+{
+var14 = standard___standard__Char___is_upper(var_char);
+}
+if (var14){
+if (var_prev_is_lower){
+{
+((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_standard__string__Buffer__add]))(var_new_str, '_'); /* add on <var_new_str:Buffer>*/
+}
+} else {
+var_17 = var_prev_is_upper;
+if (var_prev_is_upper){
+{
+{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var20 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var20)) {
+var_class_name23 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name23);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var24 = var_i + 1l;
+var18 = var24;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
+}
+}
+{
+var25 = ((long(*)(val* self))(self->class->vft[COLOR_standard__string__Text__length]))(self); /* length on <self:String>*/
+}
+{
+{ /* Inline kernel#Int#< (var18,var25) on <var18:Int> */
+/* Covariant cast for argument 0 (i) <var25:Int> isa OTHER */
+/* <var25:Int> isa OTHER */
+var28 = 1; /* easy <var25:Int> isa OTHER*/
+if (unlikely(!var28)) {
+var_class_name31 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name31);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
+}
+var32 = var18 < var25;
+var26 = var32;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
+}
+}
+var16 = var26;
+} else {
+var16 = var_17;
+}
+var_33 = var16;
+if (var16){
+{
+var34 = ((val*(*)(val* self))(self->class->vft[COLOR_standard__string__Text__chars]))(self); /* chars on <self:String>*/
+}
+{
+{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var37 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var37)) {
+var_class_name40 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var41 = var_i + 1l;
+var35 = var41;
+goto RET_LABEL36;
+RET_LABEL36:(void)0;
+}
+}
+{
+var42 = ((val*(*)(val* self, long p0))((((long)var34&3)?class_info[((long)var34&3)]:var34->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var34, var35); /* [] on <var34:SequenceRead[Char]>*/
+}
+{
+var44 = (uint32_t)((long)(var42)>>2);
+var43 = standard___standard__Char___is_lower(var44);
+}
+var15 = var43;
+} else {
+var15 = var_33;
+}
+if (var15){
+{
+((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_standard__string__Buffer__add]))(var_new_str, '_'); /* add on <var_new_str:Buffer>*/
+}
+} else {
+}
+}
+{
+var45 = standard___standard__Char___to_lower(var_char);
+}
+{
+((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_standard__string__Buffer__add]))(var_new_str, var45); /* add on <var_new_str:Buffer>*/
+}
+var_prev_is_lower = 0;
+var_prev_is_upper = 1;
+} else {
+{
+((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_standard__string__Buffer__add]))(var_new_str, var_char); /* add on <var_new_str:Buffer>*/
+}
+var_prev_is_lower = 0;
+var_prev_is_upper = 0;
+}
+}
+{
+var46 = standard___standard__Int___Discrete__successor(var_i, 1l);
+}
+var_i = var46;
+} else {
+goto BREAK_label;
+}
+}
+BREAK_label: (void)0;
+{
+var47 = ((val*(*)(val* self))(var_new_str->class->vft[COLOR_standard__string__Object__to_s]))(var_new_str); /* to_s on <var_new_str:Buffer>*/
+}
+var = var47;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
 /* method string#FlatSubstringsIter#tgt for (self: FlatSubstringsIter): nullable FlatText */
 val* standard__string___standard__string__FlatSubstringsIter___tgt(val* self) {
 val* var /* : nullable FlatText */;
@@ -3433,8 +3585,8 @@ var1 = standard__string___standard__string__FlatSubstringsIter___standard__abstr
 }
 if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1035);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1172);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatSubstringsIter#tgt (self) on <self:FlatSubstringsIter> */
@@ -3445,8 +3597,8 @@ RET_LABEL3:(void)0;
 }
 if (unlikely(var2 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1036);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1173);
+fatal_exit(1);
 }
 var = var2;
 goto RET_LABEL;
@@ -3458,12 +3610,11 @@ short int standard__string___standard__string__FlatSubstringsIter___standard__ab
 short int var /* : Bool */;
 val* var1 /* : nullable FlatText */;
 val* var3 /* : nullable FlatText */;
-val* var4 /* : null */;
+short int var4 /* : Bool */;
 short int var5 /* : Bool */;
-short int var6 /* : Bool */;
 val* var_other /* var other: nullable Object */;
+short int var7 /* : Bool */;
 short int var8 /* : Bool */;
-short int var9 /* : Bool */;
 {
 { /* Inline string#FlatSubstringsIter#tgt (self) on <self:FlatSubstringsIter> */
 var3 = self->attrs[COLOR_standard__string__FlatSubstringsIter___tgt].val; /* _tgt on <self:FlatSubstringsIter> */
@@ -3471,37 +3622,34 @@ var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
-var4 = NULL;
 if (var1 == NULL) {
-var5 = 0; /* is null */
+var4 = 0; /* is null */
 } else {
-var5 = 1; /* arg is null and recv is not */
+var4 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var1,var4) on <var1:nullable FlatText> */
-var_other = var4;
+{ /* Inline kernel#Object#!= (var1,((val*)NULL)) on <var1:nullable FlatText> */
+var_other = ((val*)NULL);
 {
-var8 = ((short int (*)(val* self, val* p0))(var1->class->vft[COLOR_standard__kernel__Object___61d_61d]))(var1, var_other) /* == on <var1:nullable FlatText(FlatText)>*/;
+var7 = ((short int(*)(val* self, val* p0))(var1->class->vft[COLOR_standard__kernel__Object___61d_61d]))(var1, var_other); /* == on <var1:nullable FlatText(FlatText)>*/
 }
-var9 = !var8;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var8 = !var7;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
-var5 = var6;
+var4 = var5;
 }
-var = var5;
+var = var4;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
 /* method string#FlatSubstringsIter#next for (self: FlatSubstringsIter) */
 void standard__string___standard__string__FlatSubstringsIter___standard__abstract_collection__Iterator__next(val* self) {
-val* var /* : null */;
-var = NULL;
 {
-{ /* Inline string#FlatSubstringsIter#tgt= (self,var) on <self:FlatSubstringsIter> */
-self->attrs[COLOR_standard__string__FlatSubstringsIter___tgt].val = var; /* _tgt on <self:FlatSubstringsIter> */
+{ /* Inline string#FlatSubstringsIter#tgt= (self,((val*)NULL)) on <self:FlatSubstringsIter> */
+self->attrs[COLOR_standard__string__FlatSubstringsIter___tgt].val = ((val*)NULL); /* _tgt on <self:FlatSubstringsIter> */
 RET_LABEL1:(void)0;
 }
 }
@@ -3510,7 +3658,7 @@ RET_LABEL:;
 /* method string#FlatSubstringsIter#init for (self: FlatSubstringsIter) */
 void standard__string___standard__string__FlatSubstringsIter___standard__kernel__Object__init(val* self) {
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__FlatSubstringsIter___standard__kernel__Object__init]))(self) /* init on <self:FlatSubstringsIter>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__FlatSubstringsIter___standard__kernel__Object__init]))(self); /* init on <self:FlatSubstringsIter>*/
 }
 RET_LABEL:;
 }
@@ -3545,173 +3693,186 @@ RET_LABEL:;
 /* method string#FlatString#chars for (self: FlatString): SequenceRead[Char] */
 val* standard___standard__FlatString___Text__chars(val* self) {
 val* var /* : SequenceRead[Char] */;
-val* var1 /* : SequenceRead[Char] */;
-var1 = self->attrs[COLOR_standard__string__FlatString___chars].val; /* _chars on <self:FlatString> */
-if (unlikely(var1 == NULL)) {
+short int var1 /* : Bool */;
+val* var2 /* : SequenceRead[Char] */;
+val* var3 /* : FlatStringCharView */;
+var1 = self->attrs[COLOR_standard__string__FlatString___chars].val != NULL; /* _chars on <self:FlatString> */
+if(likely(var1)) {
+var2 = self->attrs[COLOR_standard__string__FlatString___chars].val; /* _chars on <self:FlatString> */
+if (unlikely(var2 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1055);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1192);
+fatal_exit(1);
 }
-var = var1;
+} else {
+var3 = NEW_standard__string__FlatStringCharView(&type_standard__string__FlatStringCharView);
+{
+((void(*)(val* self, val* p0))(var3->class->vft[COLOR_standard__string__StringCharView__target_61d]))(var3, self); /* target= on <var3:FlatStringCharView>*/
+}
+{
+((void(*)(val* self))(var3->class->vft[COLOR_standard__kernel__Object__init]))(var3); /* init on <var3:FlatStringCharView>*/
+}
+self->attrs[COLOR_standard__string__FlatString___chars].val = var3; /* _chars on <self:FlatString> */
+var2 = var3;
+}
+var = var2;
 RET_LABEL:;
 return var;
 }
 /* method string#FlatString#[] for (self: FlatString, Int): Char */
-char standard___standard__FlatString___Text___91d_93d(val* self, long p0) {
-char var /* : Char */;
+uint32_t standard___standard__FlatString___Text___91d_93d(val* self, long p0) {
+uint32_t var /* : Char */;
 long var_index /* var index: Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var5 /* : Bool */;
-long var6 /* : Int */;
+short int var4 /* : Bool */;
+long var5 /* : Int */;
+long var7 /* : Int */;
 long var8 /* : Int */;
-long var9 /* : Int */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-const char* var_class_name14;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+const char* var_class_name13;
+long var14 /* : Int */;
 long var15 /* : Int */;
-long var16 /* : Int */;
-long var18 /* : Int */;
-short int var19 /* : Bool */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-const char* var_class_name24;
-short int var25 /* : Bool */;
-char* var26 /* : NativeString */;
-char* var28 /* : NativeString */;
-long var29 /* : Int */;
+long var17 /* : Int */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+const char* var_class_name23;
+short int var24 /* : Bool */;
+char* var25 /* : NativeString */;
+char* var27 /* : NativeString */;
+long var28 /* : Int */;
+long var30 /* : Int */;
 long var31 /* : Int */;
-long var32 /* : Int */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-long var38 /* : Int */;
-char var39 /* : Char */;
-char var41 /* : Char */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
+long var37 /* : Int */;
+uint32_t var38 /* : Char */;
+uint32_t var40 /* : Char */;
 var_index = p0;
-var1 = 0;
 {
-{ /* Inline kernel#Int#>= (var_index,var1) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_index,0l) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_index >= var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_index >= 0l;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1061);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1198);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var8 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var6 = var8;
-RET_LABEL7:(void)0;
+var7 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var5 = var7;
+RET_LABEL6:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var_index,var6) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
-/* <var6:Int> isa OTHER */
-var11 = 1; /* easy <var6:Int> isa OTHER*/
-if (unlikely(!var11)) {
-var_class_name14 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name14);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_index,var5) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <var5:Int> isa OTHER */
+/* <var5:Int> isa OTHER */
+var10 = 1; /* easy <var5:Int> isa OTHER*/
+if (unlikely(!var10)) {
+var_class_name13 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var15 = var_index + var6;
-var9 = var15;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+var14 = var_index + var5;
+var8 = var14;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var18 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var16 = var18;
-RET_LABEL17:(void)0;
+var17 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#<= (var9,var16) on <var9:Int> */
-/* Covariant cast for argument 0 (i) <var16:Int> isa OTHER */
-/* <var16:Int> isa OTHER */
-var21 = 1; /* easy <var16:Int> isa OTHER*/
-if (unlikely(!var21)) {
-var_class_name24 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+{ /* Inline kernel#Int#<= (var8,var15) on <var8:Int> */
+/* Covariant cast for argument 0 (i) <var15:Int> isa OTHER */
+/* <var15:Int> isa OTHER */
+var20 = 1; /* easy <var15:Int> isa OTHER*/
+if (unlikely(!var20)) {
+var_class_name23 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name23);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var25 = var9 <= var16;
-var19 = var25;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
+var24 = var8 <= var15;
+var18 = var24;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
 }
-if (unlikely(!var19)) {
+if (unlikely(!var18)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1062);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1199);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var28 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var26 = var28;
-RET_LABEL27:(void)0;
+var27 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var25 = var27;
+RET_LABEL26:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var31 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var29 = var31;
-RET_LABEL30:(void)0;
+var30 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var28 = var30;
+RET_LABEL29:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var_index,var29) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var29:Int> isa OTHER */
-/* <var29:Int> isa OTHER */
-var34 = 1; /* easy <var29:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_index,var28) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <var28:Int> isa OTHER */
+/* <var28:Int> isa OTHER */
+var33 = 1; /* easy <var28:Int> isa OTHER*/
+if (unlikely(!var33)) {
+var_class_name36 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var38 = var_index + var29;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+var37 = var_index + var28;
+var31 = var37;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[] (var26,var32) on <var26:NativeString> */
-var41 = var26[var32];
-var39 = var41;
-goto RET_LABEL40;
-RET_LABEL40:(void)0;
+{ /* Inline string#NativeString#[] (var25,var31) on <var25:NativeString> */
+var40 = (uint32_t)(unsigned char)var25[var31];
+var38 = var40;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
 }
-var = var39;
+var = var38;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -3721,395 +3882,377 @@ val* standard___standard__FlatString___Text__substring(val* self, long p0, long
 val* var /* : String */;
 long var_from /* var from: Int */;
 long var_count /* var count: Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
+short int var4 /* : Bool */;
 short int var5 /* : Bool */;
-long var6 /* : Int */;
 short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
-const char* var_class_name12;
-short int var13 /* : Bool */;
-long var14 /* : Int */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-const char* var_class_name19;
-long var20 /* : Int */;
-long var21 /* : Int */;
-short int var22 /* : Bool */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-const char* var_class_name27;
-short int var28 /* : Bool */;
+int cltype8;
+int idtype9;
+const char* var_class_name10;
+short int var11 /* : Bool */;
+long var12 /* : Int */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+const char* var_class_name17;
+long var18 /* : Int */;
+short int var19 /* : Bool */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+const char* var_class_name24;
+short int var25 /* : Bool */;
+long var26 /* : Int */;
+long var28 /* : Int */;
 long var29 /* : Int */;
-long var30 /* : Int */;
-long var31 /* : Int */;
-long var33 /* : Int */;
-long var34 /* : Int */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-const char* var_class_name39;
-long var40 /* : Int */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
+const char* var_class_name34;
+long var35 /* : Int */;
 long var_new_from /* var new_from: Int */;
-long var41 /* : Int */;
-short int var43 /* : Bool */;
-int cltype44;
-int idtype45;
-const char* var_class_name46;
-long var47 /* : Int */;
-long var48 /* : Int */;
-long var50 /* : Int */;
-short int var51 /* : Bool */;
-short int var53 /* : Bool */;
-int cltype54;
-int idtype55;
-const char* var_class_name56;
-short int var57 /* : Bool */;
-long var58 /* : Int */;
-long var60 /* : Int */;
-long var61 /* : Int */;
-short int var63 /* : Bool */;
-int cltype64;
-int idtype65;
-const char* var_class_name66;
-long var67 /* : Int */;
-long var68 /* : Int */;
+long var36 /* : Int */;
+short int var38 /* : Bool */;
+int cltype39;
+int idtype40;
+const char* var_class_name41;
+long var42 /* : Int */;
+long var43 /* : Int */;
+long var45 /* : Int */;
+short int var46 /* : Bool */;
+short int var48 /* : Bool */;
+int cltype49;
+int idtype50;
+const char* var_class_name51;
+short int var52 /* : Bool */;
+long var53 /* : Int */;
+long var55 /* : Int */;
+long var56 /* : Int */;
+short int var58 /* : Bool */;
+int cltype59;
+int idtype60;
+const char* var_class_name61;
+long var62 /* : Int */;
+long var63 /* : Int */;
+short int var65 /* : Bool */;
+int cltype66;
+int idtype67;
+const char* var_class_name68;
 long var69 /* : Int */;
-short int var71 /* : Bool */;
-int cltype72;
-int idtype73;
-const char* var_class_name74;
-long var75 /* : Int */;
 long var_new_len /* var new_len: Int */;
-long var76 /* : Int */;
-short int var77 /* : Bool */;
-short int var79 /* : Bool */;
-int cltype80;
-int idtype81;
-const char* var_class_name82;
-short int var83 /* : Bool */;
-val* var84 /* : String */;
-val* var85 /* : FlatString */;
-char* var86 /* : NativeString */;
-char* var88 /* : NativeString */;
-long var89 /* : Int */;
-long var91 /* : Int */;
-long var92 /* : Int */;
-short int var93 /* : Bool */;
+short int var70 /* : Bool */;
+short int var72 /* : Bool */;
+int cltype73;
+int idtype74;
+const char* var_class_name75;
+short int var76 /* : Bool */;
+val* var77 /* : String */;
+val* var78 /* : FlatString */;
+char* var79 /* : NativeString */;
+char* var81 /* : NativeString */;
+long var82 /* : Int */;
+long var84 /* : Int */;
+short int var85 /* : Bool */;
+short int var87 /* : Bool */;
+int cltype88;
+int idtype89;
+const char* var_class_name90;
+short int var91 /* : Bool */;
+val* var92 /* : String */;
+long var93 /* : Int */;
 short int var95 /* : Bool */;
 int cltype96;
 int idtype97;
 const char* var_class_name98;
-short int var99 /* : Bool */;
-val* var100 /* : String */;
-long var101 /* : Int */;
-short int var103 /* : Bool */;
-int cltype104;
-int idtype105;
-const char* var_class_name106;
-long var107 /* : Int */;
-long var108 /* : Int */;
-long var109 /* : Int */;
-short int var111 /* : Bool */;
-int cltype112;
-int idtype113;
-const char* var_class_name114;
-long var115 /* : Int */;
+long var99 /* : Int */;
+long var100 /* : Int */;
+short int var102 /* : Bool */;
+int cltype103;
+int idtype104;
+const char* var_class_name105;
+long var106 /* : Int */;
 long var_to /* var to: Int */;
-val* var116 /* : FlatString */;
-char* var117 /* : NativeString */;
-char* var119 /* : NativeString */;
-long var120 /* : Int */;
-short int var122 /* : Bool */;
-int cltype123;
-int idtype124;
-const char* var_class_name125;
-long var126 /* : Int */;
-long var127 /* : Int */;
-long var128 /* : Int */;
-short int var130 /* : Bool */;
-int cltype131;
-int idtype132;
-const char* var_class_name133;
-long var134 /* : Int */;
+val* var107 /* : FlatString */;
+char* var108 /* : NativeString */;
+char* var110 /* : NativeString */;
+long var111 /* : Int */;
+short int var113 /* : Bool */;
+int cltype114;
+int idtype115;
+const char* var_class_name116;
+long var117 /* : Int */;
+long var118 /* : Int */;
+short int var120 /* : Bool */;
+int cltype121;
+int idtype122;
+const char* var_class_name123;
+long var124 /* : Int */;
 var_from = p0;
 var_count = p1;
-var1 = 0;
 {
-{ /* Inline kernel#Int#>= (var_count,var1) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_count,0l) on <var_count:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_count >= var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_count >= 0l;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1087);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1226);
+fatal_exit(1);
 }
-var6 = 0;
 {
-{ /* Inline kernel#Int#< (var_from,var6) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
-/* <var6:Int> isa OTHER */
-var9 = 1; /* easy <var6:Int> isa OTHER*/
-if (unlikely(!var9)) {
-var_class_name12 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name12);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_from,0l) on <var_from:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var7 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var7)) {
+var_class_name10 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name10);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var13 = var_from < var6;
-var7 = var13;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var11 = var_from < 0l;
+var5 = var11;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-if (var7){
+if (var5){
 {
 { /* Inline kernel#Int#+ (var_count,var_from) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var16 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var16)) {
-var_class_name19 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name19);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var14 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var14)) {
+var_class_name17 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var20 = var_count + var_from;
-var14 = var20;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+var18 = var_count + var_from;
+var12 = var18;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-var_count = var14;
-var21 = 0;
+var_count = var12;
 {
-{ /* Inline kernel#Int#< (var_count,var21) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var21:Int> isa OTHER */
-/* <var21:Int> isa OTHER */
-var24 = 1; /* easy <var21:Int> isa OTHER*/
-if (unlikely(!var24)) {
-var_class_name27 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_count,0l) on <var_count:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var21 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var21)) {
+var_class_name24 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var28 = var_count < var21;
-var22 = var28;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
+var25 = var_count < 0l;
+var19 = var25;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
-if (var22){
-var29 = 0;
-var_count = var29;
+if (var19){
+var_count = 0l;
 } else {
 }
-var30 = 0;
-var_from = var30;
+var_from = 0l;
 } else {
 }
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var33 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var31 = var33;
-RET_LABEL32:(void)0;
+var28 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var26 = var28;
+RET_LABEL27:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var31,var_from) on <var31:Int> */
+{ /* Inline kernel#Int#+ (var26,var_from) on <var26:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var36 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var36)) {
-var_class_name39 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var40 = var31 + var_from;
-var34 = var40;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
+var31 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var31)) {
+var_class_name34 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var35 = var26 + var_from;
+var29 = var35;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
 }
-var_new_from = var34;
+var_new_from = var29;
 {
 { /* Inline kernel#Int#+ (var_new_from,var_count) on <var_new_from:Int> */
 /* Covariant cast for argument 0 (i) <var_count:Int> isa OTHER */
 /* <var_count:Int> isa OTHER */
-var43 = 1; /* easy <var_count:Int> isa OTHER*/
-if (unlikely(!var43)) {
-var_class_name46 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name46);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var38 = 1; /* easy <var_count:Int> isa OTHER*/
+if (unlikely(!var38)) {
+var_class_name41 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var47 = var_new_from + var_count;
-var41 = var47;
-goto RET_LABEL42;
-RET_LABEL42:(void)0;
+var42 = var_new_from + var_count;
+var36 = var42;
+goto RET_LABEL37;
+RET_LABEL37:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var50 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var48 = var50;
-RET_LABEL49:(void)0;
+var45 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var43 = var45;
+RET_LABEL44:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#> (var41,var48) on <var41:Int> */
-/* Covariant cast for argument 0 (i) <var48:Int> isa OTHER */
-/* <var48:Int> isa OTHER */
-var53 = 1; /* easy <var48:Int> isa OTHER*/
-if (unlikely(!var53)) {
-var_class_name56 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name56);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
-}
-var57 = var41 > var48;
-var51 = var57;
-goto RET_LABEL52;
-RET_LABEL52:(void)0;
+{ /* Inline kernel#Int#> (var36,var43) on <var36:Int> */
+/* Covariant cast for argument 0 (i) <var43:Int> isa OTHER */
+/* <var43:Int> isa OTHER */
+var48 = 1; /* easy <var43:Int> isa OTHER*/
+if (unlikely(!var48)) {
+var_class_name51 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name51);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
+}
+var52 = var36 > var43;
+var46 = var52;
+goto RET_LABEL47;
+RET_LABEL47:(void)0;
 }
 }
-if (var51){
+if (var46){
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var60 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var58 = var60;
-RET_LABEL59:(void)0;
+var55 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var53 = var55;
+RET_LABEL54:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var58,var_new_from) on <var58:Int> */
+{ /* Inline kernel#Int#- (var53,var_new_from) on <var53:Int> */
 /* Covariant cast for argument 0 (i) <var_new_from:Int> isa OTHER */
 /* <var_new_from:Int> isa OTHER */
-var63 = 1; /* easy <var_new_from:Int> isa OTHER*/
-if (unlikely(!var63)) {
-var_class_name66 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name66);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
-}
-var67 = var58 - var_new_from;
-var61 = var67;
-goto RET_LABEL62;
-RET_LABEL62:(void)0;
+var58 = 1; /* easy <var_new_from:Int> isa OTHER*/
+if (unlikely(!var58)) {
+var_class_name61 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name61);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
+}
+var62 = var53 - var_new_from;
+var56 = var62;
+goto RET_LABEL57;
+RET_LABEL57:(void)0;
 }
 }
-var68 = 1;
 {
-{ /* Inline kernel#Int#+ (var61,var68) on <var61:Int> */
-/* Covariant cast for argument 0 (i) <var68:Int> isa OTHER */
-/* <var68:Int> isa OTHER */
-var71 = 1; /* easy <var68:Int> isa OTHER*/
-if (unlikely(!var71)) {
-var_class_name74 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name74);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var56,1l) on <var56:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var65 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var65)) {
+var_class_name68 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name68);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var75 = var61 + var68;
-var69 = var75;
-goto RET_LABEL70;
-RET_LABEL70:(void)0;
+var69 = var56 + 1l;
+var63 = var69;
+goto RET_LABEL64;
+RET_LABEL64:(void)0;
 }
 }
-var_new_len = var69;
-var76 = 0;
+var_new_len = var63;
 {
-{ /* Inline kernel#Int#<= (var_new_len,var76) on <var_new_len:Int> */
-/* Covariant cast for argument 0 (i) <var76:Int> isa OTHER */
-/* <var76:Int> isa OTHER */
-var79 = 1; /* easy <var76:Int> isa OTHER*/
-if (unlikely(!var79)) {
-var_class_name82 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name82);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+{ /* Inline kernel#Int#<= (var_new_len,0l) on <var_new_len:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var72 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var72)) {
+var_class_name75 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name75);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var83 = var_new_len <= var76;
-var77 = var83;
-goto RET_LABEL78;
-RET_LABEL78:(void)0;
+var76 = var_new_len <= 0l;
+var70 = var76;
+goto RET_LABEL71;
+RET_LABEL71:(void)0;
 }
 }
-if (var77){
+if (var70){
 {
-var84 = standard___standard__FlatString___Text__empty(self);
+var77 = standard___standard__FlatString___Text__empty(self);
 }
-var = var84;
+var = var77;
 goto RET_LABEL;
 } else {
 }
-var85 = NEW_standard__FlatString(&type_standard__FlatString);
+var78 = NEW_standard__FlatString(&type_standard__FlatString);
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var88 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var86 = var88;
-RET_LABEL87:(void)0;
+var81 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var79 = var81;
+RET_LABEL80:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var91 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var89 = var91;
-RET_LABEL90:(void)0;
+var84 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var82 = var84;
+RET_LABEL83:(void)0;
 }
 }
 {
-standard___standard__FlatString___with_infos(var85, var86, var_new_len, var_new_from, var89); /* Direct call string#FlatString#with_infos on <var85:FlatString>*/
+standard___standard__FlatString___with_infos(var78, var79, var_new_len, var_new_from, var82); /* Direct call string#FlatString#with_infos on <var78:FlatString>*/
 }
-var = var85;
+var = var78;
 goto RET_LABEL;
 } else {
 }
-var92 = 0;
 {
-{ /* Inline kernel#Int#<= (var_count,var92) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var92:Int> isa OTHER */
-/* <var92:Int> isa OTHER */
-var95 = 1; /* easy <var92:Int> isa OTHER*/
-if (unlikely(!var95)) {
-var_class_name98 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name98);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+{ /* Inline kernel#Int#<= (var_count,0l) on <var_count:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var87 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var87)) {
+var_class_name90 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name90);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var99 = var_count <= var92;
-var93 = var99;
-goto RET_LABEL94;
-RET_LABEL94:(void)0;
+var91 = var_count <= 0l;
+var85 = var91;
+goto RET_LABEL86;
+RET_LABEL86:(void)0;
 }
 }
-if (var93){
+if (var85){
 {
-var100 = standard___standard__FlatString___Text__empty(self);
+var92 = standard___standard__FlatString___Text__empty(self);
 }
-var = var100;
+var = var92;
 goto RET_LABEL;
 } else {
 }
@@ -4117,85 +4260,83 @@ goto RET_LABEL;
 { /* Inline kernel#Int#+ (var_new_from,var_count) on <var_new_from:Int> */
 /* Covariant cast for argument 0 (i) <var_count:Int> isa OTHER */
 /* <var_count:Int> isa OTHER */
-var103 = 1; /* easy <var_count:Int> isa OTHER*/
-if (unlikely(!var103)) {
-var_class_name106 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name106);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var107 = var_new_from + var_count;
-var101 = var107;
-goto RET_LABEL102;
-RET_LABEL102:(void)0;
+var95 = 1; /* easy <var_count:Int> isa OTHER*/
+if (unlikely(!var95)) {
+var_class_name98 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name98);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var99 = var_new_from + var_count;
+var93 = var99;
+goto RET_LABEL94;
+RET_LABEL94:(void)0;
 }
 }
-var108 = 1;
 {
-{ /* Inline kernel#Int#- (var101,var108) on <var101:Int> */
-/* Covariant cast for argument 0 (i) <var108:Int> isa OTHER */
-/* <var108:Int> isa OTHER */
-var111 = 1; /* easy <var108:Int> isa OTHER*/
-if (unlikely(!var111)) {
-var_class_name114 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name114);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+{ /* Inline kernel#Int#- (var93,1l) on <var93:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var102 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var102)) {
+var_class_name105 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name105);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var115 = var101 - var108;
-var109 = var115;
-goto RET_LABEL110;
-RET_LABEL110:(void)0;
+var106 = var93 - 1l;
+var100 = var106;
+goto RET_LABEL101;
+RET_LABEL101:(void)0;
 }
 }
-var_to = var109;
-var116 = NEW_standard__FlatString(&type_standard__FlatString);
+var_to = var100;
+var107 = NEW_standard__FlatString(&type_standard__FlatString);
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var119 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var117 = var119;
-RET_LABEL118:(void)0;
+var110 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var108 = var110;
+RET_LABEL109:(void)0;
 }
 }
 {
 { /* Inline kernel#Int#- (var_to,var_new_from) on <var_to:Int> */
 /* Covariant cast for argument 0 (i) <var_new_from:Int> isa OTHER */
 /* <var_new_from:Int> isa OTHER */
-var122 = 1; /* easy <var_new_from:Int> isa OTHER*/
-if (unlikely(!var122)) {
-var_class_name125 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name125);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+var113 = 1; /* easy <var_new_from:Int> isa OTHER*/
+if (unlikely(!var113)) {
+var_class_name116 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name116);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var126 = var_to - var_new_from;
-var120 = var126;
-goto RET_LABEL121;
-RET_LABEL121:(void)0;
+var117 = var_to - var_new_from;
+var111 = var117;
+goto RET_LABEL112;
+RET_LABEL112:(void)0;
 }
 }
-var127 = 1;
 {
-{ /* Inline kernel#Int#+ (var120,var127) on <var120:Int> */
-/* Covariant cast for argument 0 (i) <var127:Int> isa OTHER */
-/* <var127:Int> isa OTHER */
-var130 = 1; /* easy <var127:Int> isa OTHER*/
-if (unlikely(!var130)) {
-var_class_name133 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name133);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var111,1l) on <var111:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var120 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var120)) {
+var_class_name123 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name123);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var134 = var120 + var127;
-var128 = var134;
-goto RET_LABEL129;
-RET_LABEL129:(void)0;
+var124 = var111 + 1l;
+var118 = var124;
+goto RET_LABEL119;
+RET_LABEL119:(void)0;
 }
 }
 {
-standard___standard__FlatString___with_infos(var116, var117, var128, var_new_from, var_to); /* Direct call string#FlatString#with_infos on <var116:FlatString>*/
+standard___standard__FlatString___with_infos(var107, var108, var118, var_new_from, var_to); /* Direct call string#FlatString#with_infos on <var107:FlatString>*/
 }
-var = var116;
+var = var107;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -4206,34 +4347,32 @@ val* var /* : String */;
 static val* varonce;
 val* var1 /* : String */;
 char* var2 /* : NativeString */;
-long var3 /* : Int */;
-val* var4 /* : FlatString */;
-short int var5 /* : Bool */;
+val* var3 /* : FlatString */;
+short int var4 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-if (varonce) {
+if (likely(varonce!=NULL)) {
 var1 = varonce;
 } else {
 var2 = "";
-var3 = 0;
-var4 = standard___standard__NativeString___to_s_with_length(var2, var3);
-var1 = var4;
+var3 = standard___standard__NativeString___to_s_with_length(var2, 0l);
+var1 = var3;
 varonce = var1;
 }
 /* <var1:String> isa FlatString */
 cltype = type_standard__FlatString.color;
 idtype = type_standard__FlatString.id;
 if(cltype >= var1->type->table_size) {
-var5 = 0;
+var4 = 0;
 } else {
-var5 = var1->type->type_table[cltype] == idtype;
+var4 = var1->type->type_table[cltype] == idtype;
 }
-if (unlikely(!var5)) {
+if (unlikely(!var4)) {
 var_class_name = var1 == NULL ? "null" : var1->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1110);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1249);
+fatal_exit(1);
 }
 var = var1;
 goto RET_LABEL;
@@ -4247,55 +4386,50 @@ char* var1 /* : NativeString */;
 long var2 /* : Int */;
 long var4 /* : Int */;
 long var5 /* : Int */;
-long var6 /* : Int */;
-short int var8 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var9 /* : Int */;
-char* var10 /* : NativeString */;
-char* var12 /* : NativeString */;
+long var8 /* : Int */;
+char* var9 /* : NativeString */;
+char* var11 /* : NativeString */;
 char* var_outstr /* var outstr: NativeString */;
-long var13 /* : Int */;
 long var_out_index /* var out_index: Int */;
+char* var12 /* : NativeString */;
 char* var14 /* : NativeString */;
-char* var16 /* : NativeString */;
 char* var_myitems /* var myitems: NativeString */;
+long var15 /* : Int */;
 long var17 /* : Int */;
-long var19 /* : Int */;
 long var_index_from /* var index_from: Int */;
+long var18 /* : Int */;
 long var20 /* : Int */;
-long var22 /* : Int */;
 long var_max /* var max: Int */;
+short int var21 /* : Bool */;
 short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
-short int var29 /* : Bool */;
-char var30 /* : Char */;
-char var32 /* : Char */;
-char var33 /* : Char */;
-long var35 /* : Int */;
-long var36 /* : Int */;
-short int var38 /* : Bool */;
-int cltype39;
-int idtype40;
-const char* var_class_name41;
-long var42 /* : Int */;
-long var43 /* : Int */;
-long var44 /* : Int */;
-short int var46 /* : Bool */;
-int cltype47;
-int idtype48;
-const char* var_class_name49;
-long var50 /* : Int */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+short int var27 /* : Bool */;
+uint32_t var28 /* : Char */;
+uint32_t var30 /* : Char */;
+uint32_t var31 /* : Char */;
+long var33 /* : Int */;
+short int var35 /* : Bool */;
+int cltype36;
+int idtype37;
+const char* var_class_name38;
+long var39 /* : Int */;
+long var40 /* : Int */;
+short int var42 /* : Bool */;
+int cltype43;
+int idtype44;
+const char* var_class_name45;
+long var46 /* : Int */;
+long var47 /* : Int */;
+long var49 /* : Int */;
 long var51 /* : Int */;
 long var53 /* : Int */;
-char var54 /* : Char */;
-long var56 /* : Int */;
-long var58 /* : Int */;
-val* var59 /* : FlatString */;
+val* var54 /* : FlatString */;
 var1 = NULL/*special!*/;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
@@ -4304,133 +4438,129 @@ var2 = var4;
 RET_LABEL3:(void)0;
 }
 }
-var5 = 1;
 {
-{ /* Inline kernel#Int#+ (var2,var5) on <var2:Int> */
-/* Covariant cast for argument 0 (i) <var5:Int> isa OTHER */
-/* <var5:Int> isa OTHER */
-var8 = 1; /* easy <var5:Int> isa OTHER*/
-if (unlikely(!var8)) {
+{ /* Inline kernel#Int#+ (var2,1l) on <var2:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var7 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var7)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var9 = var2 + var5;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var8 = var2 + 1l;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var1,var6) on <var1:NativeString> */
-var12 = (char*)nit_alloc(var6);
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+{ /* Inline string#NativeString#new (var1,var5) on <var1:NativeString> */
+var11 = (char*)nit_alloc(var5);
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
-var_outstr = var10;
-var13 = 0;
-var_out_index = var13;
+var_outstr = var9;
+var_out_index = 0l;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var16 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var14 = var16;
-RET_LABEL15:(void)0;
+var14 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var12 = var14;
+RET_LABEL13:(void)0;
 }
 }
-var_myitems = var14;
+var_myitems = var12;
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var19 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var17 = var19;
-RET_LABEL18:(void)0;
+var17 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
-var_index_from = var17;
+var_index_from = var15;
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var22 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var20 = var22;
-RET_LABEL21:(void)0;
+var20 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var18 = var20;
+RET_LABEL19:(void)0;
 }
 }
-var_max = var20;
+var_max = var18;
 for(;;) {
 {
 { /* Inline kernel#Int#<= (var_index_from,var_max) on <var_index_from:Int> */
 /* Covariant cast for argument 0 (i) <var_max:Int> isa OTHER */
 /* <var_max:Int> isa OTHER */
-var25 = 1; /* easy <var_max:Int> isa OTHER*/
-if (unlikely(!var25)) {
-var_class_name28 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+var23 = 1; /* easy <var_max:Int> isa OTHER*/
+if (unlikely(!var23)) {
+var_class_name26 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var29 = var_index_from <= var_max;
-var23 = var29;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+var27 = var_index_from <= var_max;
+var21 = var27;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
 }
-if (var23){
+if (var21){
 {
 { /* Inline string#NativeString#[] (var_myitems,var_index_from) on <var_myitems:NativeString> */
-var32 = var_myitems[var_index_from];
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
+var30 = (uint32_t)(unsigned char)var_myitems[var_index_from];
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
 {
-var33 = standard___standard__Char___to_upper(var30);
+var31 = standard___standard__Char___to_upper(var28);
 }
 {
-{ /* Inline string#NativeString#[]= (var_outstr,var_out_index,var33) on <var_outstr:NativeString> */
-var_outstr[var_out_index]=var33;
-RET_LABEL34:(void)0;
+{ /* Inline string#NativeString#[]= (var_outstr,var_out_index,var31) on <var_outstr:NativeString> */
+var_outstr[var_out_index]=(unsigned char)var31;
+RET_LABEL32:(void)0;
 }
 }
-var35 = 1;
 {
-{ /* Inline kernel#Int#+ (var_out_index,var35) on <var_out_index:Int> */
-/* Covariant cast for argument 0 (i) <var35:Int> isa OTHER */
-/* <var35:Int> isa OTHER */
-var38 = 1; /* easy <var35:Int> isa OTHER*/
-if (unlikely(!var38)) {
-var_class_name41 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var42 = var_out_index + var35;
-var36 = var42;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
-}
+{ /* Inline kernel#Int#+ (var_out_index,1l) on <var_out_index:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var35 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var35)) {
+var_class_name38 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name38);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var_out_index = var36;
-var43 = 1;
-{
-{ /* Inline kernel#Int#+ (var_index_from,var43) on <var_index_from:Int> */
-/* Covariant cast for argument 0 (i) <var43:Int> isa OTHER */
-/* <var43:Int> isa OTHER */
-var46 = 1; /* easy <var43:Int> isa OTHER*/
-if (unlikely(!var46)) {
-var_class_name49 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var39 = var_out_index + 1l;
+var33 = var39;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
 }
-var50 = var_index_from + var43;
-var44 = var50;
-goto RET_LABEL45;
-RET_LABEL45:(void)0;
+}
+var_out_index = var33;
+{
+{ /* Inline kernel#Int#+ (var_index_from,1l) on <var_index_from:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var42 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var42)) {
+var_class_name45 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name45);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var46 = var_index_from + 1l;
+var40 = var46;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
 }
-var_index_from = var44;
+var_index_from = var40;
 } else {
 goto BREAK_label;
 }
@@ -4438,29 +4568,28 @@ goto BREAK_label;
 BREAK_label: (void)0;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var53 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var51 = var53;
-RET_LABEL52:(void)0;
+var49 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var47 = var49;
+RET_LABEL48:(void)0;
 }
 }
-var54 = '\0';
 {
-{ /* Inline string#NativeString#[]= (var_outstr,var51,var54) on <var_outstr:NativeString> */
-var_outstr[var51]=var54;
-RET_LABEL55:(void)0;
+{ /* Inline string#NativeString#[]= (var_outstr,var47,'\000') on <var_outstr:NativeString> */
+var_outstr[var47]=(unsigned char)'\000';
+RET_LABEL50:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var58 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var56 = var58;
-RET_LABEL57:(void)0;
+var53 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var51 = var53;
+RET_LABEL52:(void)0;
 }
 }
 {
-var59 = standard___standard__NativeString___to_s_with_length(var_outstr, var56);
+var54 = standard___standard__NativeString___to_s_with_length(var_outstr, var51);
 }
-var = var59;
+var = var54;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -4472,55 +4601,50 @@ char* var1 /* : NativeString */;
 long var2 /* : Int */;
 long var4 /* : Int */;
 long var5 /* : Int */;
-long var6 /* : Int */;
-short int var8 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var9 /* : Int */;
-char* var10 /* : NativeString */;
-char* var12 /* : NativeString */;
+long var8 /* : Int */;
+char* var9 /* : NativeString */;
+char* var11 /* : NativeString */;
 char* var_outstr /* var outstr: NativeString */;
-long var13 /* : Int */;
 long var_out_index /* var out_index: Int */;
+char* var12 /* : NativeString */;
 char* var14 /* : NativeString */;
-char* var16 /* : NativeString */;
 char* var_myitems /* var myitems: NativeString */;
+long var15 /* : Int */;
 long var17 /* : Int */;
-long var19 /* : Int */;
 long var_index_from /* var index_from: Int */;
+long var18 /* : Int */;
 long var20 /* : Int */;
-long var22 /* : Int */;
 long var_max /* var max: Int */;
+short int var21 /* : Bool */;
 short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
-short int var29 /* : Bool */;
-char var30 /* : Char */;
-char var32 /* : Char */;
-char var33 /* : Char */;
-long var35 /* : Int */;
-long var36 /* : Int */;
-short int var38 /* : Bool */;
-int cltype39;
-int idtype40;
-const char* var_class_name41;
-long var42 /* : Int */;
-long var43 /* : Int */;
-long var44 /* : Int */;
-short int var46 /* : Bool */;
-int cltype47;
-int idtype48;
-const char* var_class_name49;
-long var50 /* : Int */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+short int var27 /* : Bool */;
+uint32_t var28 /* : Char */;
+uint32_t var30 /* : Char */;
+uint32_t var31 /* : Char */;
+long var33 /* : Int */;
+short int var35 /* : Bool */;
+int cltype36;
+int idtype37;
+const char* var_class_name38;
+long var39 /* : Int */;
+long var40 /* : Int */;
+short int var42 /* : Bool */;
+int cltype43;
+int idtype44;
+const char* var_class_name45;
+long var46 /* : Int */;
+long var47 /* : Int */;
+long var49 /* : Int */;
 long var51 /* : Int */;
 long var53 /* : Int */;
-char var54 /* : Char */;
-long var56 /* : Int */;
-long var58 /* : Int */;
-val* var59 /* : FlatString */;
+val* var54 /* : FlatString */;
 var1 = NULL/*special!*/;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
@@ -4529,133 +4653,129 @@ var2 = var4;
 RET_LABEL3:(void)0;
 }
 }
-var5 = 1;
 {
-{ /* Inline kernel#Int#+ (var2,var5) on <var2:Int> */
-/* Covariant cast for argument 0 (i) <var5:Int> isa OTHER */
-/* <var5:Int> isa OTHER */
-var8 = 1; /* easy <var5:Int> isa OTHER*/
-if (unlikely(!var8)) {
+{ /* Inline kernel#Int#+ (var2,1l) on <var2:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var7 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var7)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var9 = var2 + var5;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var8 = var2 + 1l;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var1,var6) on <var1:NativeString> */
-var12 = (char*)nit_alloc(var6);
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+{ /* Inline string#NativeString#new (var1,var5) on <var1:NativeString> */
+var11 = (char*)nit_alloc(var5);
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
-var_outstr = var10;
-var13 = 0;
-var_out_index = var13;
+var_outstr = var9;
+var_out_index = 0l;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var16 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var14 = var16;
-RET_LABEL15:(void)0;
+var14 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var12 = var14;
+RET_LABEL13:(void)0;
 }
 }
-var_myitems = var14;
+var_myitems = var12;
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var19 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var17 = var19;
-RET_LABEL18:(void)0;
+var17 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
-var_index_from = var17;
+var_index_from = var15;
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var22 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var20 = var22;
-RET_LABEL21:(void)0;
+var20 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var18 = var20;
+RET_LABEL19:(void)0;
 }
 }
-var_max = var20;
+var_max = var18;
 for(;;) {
 {
 { /* Inline kernel#Int#<= (var_index_from,var_max) on <var_index_from:Int> */
 /* Covariant cast for argument 0 (i) <var_max:Int> isa OTHER */
 /* <var_max:Int> isa OTHER */
-var25 = 1; /* easy <var_max:Int> isa OTHER*/
-if (unlikely(!var25)) {
-var_class_name28 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+var23 = 1; /* easy <var_max:Int> isa OTHER*/
+if (unlikely(!var23)) {
+var_class_name26 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var29 = var_index_from <= var_max;
-var23 = var29;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+var27 = var_index_from <= var_max;
+var21 = var27;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
 }
-if (var23){
+if (var21){
 {
 { /* Inline string#NativeString#[] (var_myitems,var_index_from) on <var_myitems:NativeString> */
-var32 = var_myitems[var_index_from];
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
+var30 = (uint32_t)(unsigned char)var_myitems[var_index_from];
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
 {
-var33 = standard___standard__Char___to_lower(var30);
+var31 = standard___standard__Char___to_lower(var28);
 }
 {
-{ /* Inline string#NativeString#[]= (var_outstr,var_out_index,var33) on <var_outstr:NativeString> */
-var_outstr[var_out_index]=var33;
-RET_LABEL34:(void)0;
+{ /* Inline string#NativeString#[]= (var_outstr,var_out_index,var31) on <var_outstr:NativeString> */
+var_outstr[var_out_index]=(unsigned char)var31;
+RET_LABEL32:(void)0;
 }
 }
-var35 = 1;
 {
-{ /* Inline kernel#Int#+ (var_out_index,var35) on <var_out_index:Int> */
-/* Covariant cast for argument 0 (i) <var35:Int> isa OTHER */
-/* <var35:Int> isa OTHER */
-var38 = 1; /* easy <var35:Int> isa OTHER*/
-if (unlikely(!var38)) {
-var_class_name41 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_out_index,1l) on <var_out_index:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var35 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var35)) {
+var_class_name38 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name38);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var42 = var_out_index + var35;
-var36 = var42;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
+var39 = var_out_index + 1l;
+var33 = var39;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
 }
 }
-var_out_index = var36;
-var43 = 1;
+var_out_index = var33;
 {
-{ /* Inline kernel#Int#+ (var_index_from,var43) on <var_index_from:Int> */
-/* Covariant cast for argument 0 (i) <var43:Int> isa OTHER */
-/* <var43:Int> isa OTHER */
-var46 = 1; /* easy <var43:Int> isa OTHER*/
-if (unlikely(!var46)) {
-var_class_name49 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_index_from,1l) on <var_index_from:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var42 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var42)) {
+var_class_name45 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name45);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var50 = var_index_from + var43;
-var44 = var50;
-goto RET_LABEL45;
-RET_LABEL45:(void)0;
+var46 = var_index_from + 1l;
+var40 = var46;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
 }
-var_index_from = var44;
+var_index_from = var40;
 } else {
 goto BREAK_label;
 }
@@ -4663,29 +4783,28 @@ goto BREAK_label;
 BREAK_label: (void)0;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var53 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var51 = var53;
-RET_LABEL52:(void)0;
+var49 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var47 = var49;
+RET_LABEL48:(void)0;
 }
 }
-var54 = '\0';
 {
-{ /* Inline string#NativeString#[]= (var_outstr,var51,var54) on <var_outstr:NativeString> */
-var_outstr[var51]=var54;
-RET_LABEL55:(void)0;
+{ /* Inline string#NativeString#[]= (var_outstr,var47,'\000') on <var_outstr:NativeString> */
+var_outstr[var47]=(unsigned char)'\000';
+RET_LABEL50:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var58 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var56 = var58;
-RET_LABEL57:(void)0;
+var53 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var51 = var53;
+RET_LABEL52:(void)0;
 }
 }
 {
-var59 = standard___standard__NativeString___to_s_with_length(var_outstr, var56);
+var54 = standard___standard__NativeString___to_s_with_length(var_outstr, var51);
 }
-var = var59;
+var = var54;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -4693,7 +4812,7 @@ return var;
 /* method string#FlatString#with_infos for (self: FlatString, NativeString, Int, Int, Int) */
 void standard___standard__FlatString___with_infos(val* self, char* p0, long p1, long p2, long p3) {
 char* var_items /* var items: NativeString */;
-long var_len /* var len: Int */;
+long var_length /* var length: Int */;
 long var_from /* var from: Int */;
 long var_to /* var to: Int */;
 {
@@ -4702,7 +4821,7 @@ RET_LABEL1:(void)0;
 }
 }
 var_items = p0;
-var_len = p1;
+var_length = p1;
 var_from = p2;
 var_to = p3;
 {
@@ -4712,8 +4831,8 @@ RET_LABEL2:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#length= (self,var_len) on <self:FlatString> */
-self->attrs[COLOR_standard__string__FlatText___length].l = var_len; /* _length on <self:FlatString> */
+{ /* Inline string#FlatText#length= (self,var_length) on <self:FlatString> */
+self->attrs[COLOR_standard__string__FlatText___length].l = var_length; /* _length on <self:FlatString> */
 RET_LABEL3:(void)0;
 }
 }
@@ -4736,42 +4855,38 @@ char* standard___standard__FlatString___Text__to_cstring(val* self) {
 char* var /* : NativeString */;
 val* var1 /* : nullable NativeString */;
 val* var3 /* : nullable NativeString */;
-val* var4 /* : null */;
+short int var4 /* : Bool */;
 short int var5 /* : Bool */;
-short int var6 /* : Bool */;
 val* var_other /* var other: nullable Object */;
-short int var8 /* : Bool */;
-val* var_other10 /* var other: nullable Object */;
-short int var11 /* : Bool */;
+short int var7 /* : Bool */;
+val* var_other9 /* var other: nullable Object */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
 short int var13 /* : Bool */;
-short int var14 /* : Bool */;
-val* var15 /* : nullable NativeString */;
-val* var17 /* : nullable NativeString */;
+val* var14 /* : nullable NativeString */;
+val* var16 /* : nullable NativeString */;
+char* var17 /* : NativeString */;
 char* var18 /* : NativeString */;
-char* var19 /* : NativeString */;
-long var20 /* : Int */;
+long var19 /* : Int */;
+long var21 /* : Int */;
 long var22 /* : Int */;
-long var23 /* : Int */;
-long var24 /* : Int */;
-short int var26 /* : Bool */;
+short int var24 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var27 /* : Int */;
+long var25 /* : Int */;
+char* var26 /* : NativeString */;
 char* var28 /* : NativeString */;
-char* var30 /* : NativeString */;
 char* var_newItems /* var newItems: NativeString */;
+char* var29 /* : NativeString */;
 char* var31 /* : NativeString */;
-char* var33 /* : NativeString */;
+long var32 /* : Int */;
 long var34 /* : Int */;
-long var36 /* : Int */;
+long var35 /* : Int */;
 long var37 /* : Int */;
 long var39 /* : Int */;
-long var40 /* : Int */;
-long var42 /* : Int */;
-long var44 /* : Int */;
-char var45 /* : Char */;
-val* var48 /* : nullable NativeString */;
+long var41 /* : Int */;
+val* var44 /* : nullable NativeString */;
 {
 { /* Inline string#FlatText#real_items (self) on <self:FlatString> */
 var3 = self->attrs[COLOR_standard__string__FlatText___real_items].val; /* _real_items on <self:FlatString> */
@@ -4779,135 +4894,131 @@ var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
-var4 = NULL;
 if (var1 == NULL) {
-var5 = 0; /* is null */
+var4 = 0; /* is null */
 } else {
-var5 = 1; /* arg is null and recv is not */
+var4 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var1,var4) on <var1:nullable NativeString> */
-var_other = var4;
+{ /* Inline kernel#Object#!= (var1,((val*)NULL)) on <var1:nullable NativeString> */
+var_other = ((val*)NULL);
 { /* Inline kernel#Object#== (var1,var_other) on <var1:nullable NativeString(NativeString)> */
-var_other10 = var_other;
+var_other9 = var_other;
 {
-{ /* Inline kernel#Object#is_same_instance (var1,var_other10) on <var1:nullable NativeString(NativeString)> */
-var13 = var1 == var_other10 || (var_other10 != NULL && var1->class == var_other10->class && ((struct instance_standard__NativeString*)var1)->value == ((struct instance_standard__NativeString*)var_other10)->value);
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+{ /* Inline kernel#Object#is_same_instance (var1,var_other9) on <var1:nullable NativeString(NativeString)> */
+var12 = var1 == var_other9 || (var_other9 != NULL && (!((long)var_other9&3)) && var1->class == var_other9->class && ((struct instance_standard__NativeString*)var1)->value == ((struct instance_standard__NativeString*)var_other9)->value);
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-var8 = var11;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var7 = var10;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
-var14 = !var8;
-var6 = var14;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var13 = !var7;
+var5 = var13;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
-var5 = var6;
+var4 = var5;
 }
-if (var5){
+if (var4){
 {
 { /* Inline string#FlatText#real_items (self) on <self:FlatString> */
-var17 = self->attrs[COLOR_standard__string__FlatText___real_items].val; /* _real_items on <self:FlatString> */
-var15 = var17;
-RET_LABEL16:(void)0;
+var16 = self->attrs[COLOR_standard__string__FlatText___real_items].val; /* _real_items on <self:FlatString> */
+var14 = var16;
+RET_LABEL15:(void)0;
 }
 }
-if (unlikely(var15 == NULL)) {
+if (unlikely(var14 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1177);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1319);
+fatal_exit(1);
 }
-var18 = ((struct instance_standard__NativeString*)var15)->value; /* autounbox from nullable NativeString to NativeString */;
-var = var18;
+var17 = ((struct instance_standard__NativeString*)var14)->value; /* autounbox from nullable NativeString to NativeString */;
+var = var17;
 goto RET_LABEL;
 } else {
-var19 = NULL/*special!*/;
+var18 = NULL/*special!*/;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var22 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var20 = var22;
-RET_LABEL21:(void)0;
+var21 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var19 = var21;
+RET_LABEL20:(void)0;
 }
 }
-var23 = 1;
 {
-{ /* Inline kernel#Int#+ (var20,var23) on <var20:Int> */
-/* Covariant cast for argument 0 (i) <var23:Int> isa OTHER */
-/* <var23:Int> isa OTHER */
-var26 = 1; /* easy <var23:Int> isa OTHER*/
-if (unlikely(!var26)) {
+{ /* Inline kernel#Int#+ (var19,1l) on <var19:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var24 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var24)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var27 = var20 + var23;
-var24 = var27;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
+var25 = var19 + 1l;
+var22 = var25;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var19,var24) on <var19:NativeString> */
-var30 = (char*)nit_alloc(var24);
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+{ /* Inline string#NativeString#new (var18,var22) on <var18:NativeString> */
+var28 = (char*)nit_alloc(var22);
+var26 = var28;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
 }
 }
-var_newItems = var28;
+var_newItems = var26;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var33 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var31 = var33;
-RET_LABEL32:(void)0;
+var31 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var29 = var31;
+RET_LABEL30:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var36 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var34 = var36;
-RET_LABEL35:(void)0;
+var34 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var32 = var34;
+RET_LABEL33:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var39 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var37 = var39;
-RET_LABEL38:(void)0;
+var37 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var35 = var37;
+RET_LABEL36:(void)0;
 }
 }
-var40 = 0;
 {
-{ /* Inline string#NativeString#copy_to (var31,var_newItems,var34,var37,var40) on <var31:NativeString> */
-memmove(var_newItems+var40,var31+var37,var34);
-RET_LABEL41:(void)0;
+{ /* Inline string#NativeString#copy_to (var29,var_newItems,var32,var35,0l) on <var29:NativeString> */
+memmove(var_newItems+0l,var29+var35,var32);
+RET_LABEL38:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var44 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var42 = var44;
-RET_LABEL43:(void)0;
+var41 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var39 = var41;
+RET_LABEL40:(void)0;
 }
 }
-var45 = '\0';
 {
-{ /* Inline string#NativeString#[]= (var_newItems,var42,var45) on <var_newItems:NativeString> */
-var_newItems[var42]=var45;
-RET_LABEL46:(void)0;
+{ /* Inline string#NativeString#[]= (var_newItems,var39,'\000') on <var_newItems:NativeString> */
+var_newItems[var39]=(unsigned char)'\000';
+RET_LABEL42:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#real_items= (self,var_newItems) on <self:FlatString> */
-var48 = BOX_standard__NativeString(var_newItems); /* autobox from NativeString to nullable NativeString */
-self->attrs[COLOR_standard__string__FlatText___real_items].val = var48; /* _real_items on <self:FlatString> */
-RET_LABEL47:(void)0;
+var44 = BOX_standard__NativeString(var_newItems); /* autobox from NativeString to nullable NativeString */
+self->attrs[COLOR_standard__string__FlatText___real_items].val = var44; /* _real_items on <self:FlatString> */
+RET_LABEL43:(void)0;
 }
 }
 var = var_newItems;
@@ -4930,65 +5041,59 @@ long var6 /* : Int */;
 long var7 /* : Int */;
 long var9 /* : Int */;
 short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-long var14 /* : Int */;
-long var16 /* : Int */;
+short int var12 /* : Bool */;
+long var13 /* : Int */;
+long var15 /* : Int */;
 long var_my_length /* var my_length: Int */;
-long var17 /* : Int */;
-long var19 /* : Int */;
-short int var20 /* : Bool */;
+long var16 /* : Int */;
+long var18 /* : Int */;
+short int var19 /* : Bool */;
+short int var21 /* : Bool */;
 short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-short int var24 /* : Bool */;
+long var23 /* : Int */;
 long var25 /* : Int */;
-long var27 /* : Int */;
 long var_my_index /* var my_index: Int */;
+long var26 /* : Int */;
 long var28 /* : Int */;
-long var30 /* : Int */;
 long var_its_index /* var its_index: Int */;
-long var31 /* : Int */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
+long var29 /* : Int */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
 const char* var_class_name;
-long var36 /* : Int */;
+long var34 /* : Int */;
 long var_last_iteration /* var last_iteration: Int */;
+char* var35 /* : NativeString */;
 char* var37 /* : NativeString */;
-char* var39 /* : NativeString */;
 char* var_itsitems /* var itsitems: NativeString */;
+char* var38 /* : NativeString */;
 char* var40 /* : NativeString */;
-char* var42 /* : NativeString */;
 char* var_myitems /* var myitems: NativeString */;
+short int var41 /* : Bool */;
 short int var43 /* : Bool */;
-short int var45 /* : Bool */;
-int cltype46;
-int idtype47;
-const char* var_class_name48;
-short int var49 /* : Bool */;
-char var50 /* : Char */;
-char var52 /* : Char */;
-char var53 /* : Char */;
-char var55 /* : Char */;
+int cltype44;
+int idtype45;
+const char* var_class_name46;
+short int var47 /* : Bool */;
+uint32_t var48 /* : Char */;
+uint32_t var50 /* : Char */;
+uint32_t var51 /* : Char */;
+uint32_t var53 /* : Char */;
+short int var54 /* : Bool */;
 short int var56 /* : Bool */;
-short int var58 /* : Bool */;
-short int var59 /* : Bool */;
+short int var57 /* : Bool */;
+long var58 /* : Int */;
 short int var60 /* : Bool */;
-long var61 /* : Int */;
-long var62 /* : Int */;
-short int var64 /* : Bool */;
-int cltype65;
-int idtype66;
-const char* var_class_name67;
-long var68 /* : Int */;
-long var69 /* : Int */;
-long var70 /* : Int */;
-short int var72 /* : Bool */;
-int cltype73;
-int idtype74;
-const char* var_class_name75;
-long var76 /* : Int */;
-short int var77 /* : Bool */;
+int cltype61;
+int idtype62;
+const char* var_class_name63;
+long var64 /* : Int */;
+long var65 /* : Int */;
+short int var67 /* : Bool */;
+int cltype68;
+int idtype69;
+const char* var_class_name70;
+long var71 /* : Int */;
 var_other = p0;
 /* <var_other:nullable Object> isa FlatString */
 cltype = type_standard__FlatString.color;
@@ -4996,16 +5101,16 @@ idtype = type_standard__FlatString.id;
 if(var_other == NULL) {
 var1 = 0;
 } else {
-if(cltype >= var_other->type->table_size) {
+if(cltype >= (((long)var_other&3)?type_info[((long)var_other&3)]:var_other->type)->table_size) {
 var1 = 0;
 } else {
-var1 = var_other->type->type_table[cltype] == idtype;
+var1 = (((long)var_other&3)?type_info[((long)var_other&3)]:var_other->type)->type_table[cltype] == idtype;
 }
 }
 var2 = !var1;
 if (var2){
 {
-var3 = ((short int (*)(val* self, val* p0))(self->class->vft[COLOR_standard___standard__FlatString___standard__kernel__Object___61d_61d]))(self, p0) /* == on <self:FlatString>*/;
+var3 = ((short int(*)(val* self, val* p0))(self->class->vft[COLOR_standard___standard__FlatString___standard__kernel__Object___61d_61d]))(self, p0); /* == on <self:FlatString>*/
 }
 var = var3;
 goto RET_LABEL;
@@ -5036,186 +5141,180 @@ RET_LABEL11:(void)0;
 }
 }
 if (var10){
-var13 = 1;
-var = var13;
+var = 1;
 goto RET_LABEL;
 } else {
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var16 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var14 = var16;
-RET_LABEL15:(void)0;
+var15 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var13 = var15;
+RET_LABEL14:(void)0;
 }
 }
-var_my_length = var14;
+var_my_length = var13;
 {
 { /* Inline string#FlatText#length (var_other) on <var_other:nullable Object(FlatString)> */
-var19 = var_other->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_other:nullable Object(FlatString)> */
-var17 = var19;
-RET_LABEL18:(void)0;
+var18 = var_other->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_other:nullable Object(FlatString)> */
+var16 = var18;
+RET_LABEL17:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#!= (var17,var_my_length) on <var17:Int> */
-var22 = var17 == var_my_length;
-var23 = !var22;
-var20 = var23;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+{ /* Inline kernel#Int#!= (var16,var_my_length) on <var16:Int> */
+var21 = var16 == var_my_length;
+var22 = !var21;
+var19 = var22;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
-if (var20){
-var24 = 0;
-var = var24;
+if (var19){
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var27 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var25 = var27;
-RET_LABEL26:(void)0;
+var25 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var23 = var25;
+RET_LABEL24:(void)0;
 }
 }
-var_my_index = var25;
+var_my_index = var23;
 {
 { /* Inline string#FlatString#index_from (var_other) on <var_other:nullable Object(FlatString)> */
-var30 = var_other->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_other:nullable Object(FlatString)> */
-var28 = var30;
-RET_LABEL29:(void)0;
+var28 = var_other->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_other:nullable Object(FlatString)> */
+var26 = var28;
+RET_LABEL27:(void)0;
 }
 }
-var_its_index = var28;
+var_its_index = var26;
 {
 { /* Inline kernel#Int#+ (var_my_index,var_my_length) on <var_my_index:Int> */
 /* Covariant cast for argument 0 (i) <var_my_length:Int> isa OTHER */
 /* <var_my_length:Int> isa OTHER */
-var33 = 1; /* easy <var_my_length:Int> isa OTHER*/
-if (unlikely(!var33)) {
+var31 = 1; /* easy <var_my_length:Int> isa OTHER*/
+if (unlikely(!var31)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var36 = var_my_index + var_my_length;
-var31 = var36;
-goto RET_LABEL32;
-RET_LABEL32:(void)0;
+var34 = var_my_index + var_my_length;
+var29 = var34;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
 }
-var_last_iteration = var31;
+var_last_iteration = var29;
 {
 { /* Inline string#FlatText#items (var_other) on <var_other:nullable Object(FlatString)> */
-var39 = var_other->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_other:nullable Object(FlatString)> */
-var37 = var39;
-RET_LABEL38:(void)0;
+var37 = var_other->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_other:nullable Object(FlatString)> */
+var35 = var37;
+RET_LABEL36:(void)0;
 }
 }
-var_itsitems = var37;
+var_itsitems = var35;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var42 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var40 = var42;
-RET_LABEL41:(void)0;
+var40 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var38 = var40;
+RET_LABEL39:(void)0;
 }
 }
-var_myitems = var40;
+var_myitems = var38;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_my_index,var_last_iteration) on <var_my_index:Int> */
 /* Covariant cast for argument 0 (i) <var_last_iteration:Int> isa OTHER */
 /* <var_last_iteration:Int> isa OTHER */
-var45 = 1; /* easy <var_last_iteration:Int> isa OTHER*/
-if (unlikely(!var45)) {
-var_class_name48 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+var43 = 1; /* easy <var_last_iteration:Int> isa OTHER*/
+if (unlikely(!var43)) {
+var_class_name46 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name46);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var49 = var_my_index < var_last_iteration;
-var43 = var49;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
+var47 = var_my_index < var_last_iteration;
+var41 = var47;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
 }
-if (var43){
+if (var41){
 {
 { /* Inline string#NativeString#[] (var_myitems,var_my_index) on <var_myitems:NativeString> */
-var52 = var_myitems[var_my_index];
-var50 = var52;
-goto RET_LABEL51;
-RET_LABEL51:(void)0;
+var50 = (uint32_t)(unsigned char)var_myitems[var_my_index];
+var48 = var50;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
 {
 { /* Inline string#NativeString#[] (var_itsitems,var_its_index) on <var_itsitems:NativeString> */
-var55 = var_itsitems[var_its_index];
-var53 = var55;
-goto RET_LABEL54;
-RET_LABEL54:(void)0;
+var53 = (uint32_t)(unsigned char)var_itsitems[var_its_index];
+var51 = var53;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
 }
 }
 {
-{ /* Inline kernel#Char#!= (var50,var53) on <var50:Char> */
-var58 = var50 == var53;
-var59 = !var58;
-var56 = var59;
-goto RET_LABEL57;
-RET_LABEL57:(void)0;
+{ /* Inline kernel#Char#!= (var48,var51) on <var48:Char> */
+var56 = var48 == var51;
+var57 = !var56;
+var54 = var57;
+goto RET_LABEL55;
+RET_LABEL55:(void)0;
 }
 }
-if (var56){
-var60 = 0;
-var = var60;
+if (var54){
+var = 0;
 goto RET_LABEL;
 } else {
 }
-var61 = 1;
 {
-{ /* Inline kernel#Int#+ (var_my_index,var61) on <var_my_index:Int> */
-/* Covariant cast for argument 0 (i) <var61:Int> isa OTHER */
-/* <var61:Int> isa OTHER */
-var64 = 1; /* easy <var61:Int> isa OTHER*/
-if (unlikely(!var64)) {
-var_class_name67 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name67);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_my_index,1l) on <var_my_index:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var60 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var60)) {
+var_class_name63 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var68 = var_my_index + var61;
-var62 = var68;
-goto RET_LABEL63;
-RET_LABEL63:(void)0;
+var64 = var_my_index + 1l;
+var58 = var64;
+goto RET_LABEL59;
+RET_LABEL59:(void)0;
 }
 }
-var_my_index = var62;
-var69 = 1;
+var_my_index = var58;
 {
-{ /* Inline kernel#Int#+ (var_its_index,var69) on <var_its_index:Int> */
-/* Covariant cast for argument 0 (i) <var69:Int> isa OTHER */
-/* <var69:Int> isa OTHER */
-var72 = 1; /* easy <var69:Int> isa OTHER*/
-if (unlikely(!var72)) {
-var_class_name75 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name75);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_its_index,1l) on <var_its_index:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var67 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var67)) {
+var_class_name70 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name70);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var76 = var_its_index + var69;
-var70 = var76;
-goto RET_LABEL71;
-RET_LABEL71:(void)0;
+var71 = var_its_index + 1l;
+var65 = var71;
+goto RET_LABEL66;
+RET_LABEL66:(void)0;
 }
 }
-var_its_index = var70;
+var_its_index = var65;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
-var77 = 1;
-var = var77;
+var = 1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -5240,75 +5339,70 @@ long var10 /* : Int */;
 long var12 /* : Int */;
 short int var13 /* : Bool */;
 short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-long var17 /* : Int */;
-long var19 /* : Int */;
+long var16 /* : Int */;
+long var18 /* : Int */;
 long var_curr_id_self /* var curr_id_self: Int */;
-long var20 /* : Int */;
-long var22 /* : Int */;
+long var19 /* : Int */;
+long var21 /* : Int */;
 long var_curr_id_other /* var curr_id_other: Int */;
-char* var23 /* : NativeString */;
-char* var25 /* : NativeString */;
+char* var22 /* : NativeString */;
+char* var24 /* : NativeString */;
 char* var_my_items /* var my_items: NativeString */;
-char* var26 /* : NativeString */;
-char* var28 /* : NativeString */;
+char* var25 /* : NativeString */;
+char* var27 /* : NativeString */;
 char* var_its_items /* var its_items: NativeString */;
-long var29 /* : Int */;
-long var31 /* : Int */;
+long var28 /* : Int */;
+long var30 /* : Int */;
 long var_my_length /* var my_length: Int */;
-long var32 /* : Int */;
-long var34 /* : Int */;
+long var31 /* : Int */;
+long var33 /* : Int */;
 long var_its_length /* var its_length: Int */;
-long var35 /* : Int */;
-short int var37 /* : Bool */;
-int cltype38;
-int idtype39;
-const char* var_class_name40;
-long var41 /* : Int */;
+long var34 /* : Int */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+const char* var_class_name39;
+long var40 /* : Int */;
 long var_max_iterations /* var max_iterations: Int */;
-short int var42 /* : Bool */;
-short int var44 /* : Bool */;
-int cltype45;
-int idtype46;
-const char* var_class_name47;
-short int var48 /* : Bool */;
-char var49 /* : Char */;
-char var51 /* : Char */;
-char var_my_curr_char /* var my_curr_char: Char */;
-char var52 /* : Char */;
-char var54 /* : Char */;
-char var_its_curr_char /* var its_curr_char: Char */;
-short int var55 /* : Bool */;
+short int var41 /* : Bool */;
+short int var43 /* : Bool */;
+int cltype44;
+int idtype45;
+const char* var_class_name46;
+short int var47 /* : Bool */;
+uint32_t var48 /* : Char */;
+uint32_t var50 /* : Char */;
+uint32_t var_my_curr_char /* var my_curr_char: Char */;
+uint32_t var51 /* : Char */;
+uint32_t var53 /* : Char */;
+uint32_t var_its_curr_char /* var its_curr_char: Char */;
+short int var54 /* : Bool */;
+short int var56 /* : Bool */;
 short int var57 /* : Bool */;
 short int var58 /* : Bool */;
-short int var59 /* : Bool */;
-short int var61 /* : Bool */;
-int cltype62;
-int idtype63;
-const char* var_class_name64;
-short int var65 /* : Bool */;
-short int var66 /* : Bool */;
+short int var60 /* : Bool */;
+int cltype61;
+int idtype62;
+const char* var_class_name63;
+short int var64 /* : Bool */;
+long var65 /* : Int */;
 short int var67 /* : Bool */;
-long var68 /* : Int */;
-long var69 /* : Int */;
-short int var71 /* : Bool */;
-int cltype72;
-int idtype73;
-const char* var_class_name74;
-long var75 /* : Int */;
-long var76 /* : Int */;
-long var77 /* : Int */;
+int cltype68;
+int idtype69;
+const char* var_class_name70;
+long var71 /* : Int */;
+long var72 /* : Int */;
+short int var74 /* : Bool */;
+int cltype75;
+int idtype76;
+const char* var_class_name77;
+long var78 /* : Int */;
 short int var79 /* : Bool */;
-int cltype80;
-int idtype81;
-const char* var_class_name82;
-long var83 /* : Int */;
-short int var84 /* : Bool */;
-short int var86 /* : Bool */;
-int cltype87;
-int idtype88;
-const char* var_class_name89;
-short int var90 /* : Bool */;
+short int var81 /* : Bool */;
+int cltype82;
+int idtype83;
+const char* var_class_name84;
+short int var85 /* : Bool */;
 /* Covariant cast for argument 0 (other) <p0:Text> isa OTHER */
 /* <p0:Text> isa OTHER */
 type_struct = self->type->resolution_table->types[COLOR_standard__kernel__Comparable__OTHER];
@@ -5322,8 +5416,8 @@ var1 = p0->type->type_table[cltype] == idtype;
 if (unlikely(!var1)) {
 var_class_name = p0 == NULL ? "null" : p0->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1214);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1356);
+fatal_exit(1);
 }
 var_other = p0;
 /* <var_other:Text> isa FlatString */
@@ -5337,7 +5431,7 @@ var2 = var_other->type->type_table[cltype3] == idtype4;
 var5 = !var2;
 if (var5){
 {
-var6 = ((short int (*)(val* self, val* p0))(self->class->vft[COLOR_standard___standard__FlatString___standard__kernel__Comparable___60d]))(self, p0) /* < on <self:FlatString>*/;
+var6 = ((short int(*)(val* self, val* p0))(self->class->vft[COLOR_standard___standard__FlatString___standard__kernel__Comparable___60d]))(self, p0); /* < on <self:FlatString>*/
 }
 var = var6;
 goto RET_LABEL;
@@ -5368,190 +5462,185 @@ RET_LABEL14:(void)0;
 }
 }
 if (var13){
-var16 = 0;
-var = var16;
+var = 0;
 goto RET_LABEL;
 } else {
 }
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var19 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var17 = var19;
-RET_LABEL18:(void)0;
+var18 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var16 = var18;
+RET_LABEL17:(void)0;
 }
 }
-var_curr_id_self = var17;
+var_curr_id_self = var16;
 {
 { /* Inline string#FlatString#index_from (var_other) on <var_other:Text(FlatString)> */
-var22 = var_other->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_other:Text(FlatString)> */
-var20 = var22;
-RET_LABEL21:(void)0;
+var21 = var_other->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_other:Text(FlatString)> */
+var19 = var21;
+RET_LABEL20:(void)0;
 }
 }
-var_curr_id_other = var20;
+var_curr_id_other = var19;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var25 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var23 = var25;
-RET_LABEL24:(void)0;
+var24 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var22 = var24;
+RET_LABEL23:(void)0;
 }
 }
-var_my_items = var23;
+var_my_items = var22;
 {
 { /* Inline string#FlatText#items (var_other) on <var_other:Text(FlatString)> */
-var28 = var_other->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_other:Text(FlatString)> */
-var26 = var28;
-RET_LABEL27:(void)0;
+var27 = var_other->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_other:Text(FlatString)> */
+var25 = var27;
+RET_LABEL26:(void)0;
 }
 }
-var_its_items = var26;
+var_its_items = var25;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var31 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var29 = var31;
-RET_LABEL30:(void)0;
+var30 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var28 = var30;
+RET_LABEL29:(void)0;
 }
 }
-var_my_length = var29;
+var_my_length = var28;
 {
 { /* Inline string#FlatText#length (var_other) on <var_other:Text(FlatString)> */
-var34 = var_other->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_other:Text(FlatString)> */
-var32 = var34;
-RET_LABEL33:(void)0;
+var33 = var_other->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_other:Text(FlatString)> */
+var31 = var33;
+RET_LABEL32:(void)0;
 }
 }
-var_its_length = var32;
+var_its_length = var31;
 {
 { /* Inline kernel#Int#+ (var_curr_id_self,var_my_length) on <var_curr_id_self:Int> */
 /* Covariant cast for argument 0 (i) <var_my_length:Int> isa OTHER */
 /* <var_my_length:Int> isa OTHER */
-var37 = 1; /* easy <var_my_length:Int> isa OTHER*/
-if (unlikely(!var37)) {
-var_class_name40 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var36 = 1; /* easy <var_my_length:Int> isa OTHER*/
+if (unlikely(!var36)) {
+var_class_name39 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var41 = var_curr_id_self + var_my_length;
-var35 = var41;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+var40 = var_curr_id_self + var_my_length;
+var34 = var40;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
 }
-var_max_iterations = var35;
+var_max_iterations = var34;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_curr_id_self,var_max_iterations) on <var_curr_id_self:Int> */
 /* Covariant cast for argument 0 (i) <var_max_iterations:Int> isa OTHER */
 /* <var_max_iterations:Int> isa OTHER */
-var44 = 1; /* easy <var_max_iterations:Int> isa OTHER*/
-if (unlikely(!var44)) {
-var_class_name47 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
-}
-var48 = var_curr_id_self < var_max_iterations;
-var42 = var48;
-goto RET_LABEL43;
-RET_LABEL43:(void)0;
+var43 = 1; /* easy <var_max_iterations:Int> isa OTHER*/
+if (unlikely(!var43)) {
+var_class_name46 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name46);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
+}
+var47 = var_curr_id_self < var_max_iterations;
+var41 = var47;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
 }
-if (var42){
+if (var41){
 {
 { /* Inline string#NativeString#[] (var_my_items,var_curr_id_self) on <var_my_items:NativeString> */
-var51 = var_my_items[var_curr_id_self];
-var49 = var51;
-goto RET_LABEL50;
-RET_LABEL50:(void)0;
+var50 = (uint32_t)(unsigned char)var_my_items[var_curr_id_self];
+var48 = var50;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
-var_my_curr_char = var49;
+var_my_curr_char = var48;
 {
 { /* Inline string#NativeString#[] (var_its_items,var_curr_id_other) on <var_its_items:NativeString> */
-var54 = var_its_items[var_curr_id_other];
-var52 = var54;
-goto RET_LABEL53;
-RET_LABEL53:(void)0;
+var53 = (uint32_t)(unsigned char)var_its_items[var_curr_id_other];
+var51 = var53;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
 }
 }
-var_its_curr_char = var52;
+var_its_curr_char = var51;
 {
 { /* Inline kernel#Char#!= (var_my_curr_char,var_its_curr_char) on <var_my_curr_char:Char> */
-var57 = var_my_curr_char == var_its_curr_char;
-var58 = !var57;
-var55 = var58;
-goto RET_LABEL56;
-RET_LABEL56:(void)0;
+var56 = var_my_curr_char == var_its_curr_char;
+var57 = !var56;
+var54 = var57;
+goto RET_LABEL55;
+RET_LABEL55:(void)0;
 }
 }
-if (var55){
+if (var54){
 {
 { /* Inline kernel#Char#< (var_my_curr_char,var_its_curr_char) on <var_my_curr_char:Char> */
 /* Covariant cast for argument 0 (i) <var_its_curr_char:Char> isa OTHER */
 /* <var_its_curr_char:Char> isa OTHER */
-var61 = 1; /* easy <var_its_curr_char:Char> isa OTHER*/
-if (unlikely(!var61)) {
-var_class_name64 = type_standard__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name64);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 592);
-show_backtrace(1);
-}
-var65 = var_my_curr_char < var_its_curr_char;
-var59 = var65;
-goto RET_LABEL60;
-RET_LABEL60:(void)0;
+var60 = 1; /* easy <var_its_curr_char:Char> isa OTHER*/
+if (unlikely(!var60)) {
+var_class_name63 = type_standard__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 723);
+fatal_exit(1);
+}
+var64 = var_my_curr_char < var_its_curr_char;
+var58 = var64;
+goto RET_LABEL59;
+RET_LABEL59:(void)0;
 }
 }
-if (var59){
-var66 = 1;
-var = var66;
+if (var58){
+var = 1;
 goto RET_LABEL;
 } else {
 }
-var67 = 0;
-var = var67;
+var = 0;
 goto RET_LABEL;
 } else {
 }
-var68 = 1;
 {
-{ /* Inline kernel#Int#+ (var_curr_id_self,var68) on <var_curr_id_self:Int> */
-/* Covariant cast for argument 0 (i) <var68:Int> isa OTHER */
-/* <var68:Int> isa OTHER */
-var71 = 1; /* easy <var68:Int> isa OTHER*/
-if (unlikely(!var71)) {
-var_class_name74 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name74);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_curr_id_self,1l) on <var_curr_id_self:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var67 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var67)) {
+var_class_name70 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name70);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var75 = var_curr_id_self + var68;
-var69 = var75;
-goto RET_LABEL70;
-RET_LABEL70:(void)0;
+var71 = var_curr_id_self + 1l;
+var65 = var71;
+goto RET_LABEL66;
+RET_LABEL66:(void)0;
 }
 }
-var_curr_id_self = var69;
-var76 = 1;
+var_curr_id_self = var65;
 {
-{ /* Inline kernel#Int#+ (var_curr_id_other,var76) on <var_curr_id_other:Int> */
-/* Covariant cast for argument 0 (i) <var76:Int> isa OTHER */
-/* <var76:Int> isa OTHER */
-var79 = 1; /* easy <var76:Int> isa OTHER*/
-if (unlikely(!var79)) {
-var_class_name82 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name82);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_curr_id_other,1l) on <var_curr_id_other:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var74 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var74)) {
+var_class_name77 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name77);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var83 = var_curr_id_other + var76;
-var77 = var83;
-goto RET_LABEL78;
-RET_LABEL78:(void)0;
+var78 = var_curr_id_other + 1l;
+var72 = var78;
+goto RET_LABEL73;
+RET_LABEL73:(void)0;
 }
 }
-var_curr_id_other = var77;
+var_curr_id_other = var72;
 } else {
 goto BREAK_label;
 }
@@ -5561,20 +5650,20 @@ BREAK_label: (void)0;
 { /* Inline kernel#Int#< (var_my_length,var_its_length) on <var_my_length:Int> */
 /* Covariant cast for argument 0 (i) <var_its_length:Int> isa OTHER */
 /* <var_its_length:Int> isa OTHER */
-var86 = 1; /* easy <var_its_length:Int> isa OTHER*/
-if (unlikely(!var86)) {
-var_class_name89 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name89);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+var81 = 1; /* easy <var_its_length:Int> isa OTHER*/
+if (unlikely(!var81)) {
+var_class_name84 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name84);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var90 = var_my_length < var_its_length;
-var84 = var90;
-goto RET_LABEL85;
-RET_LABEL85:(void)0;
+var85 = var_my_length < var_its_length;
+var79 = var85;
+goto RET_LABEL80;
+RET_LABEL80:(void)0;
 }
 }
-var = var84;
+var = var79;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -5583,215 +5672,201 @@ return var;
 val* standard___standard__FlatString___String___42d(val* self, long p0) {
 val* var /* : String */;
 long var_i /* var i: Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var5 /* : Bool */;
-long var6 /* : Int */;
-long var8 /* : Int */;
+short int var4 /* : Bool */;
+long var5 /* : Int */;
+long var7 /* : Int */;
 long var_my_length /* var my_length: Int */;
-long var9 /* : Int */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-const char* var_class_name14;
-long var15 /* : Int */;
+long var8 /* : Int */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+const char* var_class_name13;
+long var14 /* : Int */;
 long var_final_length /* var final_length: Int */;
-char* var16 /* : NativeString */;
-char* var18 /* : NativeString */;
+char* var15 /* : NativeString */;
+char* var17 /* : NativeString */;
 char* var_my_items /* var my_items: NativeString */;
-char* var19 /* : NativeString */;
-long var20 /* : Int */;
-long var21 /* : Int */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-long var27 /* : Int */;
+char* var18 /* : NativeString */;
+long var19 /* : Int */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+const char* var_class_name24;
+long var25 /* : Int */;
+char* var26 /* : NativeString */;
 char* var28 /* : NativeString */;
-char* var30 /* : NativeString */;
 char* var_target_string /* var target_string: NativeString */;
-char var31 /* : Char */;
-long var33 /* : Int */;
 long var_current_last /* var current_last: Int */;
-long var34 /* : Int */;
 long var_iteration /* var iteration: Int */;
 long var_ /* var : Int */;
-short int var35 /* : Bool */;
-short int var37 /* : Bool */;
-int cltype38;
-int idtype39;
-const char* var_class_name40;
-short int var41 /* : Bool */;
-long var42 /* : Int */;
+short int var30 /* : Bool */;
+short int var32 /* : Bool */;
+int cltype33;
+int idtype34;
+const char* var_class_name35;
+short int var36 /* : Bool */;
+long var38 /* : Int */;
+short int var40 /* : Bool */;
+int cltype41;
+int idtype42;
+const char* var_class_name43;
 long var44 /* : Int */;
-short int var46 /* : Bool */;
-int cltype47;
-int idtype48;
-const char* var_class_name49;
-long var50 /* : Int */;
-long var51 /* : Int */;
-long var52 /* : Int */;
-val* var53 /* : FlatString */;
+long var45 /* : Int */;
+val* var46 /* : FlatString */;
 var_i = p0;
-var1 = 0;
 {
-{ /* Inline kernel#Int#>= (var_i,var1) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_i,0l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_i >= var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_i >= 0l;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1280);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1422);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatString> */
-var8 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
-var6 = var8;
-RET_LABEL7:(void)0;
+var7 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatString> */
+var5 = var7;
+RET_LABEL6:(void)0;
 }
 }
-var_my_length = var6;
+var_my_length = var5;
 {
 { /* Inline kernel#Int#* (var_my_length,var_i) on <var_my_length:Int> */
 /* Covariant cast for argument 0 (i) <var_i:Int> isa OTHER */
 /* <var_i:Int> isa OTHER */
-var11 = 1; /* easy <var_i:Int> isa OTHER*/
-if (unlikely(!var11)) {
-var_class_name14 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name14);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 417);
-show_backtrace(1);
+var10 = 1; /* easy <var_i:Int> isa OTHER*/
+if (unlikely(!var10)) {
+var_class_name13 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 541);
+fatal_exit(1);
 }
-var15 = var_my_length * var_i;
-var9 = var15;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+var14 = var_my_length * var_i;
+var8 = var14;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
-var_final_length = var9;
+var_final_length = var8;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var18 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var16 = var18;
-RET_LABEL17:(void)0;
+var17 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
-var_my_items = var16;
-var19 = NULL/*special!*/;
-var20 = 1;
+var_my_items = var15;
+var18 = NULL/*special!*/;
 {
-{ /* Inline kernel#Int#+ (var_final_length,var20) on <var_final_length:Int> */
-/* Covariant cast for argument 0 (i) <var20:Int> isa OTHER */
-/* <var20:Int> isa OTHER */
-var23 = 1; /* easy <var20:Int> isa OTHER*/
-if (unlikely(!var23)) {
-var_class_name26 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_final_length,1l) on <var_final_length:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var21 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var21)) {
+var_class_name24 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var27 = var_final_length + var20;
-var21 = var27;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+var25 = var_final_length + 1l;
+var19 = var25;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var19,var21) on <var19:NativeString> */
-var30 = (char*)nit_alloc(var21);
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+{ /* Inline string#NativeString#new (var18,var19) on <var18:NativeString> */
+var28 = (char*)nit_alloc(var19);
+var26 = var28;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
 }
 }
-var_target_string = var28;
-var31 = '\0';
+var_target_string = var26;
 {
-{ /* Inline string#NativeString#[]= (var_target_string,var_final_length,var31) on <var_target_string:NativeString> */
-var_target_string[var_final_length]=var31;
-RET_LABEL32:(void)0;
+{ /* Inline string#NativeString#[]= (var_target_string,var_final_length,'\000') on <var_target_string:NativeString> */
+var_target_string[var_final_length]=(unsigned char)'\000';
+RET_LABEL29:(void)0;
 }
 }
-var33 = 0;
-var_current_last = var33;
-var34 = 1;
-var_iteration = var34;
+var_current_last = 0l;
+var_iteration = 1l;
 var_ = var_i;
 for(;;) {
 {
 { /* Inline kernel#Int#<= (var_iteration,var_) on <var_iteration:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var37 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var37)) {
-var_class_name40 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
-}
-var41 = var_iteration <= var_;
-var35 = var41;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+var32 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var32)) {
+var_class_name35 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name35);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
+}
+var36 = var_iteration <= var_;
+var30 = var36;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
 }
 }
-if (var35){
-var42 = 0;
+if (var30){
 {
-{ /* Inline string#NativeString#copy_to (var_my_items,var_target_string,var_my_length,var42,var_current_last) on <var_my_items:NativeString> */
-memmove(var_target_string+var_current_last,var_my_items+var42,var_my_length);
-RET_LABEL43:(void)0;
+{ /* Inline string#NativeString#copy_to (var_my_items,var_target_string,var_my_length,0l,var_current_last) on <var_my_items:NativeString> */
+memmove(var_target_string+var_current_last,var_my_items+0l,var_my_length);
+RET_LABEL37:(void)0;
 }
 }
 {
 { /* Inline kernel#Int#+ (var_current_last,var_my_length) on <var_current_last:Int> */
 /* Covariant cast for argument 0 (i) <var_my_length:Int> isa OTHER */
 /* <var_my_length:Int> isa OTHER */
-var46 = 1; /* easy <var_my_length:Int> isa OTHER*/
-if (unlikely(!var46)) {
-var_class_name49 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var50 = var_current_last + var_my_length;
-var44 = var50;
-goto RET_LABEL45;
-RET_LABEL45:(void)0;
+var40 = 1; /* easy <var_my_length:Int> isa OTHER*/
+if (unlikely(!var40)) {
+var_class_name43 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name43);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var44 = var_current_last + var_my_length;
+var38 = var44;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
 }
-var_current_last = var44;
-var51 = 1;
+var_current_last = var38;
 {
-var52 = standard___standard__Int___Discrete__successor(var_iteration, var51);
+var45 = standard___standard__Int___Discrete__successor(var_iteration, 1l);
 }
-var_iteration = var52;
+var_iteration = var45;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
 {
-var53 = standard___standard__NativeString___to_s_with_length(var_target_string, var_final_length);
+var46 = standard___standard__NativeString___to_s_with_length(var_target_string, var_final_length);
 }
-var = var53;
+var = var46;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -5801,56 +5876,52 @@ long standard___standard__FlatString___standard__kernel__Object__hash(val* self)
 long var /* : Int */;
 val* var1 /* : nullable Int */;
 val* var3 /* : nullable Int */;
-val* var4 /* : null */;
+short int var4 /* : Bool */;
 short int var5 /* : Bool */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
-long var9 /* : Int */;
+short int var7 /* : Bool */;
 long var_h /* var h: Int */;
+long var8 /* : Int */;
 long var10 /* : Int */;
-long var12 /* : Int */;
 long var_i /* var i: Int */;
+char* var11 /* : NativeString */;
 char* var13 /* : NativeString */;
-char* var15 /* : NativeString */;
 char* var_myitems /* var myitems: NativeString */;
+long var14 /* : Int */;
 long var16 /* : Int */;
-long var18 /* : Int */;
+short int var17 /* : Bool */;
 short int var19 /* : Bool */;
-short int var21 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var22 /* : Bool */;
+short int var20 /* : Bool */;
+long var21 /* : Int */;
 long var23 /* : Int */;
 long var24 /* : Int */;
-long var26 /* : Int */;
-long var27 /* : Int */;
-short int var29 /* : Bool */;
-int cltype30;
-int idtype31;
-const char* var_class_name32;
-long var33 /* : Int */;
-char var34 /* : Char */;
-char var36 /* : Char */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+const char* var_class_name29;
+long var30 /* : Int */;
+uint32_t var31 /* : Char */;
+uint32_t var33 /* : Char */;
+long var34 /* : Int */;
+long var36 /* : Int */;
 long var37 /* : Int */;
-long var39 /* : Int */;
-long var40 /* : Int */;
-short int var42 /* : Bool */;
-int cltype43;
-int idtype44;
-const char* var_class_name45;
-long var46 /* : Int */;
-long var47 /* : Int */;
-long var48 /* : Int */;
-short int var50 /* : Bool */;
-int cltype51;
-int idtype52;
-const char* var_class_name53;
-long var54 /* : Int */;
-val* var56 /* : nullable Int */;
-val* var57 /* : nullable Int */;
-val* var59 /* : nullable Int */;
-long var60 /* : Int */;
+short int var39 /* : Bool */;
+int cltype40;
+int idtype41;
+const char* var_class_name42;
+long var43 /* : Int */;
+long var44 /* : Int */;
+short int var46 /* : Bool */;
+int cltype47;
+int idtype48;
+const char* var_class_name49;
+long var50 /* : Int */;
+val* var52 /* : nullable Int */;
+val* var53 /* : nullable Int */;
+val* var55 /* : nullable Int */;
+long var56 /* : Int */;
 {
 { /* Inline string#Text#hash_cache (self) on <self:FlatString> */
 var3 = self->attrs[COLOR_standard__string__Text___hash_cache].val; /* _hash_cache on <self:FlatString> */
@@ -5858,145 +5929,141 @@ var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
-var4 = NULL;
 if (var1 == NULL) {
-var5 = 1; /* is null */
+var4 = 1; /* is null */
 } else {
-var5 = 0; /* arg is null but recv is not */
+var4 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Int#== (var1,var4) on <var1:nullable Int> */
-var8 = 0; /* incompatible types Int vs. null; cannot be NULL */
-var6 = var8;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+{ /* Inline kernel#Int#== (var1,((val*)NULL)) on <var1:nullable Int> */
+var7 = 0; /* incompatible types Int vs. null; cannot be NULL */
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
-var5 = var6;
+var4 = var5;
 }
-if (var5){
-var9 = 5381;
-var_h = var9;
+if (var4){
+var_h = 5381l;
 {
 { /* Inline string#FlatString#index_from (self) on <self:FlatString> */
-var12 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
-var10 = var12;
-RET_LABEL11:(void)0;
+var10 = self->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <self:FlatString> */
+var8 = var10;
+RET_LABEL9:(void)0;
 }
 }
-var_i = var10;
+var_i = var8;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatString> */
-var15 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
-var13 = var15;
-RET_LABEL14:(void)0;
+var13 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatString> */
+var11 = var13;
+RET_LABEL12:(void)0;
 }
 }
-var_myitems = var13;
+var_myitems = var11;
 for(;;) {
 {
 { /* Inline string#FlatString#index_to (self) on <self:FlatString> */
-var18 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
-var16 = var18;
-RET_LABEL17:(void)0;
+var16 = self->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <self:FlatString> */
+var14 = var16;
+RET_LABEL15:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#<= (var_i,var16) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var16:Int> isa OTHER */
-/* <var16:Int> isa OTHER */
-var21 = 1; /* easy <var16:Int> isa OTHER*/
-if (unlikely(!var21)) {
+{ /* Inline kernel#Int#<= (var_i,var14) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var14:Int> isa OTHER */
+/* <var14:Int> isa OTHER */
+var19 = 1; /* easy <var14:Int> isa OTHER*/
+if (unlikely(!var19)) {
 var_class_name = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
-}
-var22 = var_i <= var16;
-var19 = var22;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
+var20 = var_i <= var14;
+var17 = var20;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
 }
-if (var19){
-var23 = 5;
+}
+if (var17){
 {
-{ /* Inline kernel#Int#lshift (var_h,var23) on <var_h:Int> */
-var26 = var_h << var23;
-var24 = var26;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
+{ /* Inline kernel#Int#lshift (var_h,5l) on <var_h:Int> */
+var23 = var_h << 5l;
+var21 = var23;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var24,var_h) on <var24:Int> */
+{ /* Inline kernel#Int#+ (var21,var_h) on <var21:Int> */
 /* Covariant cast for argument 0 (i) <var_h:Int> isa OTHER */
 /* <var_h:Int> isa OTHER */
-var29 = 1; /* easy <var_h:Int> isa OTHER*/
-if (unlikely(!var29)) {
-var_class_name32 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name32);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var26 = 1; /* easy <var_h:Int> isa OTHER*/
+if (unlikely(!var26)) {
+var_class_name29 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var33 = var24 + var_h;
-var27 = var33;
-goto RET_LABEL28;
-RET_LABEL28:(void)0;
+var30 = var21 + var_h;
+var24 = var30;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
 }
 }
 {
 { /* Inline string#NativeString#[] (var_myitems,var_i) on <var_myitems:NativeString> */
-var36 = var_myitems[var_i];
+var33 = (uint32_t)(unsigned char)var_myitems[var_i];
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
+}
+}
+{
+{ /* Inline kernel#Char#ascii (var31) on <var31:Char> */
+var36 = (long)var31;
 var34 = var36;
 goto RET_LABEL35;
 RET_LABEL35:(void)0;
 }
 }
 {
-{ /* Inline kernel#Char#ascii (var34) on <var34:Char> */
-var39 = (unsigned char)var34;
-var37 = var39;
+{ /* Inline kernel#Int#+ (var24,var34) on <var24:Int> */
+/* Covariant cast for argument 0 (i) <var34:Int> isa OTHER */
+/* <var34:Int> isa OTHER */
+var39 = 1; /* easy <var34:Int> isa OTHER*/
+if (unlikely(!var39)) {
+var_class_name42 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name42);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var43 = var24 + var34;
+var37 = var43;
 goto RET_LABEL38;
 RET_LABEL38:(void)0;
 }
 }
+var_h = var37;
 {
-{ /* Inline kernel#Int#+ (var27,var37) on <var27:Int> */
-/* Covariant cast for argument 0 (i) <var37:Int> isa OTHER */
-/* <var37:Int> isa OTHER */
-var42 = 1; /* easy <var37:Int> isa OTHER*/
-if (unlikely(!var42)) {
-var_class_name45 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name45);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var46 = var27 + var37;
-var40 = var46;
-goto RET_LABEL41;
-RET_LABEL41:(void)0;
-}
-}
-var_h = var40;
-var47 = 1;
-{
-{ /* Inline kernel#Int#+ (var_i,var47) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var47:Int> isa OTHER */
-/* <var47:Int> isa OTHER */
-var50 = 1; /* easy <var47:Int> isa OTHER*/
-if (unlikely(!var50)) {
-var_class_name53 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var46 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var46)) {
+var_class_name49 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var54 = var_i + var47;
-var48 = var54;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var50 = var_i + 1l;
+var44 = var50;
+goto RET_LABEL45;
+RET_LABEL45:(void)0;
 }
 }
-var_i = var48;
+var_i = var44;
 } else {
 goto BREAK_label;
 }
@@ -6004,41 +6071,41 @@ goto BREAK_label;
 BREAK_label: (void)0;
 {
 { /* Inline string#Text#hash_cache= (self,var_h) on <self:FlatString> */
-var56 = BOX_standard__Int(var_h); /* autobox from Int to nullable Int */
-self->attrs[COLOR_standard__string__Text___hash_cache].val = var56; /* _hash_cache on <self:FlatString> */
-RET_LABEL55:(void)0;
+var52 = (val*)(var_h<<2|1);
+self->attrs[COLOR_standard__string__Text___hash_cache].val = var52; /* _hash_cache on <self:FlatString> */
+RET_LABEL51:(void)0;
 }
 }
 } else {
 }
 {
 { /* Inline string#Text#hash_cache (self) on <self:FlatString> */
-var59 = self->attrs[COLOR_standard__string__Text___hash_cache].val; /* _hash_cache on <self:FlatString> */
-var57 = var59;
-RET_LABEL58:(void)0;
+var55 = self->attrs[COLOR_standard__string__Text___hash_cache].val; /* _hash_cache on <self:FlatString> */
+var53 = var55;
+RET_LABEL54:(void)0;
 }
 }
-if (unlikely(var57 == NULL)) {
+if (unlikely(var53 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1319);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1461);
+fatal_exit(1);
 }
-var60 = ((struct instance_standard__Int*)var57)->value; /* autounbox from nullable Int to Int */;
-var = var60;
+var56 = (long)(var53)>>2;
+var = var56;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method string#FlatString#substrings for (self: FlatString): Iterator[Text] */
+/* method string#FlatString#substrings for (self: FlatString): Iterator[FlatText] */
 val* standard___standard__FlatString___Text__substrings(val* self) {
-val* var /* : Iterator[Text] */;
+val* var /* : Iterator[FlatText] */;
 val* var1 /* : FlatSubstringsIter */;
 var1 = NEW_standard__string__FlatSubstringsIter(&type_standard__string__FlatSubstringsIter);
 {
-((void (*)(val* self, val* p0))(var1->class->vft[COLOR_standard__string__FlatSubstringsIter__tgt_61d]))(var1, self) /* tgt= on <var1:FlatSubstringsIter>*/;
+((void(*)(val* self, val* p0))(var1->class->vft[COLOR_standard__string__FlatSubstringsIter__tgt_61d]))(var1, self); /* tgt= on <var1:FlatSubstringsIter>*/
 }
 {
-((void (*)(val* self))(var1->class->vft[COLOR_standard__kernel__Object__init]))(var1) /* init on <var1:FlatSubstringsIter>*/;
+((void(*)(val* self))(var1->class->vft[COLOR_standard__kernel__Object__init]))(var1); /* init on <var1:FlatSubstringsIter>*/
 }
 var = var1;
 goto RET_LABEL;
@@ -6052,8 +6119,8 @@ val* var1 /* : FlatString */;
 var1 = self->attrs[COLOR_standard__string__FlatStringIterator___target].val; /* _target on <self:FlatStringIterator> */
 if (unlikely(var1 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1354);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1496);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
@@ -6134,8 +6201,8 @@ RET_LABEL4:(void)0;
 var7 = self->attrs[COLOR_standard__string__FlatStringIterator___target].val; /* _target on <self:FlatStringIterator> */
 if (unlikely(var7 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1354);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1496);
+fatal_exit(1);
 }
 var5 = var7;
 RET_LABEL6:(void)0;
@@ -6156,8 +6223,8 @@ var13 = 1; /* easy <var8:Int> isa OTHER*/
 if (unlikely(!var13)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
 var14 = var_pos + var8;
 var11 = var14;
@@ -6200,8 +6267,8 @@ RET_LABEL2:(void)0;
 var6 = self->attrs[COLOR_standard__string__FlatStringIterator___target].val; /* _target on <self:FlatStringIterator> */
 if (unlikely(var6 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1354);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1496);
+fatal_exit(1);
 }
 var4 = var6;
 RET_LABEL5:(void)0;
@@ -6222,8 +6289,8 @@ var12 = 1; /* easy <var7:Int> isa OTHER*/
 if (unlikely(!var12)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
 var13 = var1 <= var7;
 var10 = var13;
@@ -6237,14 +6304,14 @@ RET_LABEL:;
 return var;
 }
 /* method string#FlatStringIterator#item for (self: FlatStringIterator): Char */
-char standard__string___standard__string__FlatStringIterator___standard__abstract_collection__Iterator__item(val* self) {
-char var /* : Char */;
+uint32_t standard__string___standard__string__FlatStringIterator___standard__abstract_collection__Iterator__item(val* self) {
+uint32_t var /* : Char */;
 char* var1 /* : NativeString */;
 char* var3 /* : NativeString */;
 long var4 /* : Int */;
 long var6 /* : Int */;
-char var7 /* : Char */;
-char var9 /* : Char */;
+uint32_t var7 /* : Char */;
+uint32_t var9 /* : Char */;
 {
 { /* Inline string#FlatStringIterator#target_items (self) on <self:FlatStringIterator> */
 var3 = self->attrs[COLOR_standard__string__FlatStringIterator___target_items].str; /* _target_items on <self:FlatStringIterator> */
@@ -6261,7 +6328,7 @@ RET_LABEL5:(void)0;
 }
 {
 { /* Inline string#NativeString#[] (var1,var4) on <var1:NativeString> */
-var9 = var1[var4];
+var9 = (uint32_t)(unsigned char)var1[var4];
 var7 = var9;
 goto RET_LABEL8;
 RET_LABEL8:(void)0;
@@ -6275,10 +6342,10 @@ return var;
 /* method string#FlatStringIterator#item for (self: Iterator[nullable Object]): nullable Object */
 val* VIRTUAL_standard__string___standard__string__FlatStringIterator___standard__abstract_collection__Iterator__item(val* self) {
 val* var /* : nullable Object */;
-char var1 /* : Char */;
+uint32_t var1 /* : Char */;
 val* var2 /* : nullable Object */;
 var1 = standard__string___standard__string__FlatStringIterator___standard__abstract_collection__Iterator__item(self);
-var2 = BOX_standard__Char(var1); /* autobox from Char to nullable Object */
+var2 = (val*)((long)(var1)<<2|2);
 var = var2;
 RET_LABEL:;
 return var;
@@ -6289,12 +6356,11 @@ val* var_ /* var : FlatStringIterator */;
 long var /* : Int */;
 long var2 /* : Int */;
 long var3 /* : Int */;
-long var4 /* : Int */;
-short int var6 /* : Bool */;
+short int var5 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var7 /* : Int */;
+long var6 /* : Int */;
 var_ = self;
 {
 { /* Inline string#FlatStringIterator#curr_pos (var_) on <var_:FlatStringIterator> */
@@ -6303,28 +6369,27 @@ var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var3 = 1;
 {
-{ /* Inline kernel#Int#+ (var,var3) on <var:Int> */
-/* Covariant cast for argument 0 (i) <var3:Int> isa OTHER */
-/* <var3:Int> isa OTHER */
-var6 = 1; /* easy <var3:Int> isa OTHER*/
-if (unlikely(!var6)) {
+{ /* Inline kernel#Int#+ (var,1l) on <var:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var5 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var5)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var7 = var + var3;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+var6 = var + 1l;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
 }
 {
-{ /* Inline string#FlatStringIterator#curr_pos= (var_,var4) on <var_:FlatStringIterator> */
-var_->attrs[COLOR_standard__string__FlatStringIterator___curr_pos].l = var4; /* _curr_pos on <var_:FlatStringIterator> */
-RET_LABEL8:(void)0;
+{ /* Inline string#FlatStringIterator#curr_pos= (var_,var3) on <var_:FlatStringIterator> */
+var_->attrs[COLOR_standard__string__FlatStringIterator___curr_pos].l = var3; /* _curr_pos on <var_:FlatStringIterator> */
+RET_LABEL7:(void)0;
 }
 }
 RET_LABEL:;
@@ -6356,8 +6421,8 @@ RET_LABEL2:(void)0;
 var6 = self->attrs[COLOR_standard__string__FlatStringIterator___target].val; /* _target on <self:FlatStringIterator> */
 if (unlikely(var6 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1354);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1496);
+fatal_exit(1);
 }
 var4 = var6;
 RET_LABEL5:(void)0;
@@ -6378,8 +6443,8 @@ var12 = 1; /* easy <var7:Int> isa OTHER*/
 if (unlikely(!var12)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
 var13 = var1 - var7;
 var10 = var13;
@@ -6395,182 +6460,180 @@ return var;
 /* method string#FlatStringIterator#init for (self: FlatStringIterator) */
 void standard__string___standard__string__FlatStringIterator___standard__kernel__Object__init(val* self) {
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__FlatStringIterator___standard__kernel__Object__init]))(self) /* init on <self:FlatStringIterator>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__FlatStringIterator___standard__kernel__Object__init]))(self); /* init on <self:FlatStringIterator>*/
 }
 RET_LABEL:;
 }
 /* method string#FlatStringCharView#[] for (self: FlatStringCharView, Int): Char */
-char standard__string___standard__string__FlatStringCharView___standard__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
-char var /* : Char */;
+uint32_t standard__string___standard__string__FlatStringCharView___standard__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
+uint32_t var /* : Char */;
 long var_index /* var index: Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var5 /* : Bool */;
-val* var6 /* : Text */;
-val* var8 /* : Text */;
+short int var4 /* : Bool */;
+val* var5 /* : Text */;
+val* var7 /* : Text */;
 val* var_target /* var target: FlatString */;
-long var9 /* : Int */;
+long var8 /* : Int */;
+long var10 /* : Int */;
 long var11 /* : Int */;
-long var12 /* : Int */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-const char* var_class_name17;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+const char* var_class_name16;
+long var17 /* : Int */;
 long var18 /* : Int */;
-long var19 /* : Int */;
-long var21 /* : Int */;
-short int var22 /* : Bool */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-const char* var_class_name27;
-short int var28 /* : Bool */;
-char* var29 /* : NativeString */;
-char* var31 /* : NativeString */;
-long var32 /* : Int */;
+long var20 /* : Int */;
+short int var21 /* : Bool */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+short int var27 /* : Bool */;
+char* var28 /* : NativeString */;
+char* var30 /* : NativeString */;
+long var31 /* : Int */;
+long var33 /* : Int */;
 long var34 /* : Int */;
-long var35 /* : Int */;
-short int var37 /* : Bool */;
-int cltype38;
-int idtype39;
-const char* var_class_name40;
-long var41 /* : Int */;
-char var42 /* : Char */;
-char var44 /* : Char */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+const char* var_class_name39;
+long var40 /* : Int */;
+uint32_t var41 /* : Char */;
+uint32_t var43 /* : Char */;
 var_index = p0;
-var1 = 0;
 {
-{ /* Inline kernel#Int#>= (var_index,var1) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_index,0l) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_index >= var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_index >= 0l;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1386);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1528);
+fatal_exit(1);
 }
 {
 { /* Inline string#StringCharView#target (self) on <self:FlatStringCharView> */
-var8 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatStringCharView> */
-if (unlikely(var8 == NULL)) {
+var7 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatStringCharView> */
+if (unlikely(var7 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
-var6 = var8;
-RET_LABEL7:(void)0;
+var5 = var7;
+RET_LABEL6:(void)0;
 }
 }
-var_target = var6;
+var_target = var5;
 {
 { /* Inline string#FlatString#index_from (var_target) on <var_target:FlatString> */
-var11 = var_target->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_target:FlatString> */
-var9 = var11;
-RET_LABEL10:(void)0;
+var10 = var_target->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_target:FlatString> */
+var8 = var10;
+RET_LABEL9:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var_index,var9) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var9:Int> isa OTHER */
-/* <var9:Int> isa OTHER */
-var14 = 1; /* easy <var9:Int> isa OTHER*/
-if (unlikely(!var14)) {
-var_class_name17 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_index,var8) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <var8:Int> isa OTHER */
+/* <var8:Int> isa OTHER */
+var13 = 1; /* easy <var8:Int> isa OTHER*/
+if (unlikely(!var13)) {
+var_class_name16 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var18 = var_index + var9;
-var12 = var18;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+var17 = var_index + var8;
+var11 = var17;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_to (var_target) on <var_target:FlatString> */
-var21 = var_target->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <var_target:FlatString> */
-var19 = var21;
-RET_LABEL20:(void)0;
+var20 = var_target->attrs[COLOR_standard__string__FlatString___index_to].l; /* _index_to on <var_target:FlatString> */
+var18 = var20;
+RET_LABEL19:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#<= (var12,var19) on <var12:Int> */
-/* Covariant cast for argument 0 (i) <var19:Int> isa OTHER */
-/* <var19:Int> isa OTHER */
-var24 = 1; /* easy <var19:Int> isa OTHER*/
-if (unlikely(!var24)) {
-var_class_name27 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+{ /* Inline kernel#Int#<= (var11,var18) on <var11:Int> */
+/* Covariant cast for argument 0 (i) <var18:Int> isa OTHER */
+/* <var18:Int> isa OTHER */
+var23 = 1; /* easy <var18:Int> isa OTHER*/
+if (unlikely(!var23)) {
+var_class_name26 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var28 = var12 <= var19;
-var22 = var28;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
+var27 = var11 <= var18;
+var21 = var27;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
 }
-if (unlikely(!var22)) {
+if (unlikely(!var21)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1388);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1530);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatText#items (var_target) on <var_target:FlatString> */
-var31 = var_target->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_target:FlatString> */
-var29 = var31;
-RET_LABEL30:(void)0;
+var30 = var_target->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_target:FlatString> */
+var28 = var30;
+RET_LABEL29:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_from (var_target) on <var_target:FlatString> */
-var34 = var_target->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_target:FlatString> */
-var32 = var34;
-RET_LABEL33:(void)0;
+var33 = var_target->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_target:FlatString> */
+var31 = var33;
+RET_LABEL32:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var_index,var32) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var32:Int> isa OTHER */
-/* <var32:Int> isa OTHER */
-var37 = 1; /* easy <var32:Int> isa OTHER*/
-if (unlikely(!var37)) {
-var_class_name40 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_index,var31) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <var31:Int> isa OTHER */
+/* <var31:Int> isa OTHER */
+var36 = 1; /* easy <var31:Int> isa OTHER*/
+if (unlikely(!var36)) {
+var_class_name39 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var41 = var_index + var32;
-var35 = var41;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+var40 = var_index + var31;
+var34 = var40;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[] (var29,var35) on <var29:NativeString> */
-var44 = var29[var35];
-var42 = var44;
-goto RET_LABEL43;
-RET_LABEL43:(void)0;
+{ /* Inline string#NativeString#[] (var28,var34) on <var28:NativeString> */
+var43 = (uint32_t)(unsigned char)var28[var34];
+var41 = var43;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
 }
-var = var42;
+var = var41;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -6578,10 +6641,10 @@ return var;
 /* method string#FlatStringCharView#[] for (self: SequenceRead[nullable Object], Int): nullable Object */
 val* VIRTUAL_standard__string___standard__string__FlatStringCharView___standard__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
 val* var /* : nullable Object */;
-char var1 /* : Char */;
+uint32_t var1 /* : Char */;
 val* var2 /* : nullable Object */;
 var1 = standard__string___standard__string__FlatStringCharView___standard__abstract_collection__SequenceRead___91d_93d(self, p0);
-var2 = BOX_standard__Char(var1); /* autobox from Char to nullable Object */
+var2 = (val*)((long)(var1)<<2|2);
 var = var2;
 RET_LABEL:;
 return var;
@@ -6600,8 +6663,8 @@ var1 = NEW_standard__string__FlatStringIterator(&type_standard__string__FlatStri
 var4 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatStringCharView> */
 if (unlikely(var4 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var2 = var4;
 RET_LABEL3:(void)0;
@@ -6615,6 +6678,39 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
+/* method string#Buffer#new for (self: Buffer): Buffer */
+val* standard___standard__Buffer___new(val* self) {
+val* var /* : Buffer */;
+val* var1 /* : FlatBuffer */;
+var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
+{
+{ /* Inline string#FlatBuffer#init (var1) on <var1:FlatBuffer> */
+{
+((void(*)(val* self))(var1->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var1); /* init on <var1:FlatBuffer>*/
+}
+RET_LABEL2:(void)0;
+}
+}
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Buffer#with_cap for (self: Buffer, Int): Buffer */
+val* standard___standard__Buffer___with_cap(val* self, long p0) {
+val* var /* : Buffer */;
+long var_i /* var i: Int */;
+val* var1 /* : FlatBuffer */;
+var_i = p0;
+var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
+{
+standard___standard__FlatBuffer___with_capacity(var1, var_i); /* Direct call string#FlatBuffer#with_capacity on <var1:FlatBuffer>*/
+}
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
 /* method string#Buffer#is_dirty for (self: Buffer): Bool */
 short int standard___standard__Buffer___is_dirty(val* self) {
 short int var /* : Bool */;
@@ -6629,18 +6725,36 @@ void standard___standard__Buffer___is_dirty_61d(val* self, short int p0) {
 self->attrs[COLOR_standard__string__Buffer___is_dirty].s = p0; /* _is_dirty on <self:Buffer> */
 RET_LABEL:;
 }
-/* method string#Buffer#written for (self: Buffer): Bool */
-short int standard___standard__Buffer___written(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_standard__string__Buffer___written].s; /* _written on <self:Buffer> */
-var = var1;
+/* method string#Buffer#written= for (self: Buffer, Bool) */
+void standard___standard__Buffer___written_61d(val* self, short int p0) {
+self->attrs[COLOR_standard__string__Buffer___written].s = p0; /* _written on <self:Buffer> */
+RET_LABEL:;
+}
+/* method string#Buffer#add for (self: Buffer, Char) */
+void standard___standard__Buffer___add(val* self, uint32_t p0) {
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "add", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1568);
+fatal_exit(1);
+RET_LABEL:;
+}
+/* method string#Buffer#enlarge for (self: Buffer, Int) */
+void standard___standard__Buffer___enlarge(val* self, long p0) {
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "enlarge", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1582);
+fatal_exit(1);
 RET_LABEL:;
-return var;
 }
-/* method string#Buffer#written= for (self: Buffer, Bool) */
-void standard___standard__Buffer___written_61d(val* self, short int p0) {
-self->attrs[COLOR_standard__string__Buffer___written].s = p0; /* _written on <self:Buffer> */
+/* method string#Buffer#append for (self: Buffer, Text) */
+void standard___standard__Buffer___append(val* self, val* p0) {
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "append", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1585);
+fatal_exit(1);
 RET_LABEL:;
 }
 /* method string#Buffer#hash for (self: Buffer): Int */
@@ -6648,8 +6762,7 @@ long standard___standard__Buffer___standard__kernel__Object__hash(val* self) {
 long var /* : Int */;
 short int var1 /* : Bool */;
 short int var3 /* : Bool */;
-val* var4 /* : null */;
-long var6 /* : Int */;
+long var5 /* : Int */;
 {
 { /* Inline string#Buffer#is_dirty (self) on <self:Buffer> */
 var3 = self->attrs[COLOR_standard__string__Buffer___is_dirty].s; /* _is_dirty on <self:Buffer> */
@@ -6658,34 +6771,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-var4 = NULL;
 {
-{ /* Inline string#Text#hash_cache= (self,var4) on <self:Buffer> */
-self->attrs[COLOR_standard__string__Text___hash_cache].val = var4; /* _hash_cache on <self:Buffer> */
-RET_LABEL5:(void)0;
+{ /* Inline string#Text#hash_cache= (self,((val*)NULL)) on <self:Buffer> */
+self->attrs[COLOR_standard__string__Text___hash_cache].val = ((val*)NULL); /* _hash_cache on <self:Buffer> */
+RET_LABEL4:(void)0;
 }
 }
 } else {
 }
 {
-var6 = ((long (*)(val* self))(self->class->vft[COLOR_standard___standard__Buffer___standard__kernel__Object__hash]))(self) /* hash on <self:Buffer>*/;
+var5 = ((long(*)(val* self))(self->class->vft[COLOR_standard___standard__Buffer___standard__kernel__Object__hash]))(self); /* hash on <self:Buffer>*/
 }
-var = var6;
+var = var5;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
+/* method string#Buffer#chars for (self: Buffer): Sequence[Char] */
+val* standard___standard__Buffer___Text__chars(val* self) {
+val* var /* : Sequence[Char] */;
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "chars", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1663);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
 /* method string#FlatBuffer#chars for (self: FlatBuffer): Sequence[Char] */
 val* standard___standard__FlatBuffer___Text__chars(val* self) {
 val* var /* : Sequence[Char] */;
-val* var1 /* : Sequence[Char] */;
-var1 = self->attrs[COLOR_standard__string__FlatBuffer___chars].val; /* _chars on <self:FlatBuffer> */
-if (unlikely(var1 == NULL)) {
+short int var1 /* : Bool */;
+val* var2 /* : Sequence[Char] */;
+val* var3 /* : FlatBufferCharView */;
+var1 = self->attrs[COLOR_standard__string__FlatBuffer___chars].val != NULL; /* _chars on <self:FlatBuffer> */
+if(likely(var1)) {
+var2 = self->attrs[COLOR_standard__string__FlatBuffer___chars].val; /* _chars on <self:FlatBuffer> */
+if (unlikely(var2 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1525);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1673);
+fatal_exit(1);
 }
-var = var1;
+} else {
+var3 = NEW_standard__string__FlatBufferCharView(&type_standard__string__FlatBufferCharView);
+{
+((void(*)(val* self, val* p0))(var3->class->vft[COLOR_standard__string__StringCharView__target_61d]))(var3, self); /* target= on <var3:FlatBufferCharView>*/
+}
+{
+((void(*)(val* self))(var3->class->vft[COLOR_standard__kernel__Object__init]))(var3); /* init on <var3:FlatBufferCharView>*/
+}
+self->attrs[COLOR_standard__string__FlatBuffer___chars].val = var3; /* _chars on <self:FlatBuffer> */
+var2 = var3;
+}
+var = var2;
 RET_LABEL:;
 return var;
 }
@@ -6703,379 +6841,267 @@ void standard___standard__FlatBuffer___capacity_61d(val* self, long p0) {
 self->attrs[COLOR_standard__string__FlatBuffer___capacity].l = p0; /* _capacity on <self:FlatBuffer> */
 RET_LABEL:;
 }
-/* method string#FlatBuffer#substrings for (self: FlatBuffer): Iterator[Text] */
+/* method string#FlatBuffer#substrings for (self: FlatBuffer): Iterator[FlatText] */
 val* standard___standard__FlatBuffer___Text__substrings(val* self) {
-val* var /* : Iterator[Text] */;
+val* var /* : Iterator[FlatText] */;
 val* var1 /* : FlatSubstringsIter */;
 var1 = NEW_standard__string__FlatSubstringsIter(&type_standard__string__FlatSubstringsIter);
 {
-((void (*)(val* self, val* p0))(var1->class->vft[COLOR_standard__string__FlatSubstringsIter__tgt_61d]))(var1, self) /* tgt= on <var1:FlatSubstringsIter>*/;
+((void(*)(val* self, val* p0))(var1->class->vft[COLOR_standard__string__FlatSubstringsIter__tgt_61d]))(var1, self); /* tgt= on <var1:FlatSubstringsIter>*/
 }
 {
-((void (*)(val* self))(var1->class->vft[COLOR_standard__kernel__Object__init]))(var1) /* init on <var1:FlatSubstringsIter>*/;
+((void(*)(val* self))(var1->class->vft[COLOR_standard__kernel__Object__init]))(var1); /* init on <var1:FlatSubstringsIter>*/
 }
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method string#FlatBuffer#reset for (self: FlatBuffer) */
-void standard___standard__FlatBuffer___reset(val* self) {
-char* var /* : NativeString */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-char* var4 /* : NativeString */;
-char* var6 /* : NativeString */;
-char* var_nns /* var nns: NativeString */;
-char* var7 /* : NativeString */;
-char* var9 /* : NativeString */;
-long var10 /* : Int */;
-long var12 /* : Int */;
-long var13 /* : Int */;
-long var14 /* : Int */;
-short int var17 /* : Bool */;
-var = NULL/*special!*/;
-{
-{ /* Inline string#FlatBuffer#capacity (self) on <self:FlatBuffer> */
-var3 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline string#NativeString#new (var,var1) on <var:NativeString> */
-var6 = (char*)nit_alloc(var1);
-var4 = var6;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
-}
-}
-var_nns = var4;
-{
-{ /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var9 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var7 = var9;
-RET_LABEL8:(void)0;
-}
-}
-{
-{ /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var12 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var10 = var12;
-RET_LABEL11:(void)0;
-}
-}
-var13 = 0;
-var14 = 0;
-{
-{ /* Inline string#NativeString#copy_to (var7,var_nns,var10,var13,var14) on <var7:NativeString> */
-memmove(var_nns+var14,var7+var13,var10);
-RET_LABEL15:(void)0;
-}
-}
-{
-{ /* Inline string#FlatText#items= (self,var_nns) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___items].str = var_nns; /* _items on <self:FlatBuffer> */
-RET_LABEL16:(void)0;
-}
-}
-var17 = 0;
-{
-{ /* Inline string#Buffer#written= (self,var17) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___written].s = var17; /* _written on <self:FlatBuffer> */
-RET_LABEL18:(void)0;
-}
-}
-RET_LABEL:;
-}
 /* method string#FlatBuffer#[] for (self: FlatBuffer, Int): Char */
-char standard___standard__FlatBuffer___Text___91d_93d(val* self, long p0) {
-char var /* : Char */;
+uint32_t standard___standard__FlatBuffer___Text___91d_93d(val* self, long p0) {
+uint32_t var /* : Char */;
 long var_index /* var index: Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var5 /* : Bool */;
-long var6 /* : Int */;
-long var8 /* : Int */;
-short int var9 /* : Bool */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-const char* var_class_name14;
-short int var15 /* : Bool */;
-char* var16 /* : NativeString */;
-char* var18 /* : NativeString */;
-char var19 /* : Char */;
-char var21 /* : Char */;
+short int var4 /* : Bool */;
+long var5 /* : Int */;
+long var7 /* : Int */;
+short int var8 /* : Bool */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+const char* var_class_name13;
+short int var14 /* : Bool */;
+char* var15 /* : NativeString */;
+char* var17 /* : NativeString */;
+uint32_t var18 /* : Char */;
+uint32_t var20 /* : Char */;
 var_index = p0;
-var1 = 0;
 {
-{ /* Inline kernel#Int#>= (var_index,var1) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_index,0l) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_index >= var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_index >= 0l;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1544);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1694);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var8 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var6 = var8;
-RET_LABEL7:(void)0;
+var7 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var5 = var7;
+RET_LABEL6:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var_index,var6) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
-/* <var6:Int> isa OTHER */
-var11 = 1; /* easy <var6:Int> isa OTHER*/
-if (unlikely(!var11)) {
-var_class_name14 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name14);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_index,var5) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <var5:Int> isa OTHER */
+/* <var5:Int> isa OTHER */
+var10 = 1; /* easy <var5:Int> isa OTHER*/
+if (unlikely(!var10)) {
+var_class_name13 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var15 = var_index < var6;
-var9 = var15;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+var14 = var_index < var5;
+var8 = var14;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
-if (unlikely(!var9)) {
+if (unlikely(!var8)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1545);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1695);
+fatal_exit(1);
 }
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var18 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var16 = var18;
-RET_LABEL17:(void)0;
+var17 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[] (var16,var_index) on <var16:NativeString> */
-var21 = var16[var_index];
-var19 = var21;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
+{ /* Inline string#NativeString#[] (var15,var_index) on <var15:NativeString> */
+var20 = (uint32_t)(unsigned char)var15[var_index];
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
 }
-var = var19;
+var = var18;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
 /* method string#FlatBuffer#add for (self: FlatBuffer, Char) */
-void standard___standard__FlatBuffer___Buffer__add(val* self, char p0) {
-char var_c /* var c: Char */;
-short int var /* : Bool */;
-long var2 /* : Int */;
+void standard___standard__FlatBuffer___Buffer__add(val* self, uint32_t p0) {
+uint32_t var_c /* var c: Char */;
+long var /* : Int */;
+long var3 /* : Int */;
 long var4 /* : Int */;
-long var5 /* : Int */;
-long var7 /* : Int */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
+long var6 /* : Int */;
+short int var7 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var11 /* : Bool */;
-long var12 /* : Int */;
+short int var10 /* : Bool */;
+long var11 /* : Int */;
+long var13 /* : Int */;
 long var14 /* : Int */;
-long var15 /* : Int */;
-long var16 /* : Int */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-const char* var_class_name21;
-long var22 /* : Int */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+const char* var_class_name19;
+long var20 /* : Int */;
+char* var21 /* : NativeString */;
 char* var23 /* : NativeString */;
-char* var25 /* : NativeString */;
+long var24 /* : Int */;
 long var26 /* : Int */;
-long var28 /* : Int */;
 val* var_ /* var : FlatBuffer */;
+long var28 /* : Int */;
 long var30 /* : Int */;
-long var32 /* : Int */;
-long var33 /* : Int */;
-long var34 /* : Int */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-const char* var_class_name39;
-long var40 /* : Int */;
+long var31 /* : Int */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
+long var37 /* : Int */;
 var_c = p0;
-var = 1;
 {
-{ /* Inline string#Buffer#is_dirty= (self,var) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___is_dirty].s = var; /* _is_dirty on <self:FlatBuffer> */
+{ /* Inline string#Buffer#is_dirty= (self,1) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__Buffer___is_dirty].s = 1; /* _is_dirty on <self:FlatBuffer> */
 RET_LABEL1:(void)0;
 }
 }
 {
 { /* Inline string#FlatBuffer#capacity (self) on <self:FlatBuffer> */
-var4 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
-var2 = var4;
-RET_LABEL3:(void)0;
+var3 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
+var = var3;
+RET_LABEL2:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var7 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var5 = var7;
-RET_LABEL6:(void)0;
+var6 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var4 = var6;
+RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#<= (var2,var5) on <var2:Int> */
-/* Covariant cast for argument 0 (i) <var5:Int> isa OTHER */
-/* <var5:Int> isa OTHER */
-var10 = 1; /* easy <var5:Int> isa OTHER*/
-if (unlikely(!var10)) {
+{ /* Inline kernel#Int#<= (var,var4) on <var:Int> */
+/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
+/* <var4:Int> isa OTHER */
+var9 = 1; /* easy <var4:Int> isa OTHER*/
+if (unlikely(!var9)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
-}
-var11 = var2 <= var5;
-var8 = var11;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
-}
-}
-if (var8){
-{
-{ /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var14 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var12 = var14;
-RET_LABEL13:(void)0;
-}
-}
-var15 = 5;
-{
-{ /* Inline kernel#Int#+ (var12,var15) on <var12:Int> */
-/* Covariant cast for argument 0 (i) <var15:Int> isa OTHER */
-/* <var15:Int> isa OTHER */
-var18 = 1; /* easy <var15:Int> isa OTHER*/
-if (unlikely(!var18)) {
-var_class_name21 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var22 = var12 + var15;
-var16 = var22;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
-}
-}
-{
-standard___standard__FlatBuffer___Buffer__enlarge(self, var16); /* Direct call string#FlatBuffer#enlarge on <self:FlatBuffer>*/
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-} else {
-}
-{
-{ /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var25 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var23 = var25;
-RET_LABEL24:(void)0;
+var10 = var <= var4;
+var7 = var10;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
 }
+if (var7){
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var28 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var26 = var28;
-RET_LABEL27:(void)0;
+var13 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var11 = var13;
+RET_LABEL12:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[]= (var23,var26,var_c) on <var23:NativeString> */
-var23[var26]=var_c;
-RET_LABEL29:(void)0;
+{ /* Inline kernel#Int#+ (var11,5l) on <var11:Int> */
+/* Covariant cast for argument 0 (i) <5l:Int> isa OTHER */
+/* <5l:Int> isa OTHER */
+var16 = 1; /* easy <5l:Int> isa OTHER*/
+if (unlikely(!var16)) {
+var_class_name19 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name19);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var20 = var11 + 5l;
+var14 = var20;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
-var_ = self;
 {
-{ /* Inline string#FlatText#length (var_) on <var_:FlatBuffer> */
-var32 = var_->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_:FlatBuffer> */
-var30 = var32;
-RET_LABEL31:(void)0;
+standard___standard__FlatBuffer___Buffer__enlarge(self, var14); /* Direct call string#FlatBuffer#enlarge on <self:FlatBuffer>*/
 }
+} else {
 }
-var33 = 1;
 {
-{ /* Inline kernel#Int#+ (var30,var33) on <var30:Int> */
-/* Covariant cast for argument 0 (i) <var33:Int> isa OTHER */
-/* <var33:Int> isa OTHER */
-var36 = 1; /* easy <var33:Int> isa OTHER*/
-if (unlikely(!var36)) {
-var_class_name39 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var40 = var30 + var33;
-var34 = var40;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
+{ /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
+var23 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var21 = var23;
+RET_LABEL22:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#length= (var_,var34) on <var_:FlatBuffer> */
-var_->attrs[COLOR_standard__string__FlatText___length].l = var34; /* _length on <var_:FlatBuffer> */
-RET_LABEL41:(void)0;
-}
+{ /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
+var26 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var24 = var26;
+RET_LABEL25:(void)0;
 }
-RET_LABEL:;
 }
-/* method string#FlatBuffer#clear for (self: FlatBuffer) */
-void standard___standard__FlatBuffer___Buffer__clear(val* self) {
-short int var /* : Bool */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
-long var5 /* : Int */;
-var = 1;
 {
-{ /* Inline string#Buffer#is_dirty= (self,var) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___is_dirty].s = var; /* _is_dirty on <self:FlatBuffer> */
-RET_LABEL1:(void)0;
+{ /* Inline string#NativeString#[]= (var21,var24,var_c) on <var21:NativeString> */
+var21[var24]=(unsigned char)var_c;
+RET_LABEL27:(void)0;
 }
 }
+var_ = self;
 {
-{ /* Inline string#Buffer#written (self) on <self:FlatBuffer> */
-var4 = self->attrs[COLOR_standard__string__Buffer___written].s; /* _written on <self:FlatBuffer> */
-var2 = var4;
-RET_LABEL3:(void)0;
+{ /* Inline string#FlatText#length (var_) on <var_:FlatBuffer> */
+var30 = var_->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_:FlatBuffer> */
+var28 = var30;
+RET_LABEL29:(void)0;
 }
 }
-if (var2){
 {
-standard___standard__FlatBuffer___reset(self); /* Direct call string#FlatBuffer#reset on <self:FlatBuffer>*/
+{ /* Inline kernel#Int#+ (var28,1l) on <var28:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var33 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var33)) {
+var_class_name36 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var37 = var28 + 1l;
+var31 = var37;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
-} else {
 }
-var5 = 0;
 {
-{ /* Inline string#FlatText#length= (self,var5) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___length].l = var5; /* _length on <self:FlatBuffer> */
-RET_LABEL6:(void)0;
+{ /* Inline string#FlatText#length= (var_,var31) on <var_:FlatBuffer> */
+var_->attrs[COLOR_standard__string__FlatText___length].l = var31; /* _length on <var_:FlatBuffer> */
+RET_LABEL38:(void)0;
 }
 }
 RET_LABEL:;
@@ -7083,17 +7109,13 @@ RET_LABEL:;
 /* method string#FlatBuffer#empty for (self: FlatBuffer): Buffer */
 val* standard___standard__FlatBuffer___Text__empty(val* self) {
 val* var /* : Buffer */;
-val* var1 /* : FlatBuffer */;
-var1 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
-{
-{ /* Inline string#FlatBuffer#init (var1) on <var1:FlatBuffer> */
+val* var1 /* : Buffer */;
+val* var2 /* : Buffer */;
+var1 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-((void (*)(val* self))(var1->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var1) /* init on <var1:FlatBuffer>*/;
-}
-RET_LABEL2:(void)0;
-}
+var2 = standard___standard__Buffer___new(var1);
 }
-var = var1;
+var = var2;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -7117,46 +7139,39 @@ int idtype11;
 const char* var_class_name12;
 short int var13 /* : Bool */;
 long var14 /* : Int */;
-long var15 /* : Int */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-const char* var_class_name20;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+const char* var_class_name19;
+long var20 /* : Int */;
 long var21 /* : Int */;
-long var22 /* : Int */;
-long var23 /* : Int */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
-long var29 /* : Int */;
-short int var30 /* : Bool */;
-char* var32 /* : NativeString */;
-long var33 /* : Int */;
-long var34 /* : Int */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-const char* var_class_name39;
-long var40 /* : Int */;
-char* var41 /* : NativeString */;
-char* var43 /* : NativeString */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+long var27 /* : Int */;
+char* var29 /* : NativeString */;
+long var30 /* : Int */;
+short int var32 /* : Bool */;
+int cltype33;
+int idtype34;
+const char* var_class_name35;
+long var36 /* : Int */;
+char* var37 /* : NativeString */;
+char* var39 /* : NativeString */;
 char* var_a /* var a: NativeString */;
-long var44 /* : Int */;
-long var46 /* : Int */;
-long var47 /* : Int */;
-short int var48 /* : Bool */;
-short int var50 /* : Bool */;
-int cltype51;
-int idtype52;
-const char* var_class_name53;
-short int var54 /* : Bool */;
-char* var55 /* : NativeString */;
-char* var57 /* : NativeString */;
-long var58 /* : Int */;
-long var60 /* : Int */;
-long var61 /* : Int */;
-long var62 /* : Int */;
+long var40 /* : Int */;
+long var42 /* : Int */;
+short int var43 /* : Bool */;
+short int var45 /* : Bool */;
+int cltype46;
+int idtype47;
+const char* var_class_name48;
+short int var49 /* : Bool */;
+char* var50 /* : NativeString */;
+char* var52 /* : NativeString */;
+long var53 /* : Int */;
+long var55 /* : Int */;
 var_cap = p0;
 {
 { /* Inline string#FlatBuffer#capacity (self) on <self:FlatBuffer> */
@@ -7174,8 +7189,8 @@ var5 = 1; /* easy <var_c:Int> isa OTHER*/
 if (unlikely(!var5)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
 var6 = var_cap <= var_c;
 var3 = var6;
@@ -7196,8 +7211,8 @@ var9 = 1; /* easy <var_cap:Int> isa OTHER*/
 if (unlikely(!var9)) {
 var_class_name12 = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name12);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
 var13 = var_c <= var_cap;
 var7 = var13;
@@ -7206,129 +7221,122 @@ RET_LABEL8:(void)0;
 }
 }
 if (var7){
-var14 = 2;
 {
-{ /* Inline kernel#Int#* (var_c,var14) on <var_c:Int> */
-/* Covariant cast for argument 0 (i) <var14:Int> isa OTHER */
-/* <var14:Int> isa OTHER */
-var17 = 1; /* easy <var14:Int> isa OTHER*/
-if (unlikely(!var17)) {
-var_class_name20 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 417);
-show_backtrace(1);
+{ /* Inline kernel#Int#* (var_c,2l) on <var_c:Int> */
+/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
+/* <2l:Int> isa OTHER */
+var16 = 1; /* easy <2l:Int> isa OTHER*/
+if (unlikely(!var16)) {
+var_class_name19 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name19);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 541);
+fatal_exit(1);
 }
-var21 = var_c * var14;
-var15 = var21;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
+var20 = var_c * 2l;
+var14 = var20;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
-var22 = 2;
 {
-{ /* Inline kernel#Int#+ (var15,var22) on <var15:Int> */
-/* Covariant cast for argument 0 (i) <var22:Int> isa OTHER */
-/* <var22:Int> isa OTHER */
-var25 = 1; /* easy <var22:Int> isa OTHER*/
-if (unlikely(!var25)) {
-var_class_name28 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var14,2l) on <var14:Int> */
+/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
+/* <2l:Int> isa OTHER */
+var23 = 1; /* easy <2l:Int> isa OTHER*/
+if (unlikely(!var23)) {
+var_class_name26 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var29 = var15 + var22;
-var23 = var29;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+var27 = var14 + 2l;
+var21 = var27;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
 }
-var_c = var23;
+var_c = var21;
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
-var30 = 0;
 {
-{ /* Inline string#Buffer#written= (self,var30) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___written].s = var30; /* _written on <self:FlatBuffer> */
-RET_LABEL31:(void)0;
+{ /* Inline string#Buffer#written= (self,0) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__Buffer___written].s = 0; /* _written on <self:FlatBuffer> */
+RET_LABEL28:(void)0;
 }
 }
-var32 = NULL/*special!*/;
-var33 = 1;
+var29 = NULL/*special!*/;
 {
-{ /* Inline kernel#Int#+ (var_c,var33) on <var_c:Int> */
-/* Covariant cast for argument 0 (i) <var33:Int> isa OTHER */
-/* <var33:Int> isa OTHER */
-var36 = 1; /* easy <var33:Int> isa OTHER*/
-if (unlikely(!var36)) {
-var_class_name39 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_c,1l) on <var_c:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var32 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var32)) {
+var_class_name35 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name35);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var40 = var_c + var33;
-var34 = var40;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
+var36 = var_c + 1l;
+var30 = var36;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var32,var34) on <var32:NativeString> */
-var43 = (char*)nit_alloc(var34);
-var41 = var43;
-goto RET_LABEL42;
-RET_LABEL42:(void)0;
+{ /* Inline string#NativeString#new (var29,var30) on <var29:NativeString> */
+var39 = (char*)nit_alloc(var30);
+var37 = var39;
+goto RET_LABEL38;
+RET_LABEL38:(void)0;
 }
 }
-var_a = var41;
+var_a = var37;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var46 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var44 = var46;
-RET_LABEL45:(void)0;
+var42 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var40 = var42;
+RET_LABEL41:(void)0;
 }
 }
-var47 = 0;
 {
-{ /* Inline kernel#Int#> (var44,var47) on <var44:Int> */
-/* Covariant cast for argument 0 (i) <var47:Int> isa OTHER */
-/* <var47:Int> isa OTHER */
-var50 = 1; /* easy <var47:Int> isa OTHER*/
-if (unlikely(!var50)) {
-var_class_name53 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
+{ /* Inline kernel#Int#> (var40,0l) on <var40:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var45 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var45)) {
+var_class_name48 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
 }
-var54 = var44 > var47;
-var48 = var54;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var49 = var40 > 0l;
+var43 = var49;
+goto RET_LABEL44;
+RET_LABEL44:(void)0;
 }
 }
-if (var48){
+if (var43){
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var57 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var55 = var57;
-RET_LABEL56:(void)0;
+var52 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var50 = var52;
+RET_LABEL51:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var60 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var58 = var60;
-RET_LABEL59:(void)0;
+var55 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var53 = var55;
+RET_LABEL54:(void)0;
 }
 }
-var61 = 0;
-var62 = 0;
 {
-{ /* Inline string#NativeString#copy_to (var55,var_a,var58,var61,var62) on <var55:NativeString> */
-memmove(var_a+var62,var55+var61,var58);
-RET_LABEL63:(void)0;
+{ /* Inline string#NativeString#copy_to (var50,var_a,var53,0l,0l) on <var50:NativeString> */
+memmove(var_a+0l,var50+0l,var53);
+RET_LABEL56:(void)0;
 }
 }
 } else {
@@ -7336,13 +7344,13 @@ RET_LABEL63:(void)0;
 {
 { /* Inline string#FlatText#items= (self,var_a) on <self:FlatBuffer> */
 self->attrs[COLOR_standard__string__FlatText___items].str = var_a; /* _items on <self:FlatBuffer> */
-RET_LABEL64:(void)0;
+RET_LABEL57:(void)0;
 }
 }
 {
 { /* Inline string#FlatBuffer#capacity= (self,var_c) on <self:FlatBuffer> */
 self->attrs[COLOR_standard__string__FlatBuffer___capacity].l = var_c; /* _capacity on <self:FlatBuffer> */
-RET_LABEL65:(void)0;
+RET_LABEL58:(void)0;
 }
 }
 RET_LABEL:;
@@ -7350,77 +7358,76 @@ RET_LABEL:;
 /* method string#FlatBuffer#to_s for (self: FlatBuffer): String */
 val* standard___standard__FlatBuffer___Object__to_s(val* self) {
 val* var /* : String */;
-short int var1 /* : Bool */;
-long var3 /* : Int */;
-long var5 /* : Int */;
-long var6 /* : Int */;
+long var2 /* : Int */;
+long var4 /* : Int */;
+short int var5 /* : Bool */;
 short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-char* var10 /* : NativeString */;
-long var11 /* : Int */;
-char* var12 /* : NativeString */;
+char* var8 /* : NativeString */;
+char* var9 /* : NativeString */;
+char* var11 /* : NativeString */;
+val* var13 /* : FlatString */;
 char* var14 /* : NativeString */;
-val* var16 /* : FlatString */;
-char* var17 /* : NativeString */;
-char* var19 /* : NativeString */;
+char* var16 /* : NativeString */;
+long var17 /* : Int */;
+long var19 /* : Int */;
 long var20 /* : Int */;
 long var22 /* : Int */;
 long var23 /* : Int */;
-long var24 /* : Int */;
-long var26 /* : Int */;
-long var27 /* : Int */;
-long var28 /* : Int */;
-short int var30 /* : Bool */;
+short int var25 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var31 /* : Int */;
-var1 = 1;
+long var26 /* : Int */;
 {
-{ /* Inline string#Buffer#written= (self,var1) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___written].s = var1; /* _written on <self:FlatBuffer> */
-RET_LABEL2:(void)0;
+{ /* Inline string#Buffer#written= (self,1) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__Buffer___written].s = 1; /* _written on <self:FlatBuffer> */
+RET_LABEL1:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var5 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var3 = var5;
-RET_LABEL4:(void)0;
+var4 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var2 = var4;
+RET_LABEL3:(void)0;
 }
 }
-var6 = 0;
 {
-{ /* Inline kernel#Int#== (var3,var6) on <var3:Int> */
-var9 = var3 == var6;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+{ /* Inline kernel#Int#== (var2,0l) on <var2:Int> */
+var7 = var2 == 0l;
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-if (var7){
-var10 = NULL/*special!*/;
-var11 = 1;
+if (var5){
+var8 = NULL/*special!*/;
 {
-{ /* Inline string#NativeString#new (var10,var11) on <var10:NativeString> */
-var14 = (char*)nit_alloc(var11);
-var12 = var14;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+{ /* Inline string#NativeString#new (var8,1l) on <var8:NativeString> */
+var11 = (char*)nit_alloc(1l);
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#items= (self,var12) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___items].str = var12; /* _items on <self:FlatBuffer> */
-RET_LABEL15:(void)0;
+{ /* Inline string#FlatText#items= (self,var9) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___items].str = var9; /* _items on <self:FlatBuffer> */
+RET_LABEL12:(void)0;
 }
 }
 } else {
 }
-var16 = NEW_standard__FlatString(&type_standard__FlatString);
+var13 = NEW_standard__FlatString(&type_standard__FlatString);
+{
+{ /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
+var16 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var14 = var16;
+RET_LABEL15:(void)0;
+}
+}
 {
-{ /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var19 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+{ /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
+var19 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
 var17 = var19;
 RET_LABEL18:(void)0;
 }
@@ -7432,36 +7439,27 @@ var20 = var22;
 RET_LABEL21:(void)0;
 }
 }
-var23 = 0;
-{
-{ /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var26 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var24 = var26;
-RET_LABEL25:(void)0;
-}
-}
-var27 = 1;
 {
-{ /* Inline kernel#Int#- (var24,var27) on <var24:Int> */
-/* Covariant cast for argument 0 (i) <var27:Int> isa OTHER */
-/* <var27:Int> isa OTHER */
-var30 = 1; /* easy <var27:Int> isa OTHER*/
-if (unlikely(!var30)) {
+{ /* Inline kernel#Int#- (var20,1l) on <var20:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var25 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var25)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var31 = var24 - var27;
-var28 = var31;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+var26 = var20 - 1l;
+var23 = var26;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
 }
 {
-standard___standard__FlatString___with_infos(var16, var17, var20, var23, var28); /* Direct call string#FlatString#with_infos on <var16:FlatString>*/
+standard___standard__FlatString___with_infos(var13, var14, var17, 0l, var23); /* Direct call string#FlatString#with_infos on <var13:FlatString>*/
 }
-var = var16;
+var = var13;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -7475,38 +7473,32 @@ char* var4 /* : NativeString */;
 long var5 /* : Int */;
 long var7 /* : Int */;
 long var8 /* : Int */;
-long var9 /* : Int */;
-short int var11 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var12 /* : Int */;
-char* var13 /* : NativeString */;
-char* var15 /* : NativeString */;
+long var11 /* : Int */;
+char* var12 /* : NativeString */;
+char* var14 /* : NativeString */;
 char* var_new_native /* var new_native: NativeString */;
-long var16 /* : Int */;
-long var18 /* : Int */;
-char var19 /* : Char */;
+long var15 /* : Int */;
+long var17 /* : Int */;
+long var19 /* : Int */;
 long var21 /* : Int */;
-long var23 /* : Int */;
-long var24 /* : Int */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-const char* var_class_name30;
-short int var31 /* : Bool */;
-char* var32 /* : NativeString */;
-char* var34 /* : NativeString */;
-long var35 /* : Int */;
-long var37 /* : Int */;
-long var38 /* : Int */;
-long var39 /* : Int */;
-val* var42 /* : nullable NativeString */;
-short int var43 /* : Bool */;
-val* var45 /* : nullable NativeString */;
-val* var47 /* : nullable NativeString */;
-char* var48 /* : NativeString */;
+short int var22 /* : Bool */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+const char* var_class_name27;
+short int var28 /* : Bool */;
+char* var29 /* : NativeString */;
+char* var31 /* : NativeString */;
+long var32 /* : Int */;
+long var34 /* : Int */;
+val* var37 /* : nullable NativeString */;
+val* var39 /* : nullable NativeString */;
+val* var41 /* : nullable NativeString */;
+char* var42 /* : NativeString */;
 {
 { /* Inline string#Buffer#is_dirty (self) on <self:FlatBuffer> */
 var3 = self->attrs[COLOR_standard__string__Buffer___is_dirty].s; /* _is_dirty on <self:FlatBuffer> */
@@ -7523,127 +7515,121 @@ var5 = var7;
 RET_LABEL6:(void)0;
 }
 }
-var8 = 1;
 {
-{ /* Inline kernel#Int#+ (var5,var8) on <var5:Int> */
-/* Covariant cast for argument 0 (i) <var8:Int> isa OTHER */
-/* <var8:Int> isa OTHER */
-var11 = 1; /* easy <var8:Int> isa OTHER*/
-if (unlikely(!var11)) {
+{ /* Inline kernel#Int#+ (var5,1l) on <var5:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var10 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var10)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var12 = var5 + var8;
-var9 = var12;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+var11 = var5 + 1l;
+var8 = var11;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var4,var9) on <var4:NativeString> */
-var15 = (char*)nit_alloc(var9);
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+{ /* Inline string#NativeString#new (var4,var8) on <var4:NativeString> */
+var14 = (char*)nit_alloc(var8);
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-var_new_native = var13;
+var_new_native = var12;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var18 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var16 = var18;
-RET_LABEL17:(void)0;
+var17 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
-var19 = '\0';
 {
-{ /* Inline string#NativeString#[]= (var_new_native,var16,var19) on <var_new_native:NativeString> */
-var_new_native[var16]=var19;
-RET_LABEL20:(void)0;
+{ /* Inline string#NativeString#[]= (var_new_native,var15,'\000') on <var_new_native:NativeString> */
+var_new_native[var15]=(unsigned char)'\000';
+RET_LABEL18:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var23 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var21 = var23;
-RET_LABEL22:(void)0;
+var21 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var19 = var21;
+RET_LABEL20:(void)0;
 }
 }
-var24 = 0;
 {
-{ /* Inline kernel#Int#> (var21,var24) on <var21:Int> */
-/* Covariant cast for argument 0 (i) <var24:Int> isa OTHER */
-/* <var24:Int> isa OTHER */
-var27 = 1; /* easy <var24:Int> isa OTHER*/
-if (unlikely(!var27)) {
-var_class_name30 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name30);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
-}
-var31 = var21 > var24;
-var25 = var31;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+{ /* Inline kernel#Int#> (var19,0l) on <var19:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var24 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var24)) {
+var_class_name27 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
+}
+var28 = var19 > 0l;
+var22 = var28;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
-if (var25){
+if (var22){
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var34 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var32 = var34;
-RET_LABEL33:(void)0;
+var31 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var29 = var31;
+RET_LABEL30:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var37 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var35 = var37;
-RET_LABEL36:(void)0;
+var34 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var32 = var34;
+RET_LABEL33:(void)0;
 }
 }
-var38 = 0;
-var39 = 0;
 {
-{ /* Inline string#NativeString#copy_to (var32,var_new_native,var35,var38,var39) on <var32:NativeString> */
-memmove(var_new_native+var39,var32+var38,var35);
-RET_LABEL40:(void)0;
+{ /* Inline string#NativeString#copy_to (var29,var_new_native,var32,0l,0l) on <var29:NativeString> */
+memmove(var_new_native+0l,var29+0l,var32);
+RET_LABEL35:(void)0;
 }
 }
 } else {
 }
 {
 { /* Inline string#FlatText#real_items= (self,var_new_native) on <self:FlatBuffer> */
-var42 = BOX_standard__NativeString(var_new_native); /* autobox from NativeString to nullable NativeString */
-self->attrs[COLOR_standard__string__FlatText___real_items].val = var42; /* _real_items on <self:FlatBuffer> */
-RET_LABEL41:(void)0;
+var37 = BOX_standard__NativeString(var_new_native); /* autobox from NativeString to nullable NativeString */
+self->attrs[COLOR_standard__string__FlatText___real_items].val = var37; /* _real_items on <self:FlatBuffer> */
+RET_LABEL36:(void)0;
 }
 }
-var43 = 0;
 {
-{ /* Inline string#Buffer#is_dirty= (self,var43) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___is_dirty].s = var43; /* _is_dirty on <self:FlatBuffer> */
-RET_LABEL44:(void)0;
+{ /* Inline string#Buffer#is_dirty= (self,0) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__Buffer___is_dirty].s = 0; /* _is_dirty on <self:FlatBuffer> */
+RET_LABEL38:(void)0;
 }
 }
 } else {
 }
 {
 { /* Inline string#FlatText#real_items (self) on <self:FlatBuffer> */
-var47 = self->attrs[COLOR_standard__string__FlatText___real_items].val; /* _real_items on <self:FlatBuffer> */
-var45 = var47;
-RET_LABEL46:(void)0;
+var41 = self->attrs[COLOR_standard__string__FlatText___real_items].val; /* _real_items on <self:FlatBuffer> */
+var39 = var41;
+RET_LABEL40:(void)0;
 }
 }
-if (unlikely(var45 == NULL)) {
+if (unlikely(var39 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1607);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1756);
+fatal_exit(1);
 }
-var48 = ((struct instance_standard__NativeString*)var45)->value; /* autounbox from nullable NativeString to NativeString */;
-var = var48;
+var42 = ((struct instance_standard__NativeString*)var39)->value; /* autounbox from nullable NativeString to NativeString */;
+var = var42;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -7651,7 +7637,43 @@ return var;
 /* method string#FlatBuffer#init for (self: FlatBuffer) */
 void standard___standard__FlatBuffer___standard__kernel__Object__init(val* self) {
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self) /* init on <self:FlatBuffer>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self); /* init on <self:FlatBuffer>*/
+}
+RET_LABEL:;
+}
+/* method string#FlatBuffer#with_infos for (self: FlatBuffer, NativeString, Int, Int) */
+void standard___standard__FlatBuffer___with_infos(val* self, char* p0, long p1, long p2) {
+char* var_items /* var items: NativeString */;
+long var_capacity /* var capacity: Int */;
+long var_length /* var length: Int */;
+{
+{ /* Inline string#FlatBuffer#init (self) on <self:FlatBuffer> */
+{
+((void(*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self); /* init on <self:FlatBuffer>*/
+}
+RET_LABEL1:(void)0;
+}
+}
+var_items = p0;
+var_capacity = p1;
+var_length = p2;
+{
+{ /* Inline string#FlatText#items= (self,var_items) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___items].str = var_items; /* _items on <self:FlatBuffer> */
+RET_LABEL2:(void)0;
+}
+}
+{
+{ /* Inline string#FlatText#length= (self,var_length) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___length].l = var_length; /* _length on <self:FlatBuffer> */
+RET_LABEL3:(void)0;
+}
+}
+{
+{ /* Inline string#FlatBuffer#capacity= (self,var_capacity) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatBuffer___capacity].l = var_capacity; /* _capacity on <self:FlatBuffer> */
+RET_LABEL4:(void)0;
+}
 }
 RET_LABEL:;
 }
@@ -7660,291 +7682,275 @@ void standard___standard__FlatBuffer___from(val* self, val* p0) {
 val* var_s /* var s: Text */;
 long var /* : Int */;
 long var2 /* : Int */;
-long var3 /* : Int */;
-short int var5 /* : Bool */;
+short int var4 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var6 /* : Int */;
-long var8 /* : Int */;
-char* var10 /* : NativeString */;
-long var11 /* : Int */;
-long var13 /* : Int */;
-char* var14 /* : NativeString */;
-char* var16 /* : NativeString */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-char* var21 /* : NativeString */;
+long var5 /* : Int */;
+long var7 /* : Int */;
+char* var9 /* : NativeString */;
+long var10 /* : Int */;
+long var12 /* : Int */;
+char* var13 /* : NativeString */;
+char* var15 /* : NativeString */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+char* var20 /* : NativeString */;
+char* var22 /* : NativeString */;
 char* var23 /* : NativeString */;
-char* var24 /* : NativeString */;
-char* var26 /* : NativeString */;
-long var27 /* : Int */;
+char* var25 /* : NativeString */;
+long var26 /* : Int */;
+long var28 /* : Int */;
 long var29 /* : Int */;
-long var30 /* : Int */;
-long var32 /* : Int */;
-long var33 /* : Int */;
-short int var35 /* : Bool */;
-int cltype36;
-int idtype37;
+long var31 /* : Int */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+char* var36 /* : NativeString */;
 char* var38 /* : NativeString */;
-char* var40 /* : NativeString */;
+char* var39 /* : NativeString */;
 char* var41 /* : NativeString */;
-char* var43 /* : NativeString */;
+long var42 /* : Int */;
 long var44 /* : Int */;
-long var46 /* : Int */;
-long var47 /* : Int */;
-long var48 /* : Int */;
-long var50 /* : Int */;
 long var_curr_pos /* var curr_pos: Int */;
-long var51 /* : Int */;
 long var_i /* var i: Int */;
-long var52 /* : Int */;
+long var46 /* : Int */;
 long var_ /* var : Int */;
+short int var47 /* : Bool */;
+short int var49 /* : Bool */;
+int cltype50;
+int idtype51;
+const char* var_class_name52;
 short int var53 /* : Bool */;
-short int var55 /* : Bool */;
-int cltype56;
-int idtype57;
-const char* var_class_name58;
-short int var59 /* : Bool */;
-val* var60 /* : SequenceRead[Char] */;
-val* var61 /* : nullable Object */;
-char var62 /* : Char */;
-char var_c /* var c: Char */;
-char* var63 /* : NativeString */;
-char* var65 /* : NativeString */;
+val* var54 /* : SequenceRead[Char] */;
+val* var55 /* : nullable Object */;
+uint32_t var56 /* : Char */;
+uint32_t var_c /* var c: Char */;
+char* var57 /* : NativeString */;
+char* var59 /* : NativeString */;
+long var61 /* : Int */;
+short int var63 /* : Bool */;
+int cltype64;
+int idtype65;
+const char* var_class_name66;
 long var67 /* : Int */;
 long var68 /* : Int */;
-short int var70 /* : Bool */;
-int cltype71;
-int idtype72;
-const char* var_class_name73;
-long var74 /* : Int */;
-long var75 /* : Int */;
-long var76 /* : Int */;
 {
 { /* Inline string#FlatBuffer#init (self) on <self:FlatBuffer> */
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self) /* init on <self:FlatBuffer>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self); /* init on <self:FlatBuffer>*/
 }
 RET_LABEL1:(void)0;
 }
 }
 var_s = p0;
 {
-var = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s) /* length on <var_s:Text>*/;
+var = ((long(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s); /* length on <var_s:Text>*/
 }
-var2 = 1;
 {
-{ /* Inline kernel#Int#+ (var,var2) on <var:Int> */
-/* Covariant cast for argument 0 (i) <var2:Int> isa OTHER */
-/* <var2:Int> isa OTHER */
-var5 = 1; /* easy <var2:Int> isa OTHER*/
-if (unlikely(!var5)) {
+{ /* Inline kernel#Int#+ (var,1l) on <var:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var4 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var4)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var6 = var + var2;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+var5 = var + 1l;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
 }
 {
-{ /* Inline string#FlatBuffer#capacity= (self,var3) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatBuffer___capacity].l = var3; /* _capacity on <self:FlatBuffer> */
-RET_LABEL7:(void)0;
+{ /* Inline string#FlatBuffer#capacity= (self,var2) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatBuffer___capacity].l = var2; /* _capacity on <self:FlatBuffer> */
+RET_LABEL6:(void)0;
 }
 }
 {
-var8 = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s) /* length on <var_s:Text>*/;
+var7 = ((long(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s); /* length on <var_s:Text>*/
 }
 {
-{ /* Inline string#FlatText#length= (self,var8) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___length].l = var8; /* _length on <self:FlatBuffer> */
-RET_LABEL9:(void)0;
+{ /* Inline string#FlatText#length= (self,var7) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___length].l = var7; /* _length on <self:FlatBuffer> */
+RET_LABEL8:(void)0;
 }
 }
-var10 = NULL/*special!*/;
+var9 = NULL/*special!*/;
 {
 { /* Inline string#FlatBuffer#capacity (self) on <self:FlatBuffer> */
-var13 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
-var11 = var13;
-RET_LABEL12:(void)0;
+var12 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
+var10 = var12;
+RET_LABEL11:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var10,var11) on <var10:NativeString> */
-var16 = (char*)nit_alloc(var11);
-var14 = var16;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+{ /* Inline string#NativeString#new (var9,var10) on <var9:NativeString> */
+var15 = (char*)nit_alloc(var10);
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#items= (self,var14) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___items].str = var14; /* _items on <self:FlatBuffer> */
-RET_LABEL17:(void)0;
+{ /* Inline string#FlatText#items= (self,var13) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___items].str = var13; /* _items on <self:FlatBuffer> */
+RET_LABEL16:(void)0;
 }
 }
 /* <var_s:Text> isa FlatString */
-cltype19 = type_standard__FlatString.color;
-idtype20 = type_standard__FlatString.id;
-if(cltype19 >= var_s->type->table_size) {
-var18 = 0;
+cltype18 = type_standard__FlatString.color;
+idtype19 = type_standard__FlatString.id;
+if(cltype18 >= var_s->type->table_size) {
+var17 = 0;
 } else {
-var18 = var_s->type->type_table[cltype19] == idtype20;
+var17 = var_s->type->type_table[cltype18] == idtype19;
 }
-if (var18){
+if (var17){
 {
 { /* Inline string#FlatText#items (var_s) on <var_s:Text(FlatString)> */
-var23 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatString)> */
-var21 = var23;
-RET_LABEL22:(void)0;
+var22 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatString)> */
+var20 = var22;
+RET_LABEL21:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var26 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var24 = var26;
-RET_LABEL25:(void)0;
+var25 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var23 = var25;
+RET_LABEL24:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var29 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var27 = var29;
-RET_LABEL28:(void)0;
+var28 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var26 = var28;
+RET_LABEL27:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_from (var_s) on <var_s:Text(FlatString)> */
-var32 = var_s->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_s:Text(FlatString)> */
-var30 = var32;
-RET_LABEL31:(void)0;
+var31 = var_s->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_s:Text(FlatString)> */
+var29 = var31;
+RET_LABEL30:(void)0;
 }
 }
-var33 = 0;
 {
-{ /* Inline string#NativeString#copy_to (var21,var24,var27,var30,var33) on <var21:NativeString> */
-memmove(var24+var33,var21+var30,var27);
-RET_LABEL34:(void)0;
+{ /* Inline string#NativeString#copy_to (var20,var23,var26,var29,0l) on <var20:NativeString> */
+memmove(var23+0l,var20+var29,var26);
+RET_LABEL32:(void)0;
 }
 }
 } else {
 /* <var_s:Text> isa FlatBuffer */
-cltype36 = type_standard__FlatBuffer.color;
-idtype37 = type_standard__FlatBuffer.id;
-if(cltype36 >= var_s->type->table_size) {
-var35 = 0;
+cltype34 = type_standard__FlatBuffer.color;
+idtype35 = type_standard__FlatBuffer.id;
+if(cltype34 >= var_s->type->table_size) {
+var33 = 0;
 } else {
-var35 = var_s->type->type_table[cltype36] == idtype37;
+var33 = var_s->type->type_table[cltype34] == idtype35;
 }
-if (var35){
+if (var33){
 {
 { /* Inline string#FlatText#items (var_s) on <var_s:Text(FlatBuffer)> */
-var40 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatBuffer)> */
-var38 = var40;
-RET_LABEL39:(void)0;
+var38 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatBuffer)> */
+var36 = var38;
+RET_LABEL37:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var43 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var41 = var43;
-RET_LABEL42:(void)0;
+var41 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var39 = var41;
+RET_LABEL40:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var46 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var44 = var46;
-RET_LABEL45:(void)0;
+var44 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var42 = var44;
+RET_LABEL43:(void)0;
 }
 }
-var47 = 0;
-var48 = 0;
 {
-{ /* Inline string#NativeString#copy_to (var38,var41,var44,var47,var48) on <var38:NativeString> */
-memmove(var41+var48,var38+var47,var44);
-RET_LABEL49:(void)0;
+{ /* Inline string#NativeString#copy_to (var36,var39,var42,0l,0l) on <var36:NativeString> */
+memmove(var39+0l,var36+0l,var42);
+RET_LABEL45:(void)0;
 }
 }
 } else {
-var50 = 0;
-var_curr_pos = var50;
-var51 = 0;
-var_i = var51;
+var_curr_pos = 0l;
+var_i = 0l;
 {
-var52 = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s) /* length on <var_s:Text>*/;
+var46 = ((long(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s); /* length on <var_s:Text>*/
 }
-var_ = var52;
+var_ = var46;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var55 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var55)) {
-var_class_name58 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name58);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
-}
-var59 = var_i < var_;
-var53 = var59;
-goto RET_LABEL54;
-RET_LABEL54:(void)0;
+var49 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var49)) {
+var_class_name52 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name52);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
+var53 = var_i < var_;
+var47 = var53;
+goto RET_LABEL48;
+RET_LABEL48:(void)0;
 }
-if (var53){
+}
+if (var47){
 {
-var60 = ((val* (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__chars]))(var_s) /* chars on <var_s:Text>*/;
+var54 = ((val*(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__chars]))(var_s); /* chars on <var_s:Text>*/
 }
 {
-var61 = ((val* (*)(val* self, long p0))(var60->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var60, var_i) /* [] on <var60:SequenceRead[Char]>*/;
+var55 = ((val*(*)(val* self, long p0))((((long)var54&3)?class_info[((long)var54&3)]:var54->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var54, var_i); /* [] on <var54:SequenceRead[Char]>*/
 }
-var62 = ((struct instance_standard__Char*)var61)->value; /* autounbox from nullable Object to Char */;
-var_c = var62;
+var56 = (uint32_t)((long)(var55)>>2);
+var_c = var56;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var65 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var63 = var65;
-RET_LABEL64:(void)0;
+var59 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var57 = var59;
+RET_LABEL58:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[]= (var63,var_curr_pos,var_c) on <var63:NativeString> */
-var63[var_curr_pos]=var_c;
-RET_LABEL66:(void)0;
+{ /* Inline string#NativeString#[]= (var57,var_curr_pos,var_c) on <var57:NativeString> */
+var57[var_curr_pos]=(unsigned char)var_c;
+RET_LABEL60:(void)0;
 }
 }
-var67 = 1;
 {
-{ /* Inline kernel#Int#+ (var_curr_pos,var67) on <var_curr_pos:Int> */
-/* Covariant cast for argument 0 (i) <var67:Int> isa OTHER */
-/* <var67:Int> isa OTHER */
-var70 = 1; /* easy <var67:Int> isa OTHER*/
-if (unlikely(!var70)) {
-var_class_name73 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name73);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_curr_pos,1l) on <var_curr_pos:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var63 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var63)) {
+var_class_name66 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name66);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var74 = var_curr_pos + var67;
-var68 = var74;
-goto RET_LABEL69;
-RET_LABEL69:(void)0;
+var67 = var_curr_pos + 1l;
+var61 = var67;
+goto RET_LABEL62;
+RET_LABEL62:(void)0;
 }
 }
-var_curr_pos = var68;
-var75 = 1;
+var_curr_pos = var61;
 {
-var76 = standard___standard__Int___Discrete__successor(var_i, var75);
+var68 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var76;
+var_i = var68;
 } else {
 goto BREAK_label;
 }
@@ -7957,100 +7963,94 @@ RET_LABEL:;
 /* method string#FlatBuffer#with_capacity for (self: FlatBuffer, Int) */
 void standard___standard__FlatBuffer___with_capacity(val* self, long p0) {
 long var_cap /* var cap: Int */;
-long var /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var5 /* : Bool */;
-char* var6 /* : NativeString */;
-long var7 /* : Int */;
-long var8 /* : Int */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
-const char* var_class_name13;
-long var14 /* : Int */;
+short int var4 /* : Bool */;
+char* var5 /* : NativeString */;
+long var6 /* : Int */;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
+const char* var_class_name11;
+long var12 /* : Int */;
+char* var13 /* : NativeString */;
 char* var15 /* : NativeString */;
-char* var17 /* : NativeString */;
-long var20 /* : Int */;
 {
 { /* Inline string#FlatBuffer#init (self) on <self:FlatBuffer> */
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self) /* init on <self:FlatBuffer>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(self); /* init on <self:FlatBuffer>*/
 }
 RET_LABEL1:(void)0;
 }
 }
 var_cap = p0;
-var = 0;
 {
-{ /* Inline kernel#Int#>= (var_cap,var) on <var_cap:Int> */
-/* Covariant cast for argument 0 (i) <var:Int> isa OTHER */
-/* <var:Int> isa OTHER */
-var4 = 1; /* easy <var:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_cap,0l) on <var_cap:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_cap >= var;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_cap >= 0l;
+var = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1636);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1799);
+fatal_exit(1);
 }
-var6 = NULL/*special!*/;
-var7 = 1;
+var5 = NULL/*special!*/;
 {
-{ /* Inline kernel#Int#+ (var_cap,var7) on <var_cap:Int> */
-/* Covariant cast for argument 0 (i) <var7:Int> isa OTHER */
-/* <var7:Int> isa OTHER */
-var10 = 1; /* easy <var7:Int> isa OTHER*/
-if (unlikely(!var10)) {
-var_class_name13 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_cap,1l) on <var_cap:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var8 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var8)) {
+var_class_name11 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name11);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var14 = var_cap + var7;
-var8 = var14;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var12 = var_cap + 1l;
+var6 = var12;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#new (var6,var8) on <var6:NativeString> */
-var17 = (char*)nit_alloc(var8);
-var15 = var17;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
+{ /* Inline string#NativeString#new (var5,var6) on <var5:NativeString> */
+var15 = (char*)nit_alloc(var6);
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#items= (self,var15) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___items].str = var15; /* _items on <self:FlatBuffer> */
-RET_LABEL18:(void)0;
+{ /* Inline string#FlatText#items= (self,var13) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___items].str = var13; /* _items on <self:FlatBuffer> */
+RET_LABEL16:(void)0;
 }
 }
 {
 { /* Inline string#FlatBuffer#capacity= (self,var_cap) on <self:FlatBuffer> */
 self->attrs[COLOR_standard__string__FlatBuffer___capacity].l = var_cap; /* _capacity on <self:FlatBuffer> */
-RET_LABEL19:(void)0;
+RET_LABEL17:(void)0;
 }
 }
-var20 = 0;
 {
-{ /* Inline string#FlatText#length= (self,var20) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__FlatText___length].l = var20; /* _length on <self:FlatBuffer> */
-RET_LABEL21:(void)0;
+{ /* Inline string#FlatText#length= (self,0l) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__FlatText___length].l = 0l; /* _length on <self:FlatBuffer> */
+RET_LABEL18:(void)0;
 }
 }
 RET_LABEL:;
@@ -8059,91 +8059,86 @@ RET_LABEL:;
 void standard___standard__FlatBuffer___Buffer__append(val* self, val* p0) {
 val* var_s /* var s: Text */;
 short int var /* : Bool */;
-short int var1 /* : Bool */;
-long var3 /* : Int */;
+long var2 /* : Int */;
 long var_sl /* var sl: Int */;
-long var4 /* : Int */;
+long var3 /* : Int */;
+long var5 /* : Int */;
 long var6 /* : Int */;
-long var7 /* : Int */;
+long var8 /* : Int */;
 long var9 /* : Int */;
-long var10 /* : Int */;
-short int var12 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var13 /* : Int */;
-short int var14 /* : Bool */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-const char* var_class_name19;
-short int var20 /* : Bool */;
-long var21 /* : Int */;
+long var12 /* : Int */;
+short int var13 /* : Bool */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+const char* var_class_name18;
+short int var19 /* : Bool */;
+long var20 /* : Int */;
+long var22 /* : Int */;
 long var23 /* : Int */;
-long var24 /* : Int */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-const char* var_class_name29;
-long var30 /* : Int */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
-char* var34 /* : NativeString */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+const char* var_class_name28;
+long var29 /* : Int */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+char* var33 /* : NativeString */;
+char* var35 /* : NativeString */;
 char* var36 /* : NativeString */;
-char* var37 /* : NativeString */;
-char* var39 /* : NativeString */;
-long var40 /* : Int */;
+char* var38 /* : NativeString */;
+long var39 /* : Int */;
+long var41 /* : Int */;
 long var42 /* : Int */;
-long var43 /* : Int */;
-long var45 /* : Int */;
-short int var47 /* : Bool */;
-int cltype48;
-int idtype49;
-char* var50 /* : NativeString */;
+long var44 /* : Int */;
+short int var46 /* : Bool */;
+int cltype47;
+int idtype48;
+char* var49 /* : NativeString */;
+char* var51 /* : NativeString */;
 char* var52 /* : NativeString */;
-char* var53 /* : NativeString */;
-char* var55 /* : NativeString */;
-long var56 /* : Int */;
+char* var54 /* : NativeString */;
+long var55 /* : Int */;
 long var57 /* : Int */;
 long var59 /* : Int */;
 long var61 /* : Int */;
-long var63 /* : Int */;
 long var_curr_pos /* var curr_pos: Int */;
-long var64 /* : Int */;
 long var_i /* var i: Int */;
-long var65 /* : Int */;
+long var62 /* : Int */;
 long var_ /* var : Int */;
-short int var66 /* : Bool */;
-short int var68 /* : Bool */;
-int cltype69;
-int idtype70;
-const char* var_class_name71;
-short int var72 /* : Bool */;
-val* var73 /* : SequenceRead[Char] */;
-val* var74 /* : nullable Object */;
-char var75 /* : Char */;
-char var_c /* var c: Char */;
-char* var76 /* : NativeString */;
-char* var78 /* : NativeString */;
-long var80 /* : Int */;
-long var81 /* : Int */;
-short int var83 /* : Bool */;
-int cltype84;
-int idtype85;
-const char* var_class_name86;
-long var87 /* : Int */;
+short int var63 /* : Bool */;
+short int var65 /* : Bool */;
+int cltype66;
+int idtype67;
+const char* var_class_name68;
+short int var69 /* : Bool */;
+val* var70 /* : SequenceRead[Char] */;
+val* var71 /* : nullable Object */;
+uint32_t var72 /* : Char */;
+uint32_t var_c /* var c: Char */;
+char* var73 /* : NativeString */;
+char* var75 /* : NativeString */;
+long var77 /* : Int */;
+short int var79 /* : Bool */;
+int cltype80;
+int idtype81;
+const char* var_class_name82;
+long var83 /* : Int */;
+long var84 /* : Int */;
+val* var_85 /* var : FlatBuffer */;
+long var86 /* : Int */;
 long var88 /* : Int */;
 long var89 /* : Int */;
-val* var_90 /* var : FlatBuffer */;
-long var91 /* : Int */;
-long var93 /* : Int */;
-long var94 /* : Int */;
-short int var96 /* : Bool */;
-int cltype97;
-int idtype98;
-const char* var_class_name99;
-long var100 /* : Int */;
+short int var91 /* : Bool */;
+int cltype92;
+int idtype93;
+const char* var_class_name94;
+long var95 /* : Int */;
 var_s = p0;
 {
 var = standard___standard__Text___is_empty(var_s);
@@ -8152,255 +8147,250 @@ if (var){
 goto RET_LABEL;
 } else {
 }
-var1 = 1;
 {
-{ /* Inline string#Buffer#is_dirty= (self,var1) on <self:FlatBuffer> */
-self->attrs[COLOR_standard__string__Buffer___is_dirty].s = var1; /* _is_dirty on <self:FlatBuffer> */
-RET_LABEL2:(void)0;
+{ /* Inline string#Buffer#is_dirty= (self,1) on <self:FlatBuffer> */
+self->attrs[COLOR_standard__string__Buffer___is_dirty].s = 1; /* _is_dirty on <self:FlatBuffer> */
+RET_LABEL1:(void)0;
 }
 }
 {
-var3 = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s) /* length on <var_s:Text>*/;
+var2 = ((long(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s); /* length on <var_s:Text>*/
 }
-var_sl = var3;
+var_sl = var2;
 {
 { /* Inline string#FlatBuffer#capacity (self) on <self:FlatBuffer> */
-var6 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
-var4 = var6;
-RET_LABEL5:(void)0;
+var5 = self->attrs[COLOR_standard__string__FlatBuffer___capacity].l; /* _capacity on <self:FlatBuffer> */
+var3 = var5;
+RET_LABEL4:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var9 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var7 = var9;
-RET_LABEL8:(void)0;
+var8 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var6 = var8;
+RET_LABEL7:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var7,var_sl) on <var7:Int> */
+{ /* Inline kernel#Int#+ (var6,var_sl) on <var6:Int> */
 /* Covariant cast for argument 0 (i) <var_sl:Int> isa OTHER */
 /* <var_sl:Int> isa OTHER */
-var12 = 1; /* easy <var_sl:Int> isa OTHER*/
-if (unlikely(!var12)) {
+var11 = 1; /* easy <var_sl:Int> isa OTHER*/
+if (unlikely(!var11)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var13 = var7 + var_sl;
-var10 = var13;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+var12 = var6 + var_sl;
+var9 = var12;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var4,var10) on <var4:Int> */
-/* Covariant cast for argument 0 (i) <var10:Int> isa OTHER */
-/* <var10:Int> isa OTHER */
-var16 = 1; /* easy <var10:Int> isa OTHER*/
-if (unlikely(!var16)) {
-var_class_name19 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name19);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var3,var9) on <var3:Int> */
+/* Covariant cast for argument 0 (i) <var9:Int> isa OTHER */
+/* <var9:Int> isa OTHER */
+var15 = 1; /* easy <var9:Int> isa OTHER*/
+if (unlikely(!var15)) {
+var_class_name18 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var20 = var4 < var10;
-var14 = var20;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+var19 = var3 < var9;
+var13 = var19;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
 }
-if (var14){
+if (var13){
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var23 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var21 = var23;
-RET_LABEL22:(void)0;
+var22 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var20 = var22;
+RET_LABEL21:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var21,var_sl) on <var21:Int> */
+{ /* Inline kernel#Int#+ (var20,var_sl) on <var20:Int> */
 /* Covariant cast for argument 0 (i) <var_sl:Int> isa OTHER */
 /* <var_sl:Int> isa OTHER */
-var26 = 1; /* easy <var_sl:Int> isa OTHER*/
-if (unlikely(!var26)) {
-var_class_name29 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var25 = 1; /* easy <var_sl:Int> isa OTHER*/
+if (unlikely(!var25)) {
+var_class_name28 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var30 = var21 + var_sl;
-var24 = var30;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
+var29 = var20 + var_sl;
+var23 = var29;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
 }
 {
-standard___standard__FlatBuffer___Buffer__enlarge(self, var24); /* Direct call string#FlatBuffer#enlarge on <self:FlatBuffer>*/
+standard___standard__FlatBuffer___Buffer__enlarge(self, var23); /* Direct call string#FlatBuffer#enlarge on <self:FlatBuffer>*/
 }
 } else {
 }
 /* <var_s:Text> isa FlatString */
-cltype32 = type_standard__FlatString.color;
-idtype33 = type_standard__FlatString.id;
-if(cltype32 >= var_s->type->table_size) {
-var31 = 0;
+cltype31 = type_standard__FlatString.color;
+idtype32 = type_standard__FlatString.id;
+if(cltype31 >= var_s->type->table_size) {
+var30 = 0;
 } else {
-var31 = var_s->type->type_table[cltype32] == idtype33;
+var30 = var_s->type->type_table[cltype31] == idtype32;
 }
-if (var31){
+if (var30){
 {
 { /* Inline string#FlatText#items (var_s) on <var_s:Text(FlatString)> */
-var36 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatString)> */
-var34 = var36;
-RET_LABEL35:(void)0;
+var35 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatString)> */
+var33 = var35;
+RET_LABEL34:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var39 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var37 = var39;
-RET_LABEL38:(void)0;
+var38 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var36 = var38;
+RET_LABEL37:(void)0;
 }
 }
 {
 { /* Inline string#FlatString#index_from (var_s) on <var_s:Text(FlatString)> */
-var42 = var_s->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_s:Text(FlatString)> */
-var40 = var42;
-RET_LABEL41:(void)0;
+var41 = var_s->attrs[COLOR_standard__string__FlatString___index_from].l; /* _index_from on <var_s:Text(FlatString)> */
+var39 = var41;
+RET_LABEL40:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var45 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var43 = var45;
-RET_LABEL44:(void)0;
+var44 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var42 = var44;
+RET_LABEL43:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#copy_to (var34,var37,var_sl,var40,var43) on <var34:NativeString> */
-memmove(var37+var43,var34+var40,var_sl);
-RET_LABEL46:(void)0;
+{ /* Inline string#NativeString#copy_to (var33,var36,var_sl,var39,var42) on <var33:NativeString> */
+memmove(var36+var42,var33+var39,var_sl);
+RET_LABEL45:(void)0;
 }
 }
 } else {
 /* <var_s:Text> isa FlatBuffer */
-cltype48 = type_standard__FlatBuffer.color;
-idtype49 = type_standard__FlatBuffer.id;
-if(cltype48 >= var_s->type->table_size) {
-var47 = 0;
+cltype47 = type_standard__FlatBuffer.color;
+idtype48 = type_standard__FlatBuffer.id;
+if(cltype47 >= var_s->type->table_size) {
+var46 = 0;
 } else {
-var47 = var_s->type->type_table[cltype48] == idtype49;
+var46 = var_s->type->type_table[cltype47] == idtype48;
 }
-if (var47){
+if (var46){
 {
 { /* Inline string#FlatText#items (var_s) on <var_s:Text(FlatBuffer)> */
-var52 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatBuffer)> */
-var50 = var52;
-RET_LABEL51:(void)0;
+var51 = var_s->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_s:Text(FlatBuffer)> */
+var49 = var51;
+RET_LABEL50:(void)0;
 }
 }
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var55 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var53 = var55;
-RET_LABEL54:(void)0;
+var54 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var52 = var54;
+RET_LABEL53:(void)0;
 }
 }
-var56 = 0;
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var59 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var57 = var59;
-RET_LABEL58:(void)0;
+var57 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var55 = var57;
+RET_LABEL56:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#copy_to (var50,var53,var_sl,var56,var57) on <var50:NativeString> */
-memmove(var53+var57,var50+var56,var_sl);
-RET_LABEL60:(void)0;
+{ /* Inline string#NativeString#copy_to (var49,var52,var_sl,0l,var55) on <var49:NativeString> */
+memmove(var52+var55,var49+0l,var_sl);
+RET_LABEL58:(void)0;
 }
 }
 } else {
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var63 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var61 = var63;
-RET_LABEL62:(void)0;
+var61 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var59 = var61;
+RET_LABEL60:(void)0;
 }
 }
-var_curr_pos = var61;
-var64 = 0;
-var_i = var64;
+var_curr_pos = var59;
+var_i = 0l;
 {
-var65 = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s) /* length on <var_s:Text>*/;
+var62 = ((long(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__length]))(var_s); /* length on <var_s:Text>*/
 }
-var_ = var65;
+var_ = var62;
 for(;;) {
 {
 { /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var68 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var68)) {
-var_class_name71 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name71);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
-}
-var72 = var_i < var_;
-var66 = var72;
-goto RET_LABEL67;
-RET_LABEL67:(void)0;
+var65 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var65)) {
+var_class_name68 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name68);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
+}
+var69 = var_i < var_;
+var63 = var69;
+goto RET_LABEL64;
+RET_LABEL64:(void)0;
 }
 }
-if (var66){
+if (var63){
 {
-var73 = ((val* (*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__chars]))(var_s) /* chars on <var_s:Text>*/;
+var70 = ((val*(*)(val* self))(var_s->class->vft[COLOR_standard__string__Text__chars]))(var_s); /* chars on <var_s:Text>*/
 }
 {
-var74 = ((val* (*)(val* self, long p0))(var73->class->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var73, var_i) /* [] on <var73:SequenceRead[Char]>*/;
+var71 = ((val*(*)(val* self, long p0))((((long)var70&3)?class_info[((long)var70&3)]:var70->class)->vft[COLOR_standard__abstract_collection__SequenceRead___91d_93d]))(var70, var_i); /* [] on <var70:SequenceRead[Char]>*/
 }
-var75 = ((struct instance_standard__Char*)var74)->value; /* autounbox from nullable Object to Char */;
-var_c = var75;
+var72 = (uint32_t)((long)(var71)>>2);
+var_c = var72;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var78 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var76 = var78;
-RET_LABEL77:(void)0;
+var75 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var73 = var75;
+RET_LABEL74:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[]= (var76,var_curr_pos,var_c) on <var76:NativeString> */
-var76[var_curr_pos]=var_c;
-RET_LABEL79:(void)0;
+{ /* Inline string#NativeString#[]= (var73,var_curr_pos,var_c) on <var73:NativeString> */
+var73[var_curr_pos]=(unsigned char)var_c;
+RET_LABEL76:(void)0;
 }
 }
-var80 = 1;
 {
-{ /* Inline kernel#Int#+ (var_curr_pos,var80) on <var_curr_pos:Int> */
-/* Covariant cast for argument 0 (i) <var80:Int> isa OTHER */
-/* <var80:Int> isa OTHER */
-var83 = 1; /* easy <var80:Int> isa OTHER*/
-if (unlikely(!var83)) {
-var_class_name86 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name86);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+{ /* Inline kernel#Int#+ (var_curr_pos,1l) on <var_curr_pos:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var79 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var79)) {
+var_class_name82 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name82);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var87 = var_curr_pos + var80;
-var81 = var87;
-goto RET_LABEL82;
-RET_LABEL82:(void)0;
+var83 = var_curr_pos + 1l;
+var77 = var83;
+goto RET_LABEL78;
+RET_LABEL78:(void)0;
 }
 }
-var_curr_pos = var81;
-var88 = 1;
+var_curr_pos = var77;
 {
-var89 = standard___standard__Int___Discrete__successor(var_i, var88);
+var84 = standard___standard__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var89;
+var_i = var84;
 } else {
 goto BREAK_label;
 }
@@ -8408,35 +8398,35 @@ goto BREAK_label;
 BREAK_label: (void)0;
 }
 }
-var_90 = self;
+var_85 = self;
 {
-{ /* Inline string#FlatText#length (var_90) on <var_90:FlatBuffer> */
-var93 = var_90->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_90:FlatBuffer> */
-var91 = var93;
-RET_LABEL92:(void)0;
+{ /* Inline string#FlatText#length (var_85) on <var_85:FlatBuffer> */
+var88 = var_85->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <var_85:FlatBuffer> */
+var86 = var88;
+RET_LABEL87:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var91,var_sl) on <var91:Int> */
+{ /* Inline kernel#Int#+ (var86,var_sl) on <var86:Int> */
 /* Covariant cast for argument 0 (i) <var_sl:Int> isa OTHER */
 /* <var_sl:Int> isa OTHER */
-var96 = 1; /* easy <var_sl:Int> isa OTHER*/
-if (unlikely(!var96)) {
-var_class_name99 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name99);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var100 = var91 + var_sl;
-var94 = var100;
-goto RET_LABEL95;
-RET_LABEL95:(void)0;
+var91 = 1; /* easy <var_sl:Int> isa OTHER*/
+if (unlikely(!var91)) {
+var_class_name94 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name94);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var95 = var86 + var_sl;
+var89 = var95;
+goto RET_LABEL90;
+RET_LABEL90:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#length= (var_90,var94) on <var_90:FlatBuffer> */
-var_90->attrs[COLOR_standard__string__FlatText___length].l = var94; /* _length on <var_90:FlatBuffer> */
-RET_LABEL101:(void)0;
+{ /* Inline string#FlatText#length= (var_85,var89) on <var_85:FlatBuffer> */
+var_85->attrs[COLOR_standard__string__FlatText___length].l = var89; /* _length on <var_85:FlatBuffer> */
+RET_LABEL96:(void)0;
 }
 }
 RET_LABEL:;
@@ -8446,323 +8436,250 @@ val* standard___standard__FlatBuffer___Text__substring(val* self, long p0, long
 val* var /* : Buffer */;
 long var_from /* var from: Int */;
 long var_count /* var count: Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var5 /* : Bool */;
-long var6 /* : Int */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
-const char* var_class_name11;
-long var12 /* : Int */;
-long var13 /* : Int */;
+short int var4 /* : Bool */;
+long var5 /* : Int */;
+short int var7 /* : Bool */;
+int cltype8;
+int idtype9;
+const char* var_class_name10;
+long var11 /* : Int */;
+short int var12 /* : Bool */;
 short int var14 /* : Bool */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-const char* var_class_name19;
-short int var20 /* : Bool */;
+int cltype15;
+int idtype16;
+const char* var_class_name17;
+short int var18 /* : Bool */;
+long var19 /* : Int */;
 long var21 /* : Int */;
-long var22 /* : Int */;
-long var24 /* : Int */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-const char* var_class_name30;
-short int var31 /* : Bool */;
-long var32 /* : Int */;
-long var34 /* : Int */;
-short int var35 /* : Bool */;
-short int var37 /* : Bool */;
-int cltype38;
-int idtype39;
-const char* var_class_name40;
+short int var22 /* : Bool */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+const char* var_class_name27;
+short int var28 /* : Bool */;
+long var29 /* : Int */;
+long var31 /* : Int */;
+short int var32 /* : Bool */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+const char* var_class_name37;
+short int var38 /* : Bool */;
+long var39 /* : Int */;
 short int var41 /* : Bool */;
-val* var42 /* : FlatBuffer */;
-long var43 /* : Int */;
-short int var45 /* : Bool */;
-int cltype46;
-int idtype47;
-const char* var_class_name48;
-long var49 /* : Int */;
+int cltype42;
+int idtype43;
+const char* var_class_name44;
+long var45 /* : Int */;
+long var_len /* var len: Int */;
+char* var46 /* : NativeString */;
+char* var47 /* : NativeString */;
+char* var49 /* : NativeString */;
+char* var_r_items /* var r_items: NativeString */;
+char* var50 /* : NativeString */;
+char* var52 /* : NativeString */;
+val* var54 /* : FlatBuffer */;
 val* var_r /* var r: FlatBuffer */;
-short int var50 /* : Bool */;
-short int var52 /* : Bool */;
-int cltype53;
-int idtype54;
-const char* var_class_name55;
-short int var56 /* : Bool */;
-val* var57 /* : Sequence[Char] */;
-val* var59 /* : Sequence[Char] */;
-char* var60 /* : NativeString */;
-char* var62 /* : NativeString */;
-char var63 /* : Char */;
-char var65 /* : Char */;
-val* var66 /* : nullable Object */;
-long var67 /* : Int */;
-long var68 /* : Int */;
-short int var70 /* : Bool */;
-int cltype71;
-int idtype72;
-const char* var_class_name73;
-long var74 /* : Int */;
-val* var75 /* : FlatBuffer */;
+val* var55 /* : Buffer */;
+val* var56 /* : Buffer */;
 var_from = p0;
 var_count = p1;
-var1 = 0;
 {
-{ /* Inline kernel#Int#>= (var_count,var1) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (unlikely(!var4)) {
+{ /* Inline kernel#Int#>= (var_count,0l) on <var_count:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var3 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var3)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var5 = var_count >= var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+var4 = var_count >= 0l;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(!var2)) {
+if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1676);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1838);
+fatal_exit(1);
 }
 {
 { /* Inline kernel#Int#+ (var_count,var_from) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var8 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var8)) {
-var_class_name11 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name11);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+var7 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var7)) {
+var_class_name10 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name10);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var12 = var_count + var_from;
-var6 = var12;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var11 = var_count + var_from;
+var5 = var11;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-var_count = var6;
-var13 = 0;
+var_count = var5;
 {
-{ /* Inline kernel#Int#< (var_from,var13) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var13:Int> isa OTHER */
-/* <var13:Int> isa OTHER */
-var16 = 1; /* easy <var13:Int> isa OTHER*/
-if (unlikely(!var16)) {
-var_class_name19 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name19);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+{ /* Inline kernel#Int#< (var_from,0l) on <var_from:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var14 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var14)) {
+var_class_name17 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var20 = var_from < var13;
-var14 = var20;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+var18 = var_from < 0l;
+var12 = var18;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-if (var14){
-var21 = 0;
-var_from = var21;
+if (var12){
+var_from = 0l;
 } else {
 }
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var24 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var22 = var24;
-RET_LABEL23:(void)0;
+var21 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var19 = var21;
+RET_LABEL20:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#> (var_count,var22) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var22:Int> isa OTHER */
-/* <var22:Int> isa OTHER */
-var27 = 1; /* easy <var22:Int> isa OTHER*/
-if (unlikely(!var27)) {
-var_class_name30 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name30);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
+{ /* Inline kernel#Int#> (var_count,var19) on <var_count:Int> */
+/* Covariant cast for argument 0 (i) <var19:Int> isa OTHER */
+/* <var19:Int> isa OTHER */
+var24 = 1; /* easy <var19:Int> isa OTHER*/
+if (unlikely(!var24)) {
+var_class_name27 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
 }
-var31 = var_count > var22;
-var25 = var31;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+var28 = var_count > var19;
+var22 = var28;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
-if (var25){
+if (var22){
 {
 { /* Inline string#FlatText#length (self) on <self:FlatBuffer> */
-var34 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
-var32 = var34;
-RET_LABEL33:(void)0;
+var31 = self->attrs[COLOR_standard__string__FlatText___length].l; /* _length on <self:FlatBuffer> */
+var29 = var31;
+RET_LABEL30:(void)0;
 }
 }
-var_count = var32;
+var_count = var29;
 } else {
 }
 {
 { /* Inline kernel#Int#< (var_from,var_count) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_count:Int> isa OTHER */
 /* <var_count:Int> isa OTHER */
-var37 = 1; /* easy <var_count:Int> isa OTHER*/
-if (unlikely(!var37)) {
-var_class_name40 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+var34 = 1; /* easy <var_count:Int> isa OTHER*/
+if (unlikely(!var34)) {
+var_class_name37 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
-var41 = var_from < var_count;
-var35 = var41;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+var38 = var_from < var_count;
+var32 = var38;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
 }
 }
-if (var35){
-var42 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
+if (var32){
 {
 { /* Inline kernel#Int#- (var_count,var_from) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var45 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var45)) {
-var_class_name48 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 416);
-show_backtrace(1);
-}
-var49 = var_count - var_from;
-var43 = var49;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
-}
-}
-{
-standard___standard__FlatBuffer___with_capacity(var42, var43); /* Direct call string#FlatBuffer#with_capacity on <var42:FlatBuffer>*/
-}
-var_r = var42;
-for(;;) {
-{
-{ /* Inline kernel#Int#< (var_from,var_count) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var_count:Int> isa OTHER */
-/* <var_count:Int> isa OTHER */
-var52 = 1; /* easy <var_count:Int> isa OTHER*/
-if (unlikely(!var52)) {
-var_class_name55 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+var41 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var41)) {
+var_class_name44 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name44);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 540);
+fatal_exit(1);
 }
-var56 = var_from < var_count;
-var50 = var56;
-goto RET_LABEL51;
-RET_LABEL51:(void)0;
+var45 = var_count - var_from;
+var39 = var45;
+goto RET_LABEL40;
+RET_LABEL40:(void)0;
 }
 }
-if (var50){
+var_len = var39;
+var46 = NULL/*special!*/;
 {
-{ /* Inline string#FlatBuffer#chars (var_r) on <var_r:FlatBuffer> */
-var59 = var_r->attrs[COLOR_standard__string__FlatBuffer___chars].val; /* _chars on <var_r:FlatBuffer> */
-if (unlikely(var59 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1525);
-show_backtrace(1);
-}
-var57 = var59;
-RET_LABEL58:(void)0;
+{ /* Inline string#NativeString#new (var46,var_len) on <var46:NativeString> */
+var49 = (char*)nit_alloc(var_len);
+var47 = var49;
+goto RET_LABEL48;
+RET_LABEL48:(void)0;
 }
 }
+var_r_items = var47;
 {
 { /* Inline string#FlatText#items (self) on <self:FlatBuffer> */
-var62 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
-var60 = var62;
-RET_LABEL61:(void)0;
+var52 = self->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <self:FlatBuffer> */
+var50 = var52;
+RET_LABEL51:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[] (var60,var_from) on <var60:NativeString> */
-var65 = var60[var_from];
-var63 = var65;
-goto RET_LABEL64;
-RET_LABEL64:(void)0;
-}
+{ /* Inline string#NativeString#copy_to (var50,var_r_items,var_len,var_from,0l) on <var50:NativeString> */
+memmove(var_r_items+0l,var50+var_from,var_len);
+RET_LABEL53:(void)0;
 }
-{
-var66 = BOX_standard__Char(var63); /* autobox from Char to nullable Object */
-((void (*)(val* self, val* p0))(var57->class->vft[COLOR_standard__abstract_collection__Sequence__push]))(var57, var66) /* push on <var57:Sequence[Char]>*/;
 }
-var67 = 1;
+var54 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
 {
-{ /* Inline kernel#Int#+ (var_from,var67) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var67:Int> isa OTHER */
-/* <var67:Int> isa OTHER */
-var70 = 1; /* easy <var67:Int> isa OTHER*/
-if (unlikely(!var70)) {
-var_class_name73 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name73);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
-}
-var74 = var_from + var67;
-var68 = var74;
-goto RET_LABEL69;
-RET_LABEL69:(void)0;
-}
-}
-var_from = var68;
-} else {
-goto BREAK_label;
+standard___standard__FlatBuffer___with_infos(var54, var_r_items, var_len, var_len); /* Direct call string#FlatBuffer#with_infos on <var54:FlatBuffer>*/
 }
-}
-BREAK_label: (void)0;
+var_r = var54;
 var = var_r;
 goto RET_LABEL;
 } else {
-var75 = NEW_standard__FlatBuffer(&type_standard__FlatBuffer);
+var55 = NEW_standard__Buffer(&type_standard__Buffer);
 {
-{ /* Inline string#FlatBuffer#init (var75) on <var75:FlatBuffer> */
-{
-((void (*)(val* self))(var75->class->vft[COLOR_standard___standard__FlatBuffer___standard__kernel__Object__init]))(var75) /* init on <var75:FlatBuffer>*/;
-}
-RET_LABEL76:(void)0;
-}
+var56 = standard___standard__Buffer___new(var55);
 }
-var = var75;
+var = var56;
 goto RET_LABEL;
 }
 RET_LABEL:;
 return var;
 }
 /* method string#FlatBufferCharView#[] for (self: FlatBufferCharView, Int): Char */
-char standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
-char var /* : Char */;
+uint32_t standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
+uint32_t var /* : Char */;
 long var_index /* var index: Int */;
 val* var1 /* : Text */;
 val* var3 /* : Text */;
 char* var4 /* : NativeString */;
 char* var6 /* : NativeString */;
-char var7 /* : Char */;
-char var9 /* : Char */;
+uint32_t var7 /* : Char */;
+uint32_t var9 /* : Char */;
 var_index = p0;
 {
 { /* Inline string#StringCharView#target (self) on <self:FlatBufferCharView> */
 var3 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var3 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -8777,7 +8694,7 @@ RET_LABEL5:(void)0;
 }
 {
 { /* Inline string#NativeString#[] (var4,var_index) on <var4:NativeString> */
-var9 = var4[var_index];
+var9 = (uint32_t)(unsigned char)var4[var_index];
 var7 = var9;
 goto RET_LABEL8;
 RET_LABEL8:(void)0;
@@ -8791,117 +8708,115 @@ return var;
 /* method string#FlatBufferCharView#[] for (self: SequenceRead[nullable Object], Int): nullable Object */
 val* VIRTUAL_standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
 val* var /* : nullable Object */;
-char var1 /* : Char */;
+uint32_t var1 /* : Char */;
 val* var2 /* : nullable Object */;
 var1 = standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SequenceRead___91d_93d(self, p0);
-var2 = BOX_standard__Char(var1); /* autobox from Char to nullable Object */
+var2 = (val*)((long)(var1)<<2|2);
 var = var2;
 RET_LABEL:;
 return var;
 }
 /* method string#FlatBufferCharView#[]= for (self: FlatBufferCharView, Int, Char) */
-void standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence___91d_93d_61d(val* self, long p0, char p1) {
+void standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence___91d_93d_61d(val* self, long p0, uint32_t p1) {
 short int var /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
 long var_index /* var index: Int */;
-char var_item /* var item: Char */;
+uint32_t var_item /* var item: Char */;
 short int var1 /* : Bool */;
-long var2 /* : Int */;
-short int var3 /* : Bool */;
-short int var5 /* : Bool */;
-int cltype6;
-int idtype7;
-const char* var_class_name8;
-short int var9 /* : Bool */;
+short int var2 /* : Bool */;
+short int var4 /* : Bool */;
+int cltype5;
+int idtype6;
+const char* var_class_name7;
+short int var8 /* : Bool */;
 short int var_ /* var : Bool */;
-long var10 /* : Int */;
-short int var11 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-short int var17 /* : Bool */;
-long var18 /* : Int */;
-short int var19 /* : Bool */;
-short int var21 /* : Bool */;
-val* var22 /* : Text */;
-val* var24 /* : Text */;
-char* var25 /* : NativeString */;
-char* var27 /* : NativeString */;
+long var9 /* : Int */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+const char* var_class_name15;
+short int var16 /* : Bool */;
+long var17 /* : Int */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+val* var21 /* : Text */;
+val* var23 /* : Text */;
+char* var24 /* : NativeString */;
+char* var26 /* : NativeString */;
 /* Covariant cast for argument 1 (item) <p1:Char> isa Char */
 /* <p1:Char> isa Char */
 var = 1; /* easy <p1:Char> isa Char*/
 if (unlikely(!var)) {
 var_class_name = type_standard__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "Char", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1771);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1932);
+fatal_exit(1);
 }
 var_index = p0;
 var_item = p1;
-var2 = 0;
 {
-{ /* Inline kernel#Int#>= (var_index,var2) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var2:Int> isa OTHER */
-/* <var2:Int> isa OTHER */
-var5 = 1; /* easy <var2:Int> isa OTHER*/
-if (unlikely(!var5)) {
-var_class_name8 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name8);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 411);
-show_backtrace(1);
+{ /* Inline kernel#Int#>= (var_index,0l) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var4 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var4)) {
+var_class_name7 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name7);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 535);
+fatal_exit(1);
 }
-var9 = var_index >= var2;
-var3 = var9;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+var8 = var_index >= 0l;
+var2 = var8;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
 }
-var_ = var3;
-if (var3){
+var_ = var2;
+if (var2){
 {
-var10 = standard__string___standard__string__StringCharView___standard__abstract_collection__Collection__length(self);
+var9 = standard__string___standard__string__StringCharView___standard__abstract_collection__Collection__length(self);
 }
 {
-{ /* Inline kernel#Int#<= (var_index,var10) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var10:Int> isa OTHER */
-/* <var10:Int> isa OTHER */
-var13 = 1; /* easy <var10:Int> isa OTHER*/
-if (unlikely(!var13)) {
-var_class_name16 = type_standard__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 409);
-show_backtrace(1);
+{ /* Inline kernel#Int#<= (var_index,var9) on <var_index:Int> */
+/* Covariant cast for argument 0 (i) <var9:Int> isa OTHER */
+/* <var9:Int> isa OTHER */
+var12 = 1; /* easy <var9:Int> isa OTHER*/
+if (unlikely(!var12)) {
+var_class_name15 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name15);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 533);
+fatal_exit(1);
 }
-var17 = var_index <= var10;
-var11 = var17;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var16 = var_index <= var9;
+var10 = var16;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-var1 = var11;
+var1 = var10;
 } else {
 var1 = var_;
 }
 if (unlikely(!var1)) {
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1773);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1934);
+fatal_exit(1);
 }
 {
-var18 = standard__string___standard__string__StringCharView___standard__abstract_collection__Collection__length(self);
+var17 = standard__string___standard__string__StringCharView___standard__abstract_collection__Collection__length(self);
 }
 {
-{ /* Inline kernel#Int#== (var_index,var18) on <var_index:Int> */
-var21 = var_index == var18;
-var19 = var21;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
+{ /* Inline kernel#Int#== (var_index,var17) on <var_index:Int> */
+var20 = var_index == var17;
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
 }
-if (var19){
+if (var18){
 {
 standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SimpleCollection__add(self, var_item); /* Direct call string#FlatBufferCharView#add on <self:FlatBufferCharView>*/
 }
@@ -8910,45 +8825,45 @@ goto RET_LABEL;
 }
 {
 { /* Inline string#StringCharView#target (self) on <self:FlatBufferCharView> */
-var24 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
-if (unlikely(var24 == NULL)) {
+var23 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
+if (unlikely(var23 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
-var22 = var24;
-RET_LABEL23:(void)0;
+var21 = var23;
+RET_LABEL22:(void)0;
 }
 }
 {
-{ /* Inline string#FlatText#items (var22) on <var22:Text(FlatBuffer)> */
-var27 = var22->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var22:Text(FlatBuffer)> */
-var25 = var27;
-RET_LABEL26:(void)0;
+{ /* Inline string#FlatText#items (var21) on <var21:Text(FlatBuffer)> */
+var26 = var21->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var21:Text(FlatBuffer)> */
+var24 = var26;
+RET_LABEL25:(void)0;
 }
 }
 {
-{ /* Inline string#NativeString#[]= (var25,var_index,var_item) on <var25:NativeString> */
-var25[var_index]=var_item;
-RET_LABEL28:(void)0;
+{ /* Inline string#NativeString#[]= (var24,var_index,var_item) on <var24:NativeString> */
+var24[var_index]=(unsigned char)var_item;
+RET_LABEL27:(void)0;
 }
 }
 RET_LABEL:;
 }
 /* method string#FlatBufferCharView#[]= for (self: Sequence[nullable Object], Int, nullable Object) */
 void VIRTUAL_standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence___91d_93d_61d(val* self, long p0, val* p1) {
-char var /* : Char */;
-var = ((struct instance_standard__Char*)p1)->value; /* autounbox from nullable Object to Char */;
+uint32_t var /* : Char */;
+var = (uint32_t)((long)(p1)>>2);
 standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence___91d_93d_61d(self, p0, var); /* Direct call string#FlatBufferCharView#[]= on <self:Sequence[nullable Object](FlatBufferCharView)>*/
 RET_LABEL:;
 }
 /* method string#FlatBufferCharView#push for (self: FlatBufferCharView, Char) */
-void standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence__push(val* self, char p0) {
+void standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence__push(val* self, uint32_t p0) {
 short int var /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-char var_c /* var c: Char */;
+uint32_t var_c /* var c: Char */;
 val* var1 /* : Text */;
 val* var3 /* : Text */;
 /* Covariant cast for argument 0 (c) <p0:Char> isa Char */
@@ -8957,8 +8872,8 @@ var = 1; /* easy <p0:Char> isa Char*/
 if (unlikely(!var)) {
 var_class_name = type_standard__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "Char", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1781);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1942);
+fatal_exit(1);
 }
 var_c = p0;
 {
@@ -8966,8 +8881,8 @@ var_c = p0;
 var3 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var3 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -8980,18 +8895,18 @@ RET_LABEL:;
 }
 /* method string#FlatBufferCharView#push for (self: Sequence[nullable Object], nullable Object) */
 void VIRTUAL_standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence__push(val* self, val* p0) {
-char var /* : Char */;
-var = ((struct instance_standard__Char*)p0)->value; /* autounbox from nullable Object to Char */;
+uint32_t var /* : Char */;
+var = (uint32_t)((long)(p0)>>2);
 standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__Sequence__push(self, var); /* Direct call string#FlatBufferCharView#push on <self:Sequence[nullable Object](FlatBufferCharView)>*/
 RET_LABEL:;
 }
 /* method string#FlatBufferCharView#add for (self: FlatBufferCharView, Char) */
-void standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SimpleCollection__add(val* self, char p0) {
+void standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SimpleCollection__add(val* self, uint32_t p0) {
 short int var /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-char var_c /* var c: Char */;
+uint32_t var_c /* var c: Char */;
 val* var1 /* : Text */;
 val* var3 /* : Text */;
 /* Covariant cast for argument 0 (c) <p0:Char> isa Char */
@@ -9000,8 +8915,8 @@ var = 1; /* easy <p0:Char> isa Char*/
 if (unlikely(!var)) {
 var_class_name = type_standard__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "Char", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1786);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1947);
+fatal_exit(1);
 }
 var_c = p0;
 {
@@ -9009,8 +8924,8 @@ var_c = p0;
 var3 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var3 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -9023,8 +8938,8 @@ RET_LABEL:;
 }
 /* method string#FlatBufferCharView#add for (self: SimpleCollection[nullable Object], nullable Object) */
 void VIRTUAL_standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SimpleCollection__add(val* self, val* p0) {
-char var /* : Char */;
-var = ((struct instance_standard__Char*)p0)->value; /* autounbox from nullable Object to Char */;
+uint32_t var /* : Char */;
+var = (uint32_t)((long)(p0)>>2);
 standard__string___standard__string__FlatBufferCharView___standard__abstract_collection__SimpleCollection__add(self, var); /* Direct call string#FlatBufferCharView#add on <self:SimpleCollection[nullable Object](FlatBufferCharView)>*/
 RET_LABEL:;
 }
@@ -9039,8 +8954,8 @@ var_cap = p0;
 var2 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var2 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var = var2;
 RET_LABEL1:(void)0;
@@ -9085,14 +9000,14 @@ long var28 /* : Int */;
 /* <p0:Collection[Char]> isa Collection[Char] */
 var = 1; /* easy <p0:Collection[Char]> isa Collection[Char]*/
 if (unlikely(!var)) {
-var_class_name = p0 == NULL ? "null" : p0->type->name;
+var_class_name = p0 == NULL ? "null" : (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "Collection[Char]", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1796);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1957);
+fatal_exit(1);
 }
 var_s = p0;
 {
-var1 = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__abstract_collection__Collection__length]))(var_s) /* length on <var_s:Collection[Char]>*/;
+var1 = ((long(*)(val* self))((((long)var_s&3)?class_info[((long)var_s&3)]:var_s->class)->vft[COLOR_standard__abstract_collection__Collection__length]))(var_s); /* length on <var_s:Collection[Char]>*/
 }
 var_s_length = var1;
 {
@@ -9100,8 +9015,8 @@ var_s_length = var1;
 var4 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var4 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var2 = var4;
 RET_LABEL3:(void)0;
@@ -9115,7 +9030,7 @@ RET_LABEL6:(void)0;
 }
 }
 {
-var8 = ((long (*)(val* self))(var_s->class->vft[COLOR_standard__abstract_collection__Collection__length]))(var_s) /* length on <var_s:Collection[Char]>*/;
+var8 = ((long(*)(val* self))((((long)var_s&3)?class_info[((long)var_s&3)]:var_s->class)->vft[COLOR_standard__abstract_collection__Collection__length]))(var_s); /* length on <var_s:Collection[Char]>*/
 }
 {
 { /* Inline kernel#Int#< (var5,var8) on <var5:Int> */
@@ -9125,8 +9040,8 @@ var11 = 1; /* easy <var8:Int> isa OTHER*/
 if (unlikely(!var11)) {
 var_class_name14 = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name14);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
 var15 = var5 < var8;
 var9 = var15;
@@ -9140,8 +9055,8 @@ if (var9){
 var18 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var18 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var16 = var18;
 RET_LABEL17:(void)0;
@@ -9162,8 +9077,8 @@ var24 = 1; /* easy <var19:Int> isa OTHER*/
 if (unlikely(!var24)) {
 var_class_name27 = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
 var28 = var_s_length + var19;
 var22 = var28;
@@ -9192,8 +9107,8 @@ var1 = NEW_standard__string__FlatBufferIterator(&type_standard__string__FlatBuff
 var4 = self->attrs[COLOR_standard__string__StringCharView___target].val; /* _target on <self:FlatBufferCharView> */
 if (unlikely(var4 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 851);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 968);
+fatal_exit(1);
 }
 var2 = var4;
 RET_LABEL3:(void)0;
@@ -9214,8 +9129,8 @@ val* var1 /* : FlatBuffer */;
 var1 = self->attrs[COLOR_standard__string__FlatBufferIterator___target].val; /* _target on <self:FlatBufferIterator> */
 if (unlikely(var1 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1811);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1972);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
@@ -9260,15 +9175,14 @@ val* var_tgt /* var tgt: FlatBuffer */;
 long var_pos /* var pos: Int */;
 long var /* : Int */;
 long var3 /* : Int */;
-long var4 /* : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var8 /* : Bool */;
-char* var9 /* : NativeString */;
-char* var11 /* : NativeString */;
+short int var7 /* : Bool */;
+char* var8 /* : NativeString */;
+char* var10 /* : NativeString */;
 var_tgt = p0;
 var_pos = p1;
 {
@@ -9284,36 +9198,35 @@ var = var3;
 RET_LABEL2:(void)0;
 }
 }
-var4 = 0;
 {
-{ /* Inline kernel#Int#> (var,var4) on <var:Int> */
-/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
-/* <var4:Int> isa OTHER */
-var7 = 1; /* easy <var4:Int> isa OTHER*/
-if (unlikely(!var7)) {
+{ /* Inline kernel#Int#> (var,0l) on <var:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var6 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var6)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 412);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 536);
+fatal_exit(1);
 }
-var8 = var > var4;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var7 = var > 0l;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
-if (var5){
+if (var4){
 {
 { /* Inline string#FlatText#items (var_tgt) on <var_tgt:FlatBuffer> */
-var11 = var_tgt->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_tgt:FlatBuffer> */
-var9 = var11;
-RET_LABEL10:(void)0;
+var10 = var_tgt->attrs[COLOR_standard__string__FlatText___items].str; /* _items on <var_tgt:FlatBuffer> */
+var8 = var10;
+RET_LABEL9:(void)0;
 }
 }
 {
-{ /* Inline string#FlatBufferIterator#target_items= (self,var9) on <self:FlatBufferIterator> */
-self->attrs[COLOR_standard__string__FlatBufferIterator___target_items].str = var9; /* _target_items on <self:FlatBufferIterator> */
-RET_LABEL12:(void)0;
+{ /* Inline string#FlatBufferIterator#target_items= (self,var8) on <self:FlatBufferIterator> */
+self->attrs[COLOR_standard__string__FlatBufferIterator___target_items].str = var8; /* _target_items on <self:FlatBufferIterator> */
+RET_LABEL11:(void)0;
 }
 }
 } else {
@@ -9321,7 +9234,7 @@ RET_LABEL12:(void)0;
 {
 { /* Inline string#FlatBufferIterator#curr_pos= (self,var_pos) on <self:FlatBufferIterator> */
 self->attrs[COLOR_standard__string__FlatBufferIterator___curr_pos].l = var_pos; /* _curr_pos on <self:FlatBufferIterator> */
-RET_LABEL13:(void)0;
+RET_LABEL12:(void)0;
 }
 }
 RET_LABEL:;
@@ -9370,8 +9283,8 @@ RET_LABEL2:(void)0;
 var6 = self->attrs[COLOR_standard__string__FlatBufferIterator___target].val; /* _target on <self:FlatBufferIterator> */
 if (unlikely(var6 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1811);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__string, 1972);
+fatal_exit(1);
 }
 var4 = var6;
 RET_LABEL5:(void)0;
@@ -9392,8 +9305,8 @@ var12 = 1; /* easy <var7:Int> isa OTHER*/
 if (unlikely(!var12)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 410);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 534);
+fatal_exit(1);
 }
 var13 = var1 < var7;
 var10 = var13;
@@ -9407,14 +9320,14 @@ RET_LABEL:;
 return var;
 }
 /* method string#FlatBufferIterator#item for (self: FlatBufferIterator): Char */
-char standard__string___standard__string__FlatBufferIterator___standard__abstract_collection__Iterator__item(val* self) {
-char var /* : Char */;
+uint32_t standard__string___standard__string__FlatBufferIterator___standard__abstract_collection__Iterator__item(val* self) {
+uint32_t var /* : Char */;
 char* var1 /* : NativeString */;
 char* var3 /* : NativeString */;
 long var4 /* : Int */;
 long var6 /* : Int */;
-char var7 /* : Char */;
-char var9 /* : Char */;
+uint32_t var7 /* : Char */;
+uint32_t var9 /* : Char */;
 {
 { /* Inline string#FlatBufferIterator#target_items (self) on <self:FlatBufferIterator> */
 var3 = self->attrs[COLOR_standard__string__FlatBufferIterator___target_items].str; /* _target_items on <self:FlatBufferIterator> */
@@ -9431,7 +9344,7 @@ RET_LABEL5:(void)0;
 }
 {
 { /* Inline string#NativeString#[] (var1,var4) on <var1:NativeString> */
-var9 = var1[var4];
+var9 = (uint32_t)(unsigned char)var1[var4];
 var7 = var9;
 goto RET_LABEL8;
 RET_LABEL8:(void)0;
@@ -9445,10 +9358,10 @@ return var;
 /* method string#FlatBufferIterator#item for (self: Iterator[nullable Object]): nullable Object */
 val* VIRTUAL_standard__string___standard__string__FlatBufferIterator___standard__abstract_collection__Iterator__item(val* self) {
 val* var /* : nullable Object */;
-char var1 /* : Char */;
+uint32_t var1 /* : Char */;
 val* var2 /* : nullable Object */;
 var1 = standard__string___standard__string__FlatBufferIterator___standard__abstract_collection__Iterator__item(self);
-var2 = BOX_standard__Char(var1); /* autobox from Char to nullable Object */
+var2 = (val*)((long)(var1)<<2|2);
 var = var2;
 RET_LABEL:;
 return var;
@@ -9459,12 +9372,11 @@ val* var_ /* var : FlatBufferIterator */;
 long var /* : Int */;
 long var2 /* : Int */;
 long var3 /* : Int */;
-long var4 /* : Int */;
-short int var6 /* : Bool */;
+short int var5 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var7 /* : Int */;
+long var6 /* : Int */;
 var_ = self;
 {
 { /* Inline string#FlatBufferIterator#curr_pos (var_) on <var_:FlatBufferIterator> */
@@ -9473,28 +9385,27 @@ var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var3 = 1;
 {
-{ /* Inline kernel#Int#+ (var,var3) on <var:Int> */
-/* Covariant cast for argument 0 (i) <var3:Int> isa OTHER */
-/* <var3:Int> isa OTHER */
-var6 = 1; /* easy <var3:Int> isa OTHER*/
-if (unlikely(!var6)) {
+{ /* Inline kernel#Int#+ (var,1l) on <var:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var5 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var5)) {
 var_class_name = type_standard__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 413);
-show_backtrace(1);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
 }
-var7 = var + var3;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+var6 = var + 1l;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
 }
 {
-{ /* Inline string#FlatBufferIterator#curr_pos= (var_,var4) on <var_:FlatBufferIterator> */
-var_->attrs[COLOR_standard__string__FlatBufferIterator___curr_pos].l = var4; /* _curr_pos on <var_:FlatBufferIterator> */
-RET_LABEL8:(void)0;
+{ /* Inline string#FlatBufferIterator#curr_pos= (var_,var3) on <var_:FlatBufferIterator> */
+var_->attrs[COLOR_standard__string__FlatBufferIterator___curr_pos].l = var3; /* _curr_pos on <var_:FlatBufferIterator> */
+RET_LABEL7:(void)0;
 }
 }
 RET_LABEL:;
@@ -9502,7 +9413,7 @@ RET_LABEL:;
 /* method string#FlatBufferIterator#init for (self: FlatBufferIterator) */
 void standard__string___standard__string__FlatBufferIterator___standard__kernel__Object__init(val* self) {
 {
-((void (*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__FlatBufferIterator___standard__kernel__Object__init]))(self) /* init on <self:FlatBufferIterator>*/;
+((void(*)(val* self))(self->class->vft[COLOR_standard__string___standard__string__FlatBufferIterator___standard__kernel__Object__init]))(self); /* init on <self:FlatBufferIterator>*/
 }
 RET_LABEL:;
 }
@@ -9511,7 +9422,7 @@ val* standard__string___Object___to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
 {
-var1 = ((val* (*)(val* self))(self->class->vft[COLOR_standard__string__Object__inspect]))(self) /* inspect on <self:Object>*/;
+var1 = ((val*(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_standard__string__Object__inspect]))(self); /* inspect on <self:Object>*/
 }
 var = var1;
 goto RET_LABEL;
@@ -9523,7 +9434,7 @@ char* standard__string___Object___native_class_name(val* self) {
 char* var /* : NativeString */;
 const char* var_class_name;
 char* var1 /* : NativeString */;
-var_class_name = self == NULL ? "null" : self->type->name;
+var_class_name = self == NULL ? "null" : (((long)self&3)?type_info[((long)self&3)]:self->type)->name;
 var1 = (char*)var_class_name;
 var = var1;
 goto RET_LABEL;
@@ -9539,7 +9450,7 @@ char* var3 /* : NativeString */;
 val* var4 /* : String */;
 {
 { /* Inline string#Object#native_class_name (self) on <self:Object> */
-var_class_name = self == NULL ? "null" : self->type->name;
+var_class_name = self == NULL ? "null" : (((long)self&3)?type_info[((long)self&3)]:self->type)->name;
 var3 = (char*)var_class_name;
 var1 = var3;
 goto RET_LABEL2;
@@ -9557,57 +9468,51 @@ return var;
 /* method string#Object#inspect for (self: Object): String */
 val* standard__string___Object___inspect(val* self) {
 val* var /* : String */;
+val* var1 /* : NativeArray[String] */;
 static val* varonce;
-val* var1 /* : String */;
-char* var2 /* : NativeString */;
-long var3 /* : Int */;
-val* var4 /* : FlatString */;
-val* var5 /* : String */;
+static val* varonce2;
+val* var3 /* : String */;
+char* var4 /* : NativeString */;
+val* var5 /* : FlatString */;
 static val* varonce6;
 val* var7 /* : String */;
 char* var8 /* : NativeString */;
-long var9 /* : Int */;
-val* var10 /* : FlatString */;
-val* var11 /* : Array[Object] */;
-long var12 /* : Int */;
-val* var13 /* : NativeArray[Object] */;
-val* var14 /* : String */;
-if (varonce) {
-var1 = varonce;
+val* var9 /* : FlatString */;
+val* var10 /* : String */;
+val* var11 /* : String */;
+if (unlikely(varonce==NULL)) {
+var1 = NEW_standard__NativeArray(3l, &type_standard__NativeArray__standard__String);
+if (likely(varonce2!=NULL)) {
+var3 = varonce2;
 } else {
-var2 = "<";
-var3 = 1;
-var4 = standard___standard__NativeString___to_s_with_length(var2, var3);
-var1 = var4;
-varonce = var1;
-}
-{
-var5 = standard__string___Object___inspect_head(self);
+var4 = "<";
+var5 = standard___standard__NativeString___to_s_with_length(var4, 1l);
+var3 = var5;
+varonce2 = var3;
 }
-if (varonce6) {
+((struct instance_standard__NativeArray*)var1)->values[0]=var3;
+if (likely(varonce6!=NULL)) {
 var7 = varonce6;
 } else {
 var8 = ">";
-var9 = 1;
-var10 = standard___standard__NativeString___to_s_with_length(var8, var9);
-var7 = var10;
+var9 = standard___standard__NativeString___to_s_with_length(var8, 1l);
+var7 = var9;
 varonce6 = var7;
 }
-var11 = NEW_standard__Array(&type_standard__Array__standard__Object);
-{ /* var11 = array_instance Array[Object] */
-var12 = 3;
-var13 = NEW_standard__NativeArray(var12, &type_standard__NativeArray__standard__Object);
-((struct instance_standard__NativeArray*)var13)->values[0] = (val*) var1;
-((struct instance_standard__NativeArray*)var13)->values[1] = (val*) var5;
-((struct instance_standard__NativeArray*)var13)->values[2] = (val*) var7;
-{
-((void (*)(val* self, val* p0, long p1))(var11->class->vft[COLOR_standard__array__Array__with_native]))(var11, var13, var12) /* with_native on <var11:Array[Object]>*/;
+((struct instance_standard__NativeArray*)var1)->values[2]=var7;
+} else {
+var1 = varonce;
+varonce = NULL;
 }
+{
+var10 = standard__string___Object___inspect_head(self);
 }
+((struct instance_standard__NativeArray*)var1)->values[1]=var10;
 {
-var14 = ((val* (*)(val* self))(var11->class->vft[COLOR_standard__string__Object__to_s]))(var11) /* to_s on <var11:Array[Object]>*/;
+var11 = ((val*(*)(val* self))(var1->class->vft[COLOR_standard__string__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
 }
-var = var14;
+varonce = var1;
+var = var11;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -9615,73 +9520,47 @@ return var;
 /* method string#Object#inspect_head for (self: Object): String */
 val* standard__string___Object___inspect_head(val* self) {
 val* var /* : String */;
-val* var1 /* : String */;
+val* var1 /* : NativeArray[String] */;
 static val* varonce;
-val* var2 /* : String */;
-char* var3 /* : NativeString */;
-long var4 /* : Int */;
+static val* varonce2;
+val* var3 /* : String */;
+char* var4 /* : NativeString */;
 val* var5 /* : FlatString */;
-long var6 /* : Int */;
-val* var7 /* : String */;
-val* var8 /* : Array[Object] */;
-long var9 /* : Int */;
-val* var10 /* : NativeArray[Object] */;
-val* var11 /* : String */;
-{
-var1 = standard__string___Object___class_name(self);
-}
-if (varonce) {
-var2 = varonce;
+val* var6 /* : String */;
+long var7 /* : Int */;
+val* var8 /* : String */;
+val* var9 /* : String */;
+if (unlikely(varonce==NULL)) {
+var1 = NEW_standard__NativeArray(3l, &type_standard__NativeArray__standard__String);
+if (likely(varonce2!=NULL)) {
+var3 = varonce2;
 } else {
-var3 = ":#";
-var4 = 2;
-var5 = standard___standard__NativeString___to_s_with_length(var3, var4);
-var2 = var5;
-varonce = var2;
-}
-{
-var6 = ((long (*)(val* self))(self->class->vft[COLOR_standard__kernel__Object__object_id]))(self) /* object_id on <self:Object>*/;
+var4 = ":#";
+var5 = standard___standard__NativeString___to_s_with_length(var4, 2l);
+var3 = var5;
+varonce2 = var3;
 }
-{
-var7 = standard__string___Int___to_hex(var6);
+((struct instance_standard__NativeArray*)var1)->values[1]=var3;
+} else {
+var1 = varonce;
+varonce = NULL;
 }
-var8 = NEW_standard__Array(&type_standard__Array__standard__Object);
-{ /* var8 = array_instance Array[Object] */
-var9 = 3;
-var10 = NEW_standard__NativeArray(var9, &type_standard__NativeArray__standard__Object);
-((struct instance_standard__NativeArray*)var10)->values[0] = (val*) var1;
-((struct instance_standard__NativeArray*)var10)->values[1] = (val*) var2;
-((struct instance_standard__NativeArray*)var10)->values[2] = (val*) var7;
 {
-((void (*)(val* self, val* p0, long p1))(var8->class->vft[COLOR_standard__array__Array__with_native]))(var8, var10, var9) /* with_native on <var8:Array[Object]>*/;
-}
+var6 = standard__string___Object___class_name(self);
 }
+((struct instance_standard__NativeArray*)var1)->values[0]=var6;
 {
-var11 = ((val* (*)(val* self))(var8->class->vft[COLOR_standard__string__Object__to_s]))(var8) /* to_s on <var8:Array[Object]>*/;
-}
-var = var11;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var7 = ((long(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_standard__kernel__Object__object_id]))(self); /* object_id on <self:Object>*/
 }
-/* method string#Object#args for (self: Object): Sequence[String] */
-val* standard__string___Object___args(val* self) {
-val* var /* : Sequence[String] */;
-val* var1 /* : Sys */;
-val* var3 /* : Sys */;
-val* var4 /* : Sequence[String] */;
 {
-{ /* Inline kernel#Object#sys (self) on <self:Object> */
-var3 = glob_sys;
-var1 = var3;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
+var8 = standard__string___Int___to_hex(var7);
 }
+((struct instance_standard__NativeArray*)var1)->values[2]=var8;
 {
-var4 = standard__string___Sys___program_args(var1);
+var9 = ((val*(*)(val* self))(var1->class->vft[COLOR_standard__string__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
 }
-var = var4;
+varonce = var1;
+var = var9;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
@@ -9695,27 +9574,24 @@ val* var1 /* : String */;
 static val* varonce2;
 val* var3 /* : String */;
 char* var4 /* : NativeString */;
-long var5 /* : Int */;
-val* var6 /* : FlatString */;
-static val* varonce7;
-static int varonce7_guard;
-val* var8 /* : String */;
-static val* varonce9;
-val* var10 /* : String */;
-char* var11 /* : NativeString */;
-long var12 /* : Int */;
-val* var13 /* : FlatString */;
+val* var5 /* : FlatString */;
+static val* varonce6;
+static int varonce6_guard;
+val* var7 /* : String */;
+static val* varonce8;
+val* var9 /* : String */;
+char* var10 /* : NativeString */;
+val* var11 /* : FlatString */;
 if (self){
-if (varonce_guard) {
+if (likely(varonce_guard)) {
 var1 = varonce;
 } else {
-if (varonce2) {
+if (likely(varonce2!=NULL)) {
 var3 = varonce2;
 } else {
 var4 = "true";
-var5 = 4;
-var6 = standard___standard__NativeString___to_s_with_length(var4, var5);
-var3 = var6;
+var5 = standard___standard__NativeString___to_s_with_length(var4, 4l);
+var3 = var5;
 varonce2 = var3;
 }
 var1 = var3;
@@ -9725,23 +9601,22 @@ varonce_guard = 1;
 var = var1;
 goto RET_LABEL;
 } else {
-if (varonce7_guard) {
-var8 = varonce7;
+if (likely(varonce6_guard)) {
+var7 = varonce6;
 } else {
-if (varonce9) {
-var10 = varonce9;
+if (likely(varonce8!=NULL)) {
+var9 = varonce8;
 } else {
-var11 = "false";
-var12 = 5;
-var13 = standard___standard__NativeString___to_s_with_length(var11, var12);
-var10 = var13;
-varonce9 = var10;
+var10 = "false";
+var11 = standard___standard__NativeString___to_s_with_length(var10, 5l);
+var9 = var11;
+varonce8 = var9;
 }
-var8 = var10;
-varonce7 = var8;
-varonce7_guard = 1;
+var7 = var9;
+varonce6 = var7;
+varonce6_guard = 1;
 }
-var = var8;
+var = var7;
 goto RET_LABEL;
 }
 RET_LABEL:;
@@ -9752,17 +9627,139 @@ val* VIRTUAL_standard__string___Bool___Object__to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
 short int var2 /* : Bool */;
-var2 = ((struct instance_standard__Bool*)self)->value; /* autounbox from Object to Bool */;
+var2 = (short int)((long)(self)>>2);
 var1 = standard__string___Bool___Object__to_s(var2);
 var = var1;
 RET_LABEL:;
 return var;
 }
+/* method string#Byte#byte_to_s_len for (self: Byte): Int */
+long standard__string___Byte___byte_to_s_len(unsigned char self) {
+long var /* : Int */;
+long var1 /* : Int for extern */;
+var1 = native_byte_length_str(self);
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Byte#native_byte_to_s for (self: Byte, NativeString, Int) */
+void standard__string___Byte___native_byte_to_s(unsigned char self, char* p0, long p1) {
+native_byte_to_s(self, p0, p1);
+RET_LABEL:;
+}
+/* method string#Byte#to_s for (self: Byte): String */
+val* standard__string___Byte___Object__to_s(unsigned char self) {
+val* var /* : String */;
+long var1 /* : Int */;
+long var3 /* : Int for extern */;
+long var_nslen /* var nslen: Int */;
+char* var4 /* : NativeString */;
+long var5 /* : Int */;
+short int var7 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+long var8 /* : Int */;
+char* var9 /* : NativeString */;
+char* var11 /* : NativeString */;
+char* var_ns /* var ns: NativeString */;
+long var13 /* : Int */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+const char* var_class_name18;
+long var19 /* : Int */;
+val* var21 /* : FlatString */;
+{
+{ /* Inline string#Byte#byte_to_s_len (self) on <self:Byte> */
+var3 = native_byte_length_str(self);
+var1 = var3;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+}
+var_nslen = var1;
+var4 = NULL/*special!*/;
+{
+{ /* Inline kernel#Int#+ (var_nslen,1l) on <var_nslen:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var7 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var7)) {
+var_class_name = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var8 = var_nslen + 1l;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+}
+{
+{ /* Inline string#NativeString#new (var4,var5) on <var4:NativeString> */
+var11 = (char*)nit_alloc(var5);
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
+}
+}
+var_ns = var9;
+{
+{ /* Inline string#NativeString#[]= (var_ns,var_nslen,'\000') on <var_ns:NativeString> */
+var_ns[var_nslen]=(unsigned char)'\000';
+RET_LABEL12:(void)0;
+}
+}
+{
+{ /* Inline kernel#Int#+ (var_nslen,1l) on <var_nslen:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var15 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var15)) {
+var_class_name18 = type_standard__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
+PRINT_ERROR(" (%s:%d)\n", FILE_standard__kernel, 537);
+fatal_exit(1);
+}
+var19 = var_nslen + 1l;
+var13 = var19;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
+}
+}
+{
+{ /* Inline string#Byte#native_byte_to_s (self,var_ns,var13) on <self:Byte> */
+native_byte_to_s(self, var_ns, var13);
+RET_LABEL20:(void)0;
+}
+}
+{
+var21 = standard___standard__NativeString___to_s_with_length(var_ns, var_nslen);
+}
+var = var21;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method string#Byte#to_s for (self: Object): String */
+val* VIRTUAL_standard__string___Byte___Object__to_s(val* self) {
+val* var /* : String */;
+val* var1 /* : String */;
+unsigned char var2 /* : Byte */;
+var2 = ((struct instance_standard__Byte*)self)->value; /* autounbox from Object to Byte */;
+var1 = standard__string___Byte___Object__to_s(var2);
+var = var1;
+RET_LABEL:;
+return var;
+}
 /* method string#Int#strerror_ext for (self: Int): NativeString */
 char* standard__string___Int___strerror_ext(long self) {
 char* var /* : NativeString */;
-char* var1 /* : NativeString */;
-var1 = string___Int_strerror_ext___impl(self);
+void* var1 /* : NativeString for extern */;
+var1 = strerror(self);
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
@@ -9772,11 +9769,11 @@ return var;
 val* standard__string___Int___strerror(long self) {
 val* var /* : String */;
 char* var1 /* : NativeString */;
-char* var3 /* : NativeString */;
+void* var3 /* : NativeString for extern */;
 val* var4 /* : String */;
 {
 { /* Inline string#Int#strerror_ext (self) on <self:Int> */
-var3 = string___Int_strerror_ext___impl(self);
+var3 = strerror(self);
 var1 = var3;
 goto RET_LABEL2;
 RET_LABEL2:(void)0;