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

diff --git a/c_src/core__abstract_text.sep.1.c b/c_src/core__abstract_text.sep.1.c
index 9d77a35..fd78569 100644
--- a/c_src/core__abstract_text.sep.1.c
+++ b/c_src/core__abstract_text.sep.1.c
@@ -1,60 +1,49 @@
 #include "core__abstract_text.sep.0.h"
-/* method abstract_text#Text#bytes for (self: Text): SequenceRead[Byte] */
-val* core___core__Text___bytes(val* self) {
-val* var /* : SequenceRead[Byte] */;
-const char* var_class_name;
-var_class_name = self == NULL ? "null" : self->type->name;
-PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "bytes", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 39);
-fatal_exit(1);
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#Text#length for (self: Text): Int */
+/* method abstract_text$Text$length for (self: Text): Int */
 long core___core__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_core__abstract_text, 44);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 45);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#bytelen for (self: Text): Int */
-long core___core__Text___bytelen(val* self) {
+/* method abstract_text$Text$byte_length for (self: Text): Int */
+long core___core__Text___byte_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`", "bytelen", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 51);
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "byte_length", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 52);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#substring for (self: Text, Int, Int): Text */
+/* method abstract_text$Text$substring for (self: Text, Int, Int): Text */
 val* core___core__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_core__abstract_text, 57);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 58);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#substrings for (self: Text): Iterator[FlatText] */
+/* method abstract_text$Text$substrings for (self: Text): Iterator[FlatText] */
 val* core___core__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_core__abstract_text, 70);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 71);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_empty for (self: Text): Bool */
+/* method abstract_text$Text$is_empty for (self: Text): Bool */
 short int core___core__Text___is_empty(val* self) {
 short int var /* : Bool */;
 long var1 /* : Int */;
@@ -64,7 +53,7 @@ short int var4 /* : Bool */;
 var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#== (var1,0l) on <var1:Int> */
+{ /* Inline kernel$Int$== (var1,0l) on <var1:Int> */
 var4 = var1 == 0l;
 var2 = var4;
 goto RET_LABEL3;
@@ -76,18 +65,36 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#empty for (self: Text): Text */
+/* method abstract_text$Text$empty for (self: Text): Text */
 val* core___core__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_core__abstract_text, 79);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 80);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#[] for (self: Text, Int): Char */
+/* method abstract_text$Text$first for (self: Text): Char */
+uint32_t core___core__Text___first(val* self) {
+uint32_t var /* : Char */;
+val* var1 /* : SequenceRead[Char] */;
+val* var2 /* : nullable Object */;
+uint32_t var3 /* : Char */;
+{
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__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_core__abstract_collection__SequenceRead___91d_93d]))(var1, 0l); /* [] on <var1:SequenceRead[Char]>*/
+}
+var3 = (uint32_t)((long)(var2)>>2);
+var = var3;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Text$[] for (self: Text, Int): Char */
 uint32_t core___core__Text____91d_93d(val* self, long p0) {
 uint32_t var /* : Char */;
 long var_index /* var index: Int */;
@@ -107,7 +114,21 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#last for (self: Text): Char */
+/* method abstract_text$Text$index_of for (self: Text, Char): Int */
+long core___core__Text___index_of(val* self, uint32_t p0) {
+long var /* : Int */;
+uint32_t var_c /* var c: Char */;
+long var1 /* : Int */;
+var_c = p0;
+{
+var1 = core___core__Text___index_of_from(self, var_c, 0l);
+}
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Text$last for (self: Text): Char */
 uint32_t core___core__Text___last(val* self) {
 uint32_t var /* : Char */;
 val* var1 /* : SequenceRead[Char] */;
@@ -127,14 +148,14 @@ var1 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__c
 var2 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var2,1l) on <var2:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var6 = var2 - 1l;
@@ -152,18 +173,163 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_cstring for (self: Text): NativeString */
+/* method abstract_text$Text$index_of_from for (self: Text, Char, Int): Int */
+long core___core__Text___index_of_from(val* self, uint32_t p0, long p1) {
+long var /* : Int */;
+uint32_t var_c /* var c: Char */;
+long var_pos /* var pos: Int */;
+val* var1 /* : SequenceRead[Char] */;
+val* var2 /* : IndexedIterator[nullable Object] */;
+val* var_iter /* var iter: IndexedIterator[Char] */;
+short int var3 /* : Bool */;
+val* var4 /* : nullable Object */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
+uint32_t var8 /* : Char */;
+long var9 /* : Int */;
+long var10 /* : Int */;
+long var12 /* : Int */;
+var_c = p0;
+var_pos = p1;
+{
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__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_core__abstract_collection__SequenceRead__iterator_from]))(var1, var_pos); /* iterator_from on <var1:SequenceRead[Char]>*/
+}
+var_iter = var2;
+for(;;) {
+{
+var3 = ((short int(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:var_iter->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_iter); /* is_ok on <var_iter:IndexedIterator[Char]>*/
+}
+if (var3){
+{
+var4 = ((val*(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:var_iter->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_iter); /* item on <var_iter:IndexedIterator[Char]>*/
+}
+{
+{ /* Inline kernel$Char$== (var4,var_c) on <var4:nullable Object(Char)> */
+var8 = (uint32_t)((long)(var4)>>2);
+var7 = var8 == var_c;
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+}
+if (var5){
+{
+var9 = ((long(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:var_iter->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var_iter); /* index on <var_iter:IndexedIterator[Char]>*/
+}
+var = var9;
+goto RET_LABEL;
+} else {
+}
+{
+((void(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:var_iter->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_iter); /* next on <var_iter:IndexedIterator[Char]>*/
+}
+} else {
+goto BREAK_label;
+}
+}
+BREAK_label: (void)0;
+{
+{ /* Inline kernel$Int$unary - (1l) on <1l:Int> */
+var12 = -1l;
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
+}
+}
+var = var10;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Text$last_index_of for (self: Text, Char): Int */
+long core___core__Text___last_index_of(val* self, uint32_t p0) {
+long var /* : Int */;
+uint32_t var_c /* var c: Char */;
+long var1 /* : Int */;
+long var2 /* : Int */;
+short int var4 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+long var5 /* : Int */;
+long var6 /* : Int */;
+var_c = p0;
+{
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+}
+{
+{ /* Inline kernel$Int$- (var1,1l) on <var1: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_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+fatal_exit(1);
+}
+var5 = var1 - 1l;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
+}
+}
+{
+var6 = core___core__Text___last_index_of_from(self, var_c, var2);
+}
+var = var6;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Text$to_cstring for (self: Text): CString */
 char* core___core__Text___to_cstring(val* self) {
-char* var /* : NativeString */;
+char* var /* : CString */;
 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_core__abstract_text, 137);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 141);
+fatal_exit(1);
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Text$last_index_of_from for (self: Text, Char, Int): Int */
+long core___core__Text___last_index_of_from(val* self, uint32_t p0, long p1) {
+long var /* : Int */;
+uint32_t var_item /* var item: Char */;
+long var_pos /* var pos: Int */;
+val* var1 /* : SequenceRead[Char] */;
+val* var2 /* : nullable Object */;
+long var3 /* : Int */;
+var_item = p0;
+var_pos = p1;
+{
+var1 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+}
+{
+var2 = (val*)((long)(var_item)<<2|2);
+var3 = ((long(*)(val* self, val* p0, long p1))((((long)var1&3)?class_info[((long)var1&3)]:var1->class)->vft[COLOR_core__abstract_collection__SequenceRead__last_index_of_from]))(var1, var2, var_pos); /* last_index_of_from on <var1:SequenceRead[Char]>*/
+}
+var = var3;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Text$+ for (self: Text, Text): Text */
+val* core___core__Text____43d(val* self, val* p0) {
+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`", "+", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 155);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#substring_from for (self: Text, Int): Text */
+/* method abstract_text$Text$substring_from for (self: Text, Int): Text */
 val* core___core__Text___substring_from(val* self, long p0) {
 val* var /* : Text */;
 long var_from /* var from: Int */;
@@ -194,14 +360,14 @@ var_from = p0;
 var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#>= (var_from,var1) on <var_from:Int> */
+{ /* Inline kernel$Int$>= (var_from,var1) on <var_from: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)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
 var5 = var_from >= var1;
@@ -219,14 +385,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#< (var_from,0l) on <var_from:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name12);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var13 = var_from < 0l;
@@ -243,14 +409,14 @@ var_from = 0l;
 var14 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var14,var_from) on <var14: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 */
 var17 = 1; /* easy <var_from:Int> isa OTHER*/
 if (unlikely(!var17)) {
 var_class_name20 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var21 = var14 - var_from;
@@ -267,7 +433,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#has_substring for (self: Text, String, Int): Bool */
+/* method abstract_text$Text$has_substring for (self: Text, String, Int): Bool */
 short int core___core__Text___has_substring(val* self, val* p0, long p1) {
 short int var /* : Bool */;
 val* var_str /* var str: String */;
@@ -322,14 +488,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#< (var_pos,0l) on <var_pos:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var6 = var_pos < 0l;
@@ -346,14 +512,14 @@ var2 = var_;
 var7 = ((long(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Text__length]))(var_str); /* length on <var_str:String>*/
 }
 {
-{ /* Inline kernel#Int#+ (var_pos,var7) on <var_pos:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var14 = var_pos + var7;
@@ -366,14 +532,14 @@ RET_LABEL9:(void)0;
 var15 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#> (var8,var15) on <var8:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var22 = var8 > var15;
@@ -424,7 +590,7 @@ var31 = ((val*(*)(val* self))((((long)var_myiter&3)?class_info[((long)var_myiter
 var32 = ((val*(*)(val* self))((((long)var_itsiter&3)?class_info[((long)var_itsiter&3)]:var_itsiter->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_itsiter); /* item on <var_itsiter:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Char#!= (var31,var32) on <var31:nullable Object(Char)> */
+{ /* Inline kernel$Char$!= (var31,var32) on <var31:nullable Object(Char)> */
 var35 = var31 == var32;
 var36 = !var35;
 var33 = var36;
@@ -461,7 +627,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#has_prefix for (self: Text, String): Bool */
+/* method abstract_text$Text$has_prefix for (self: Text, String): Bool */
 short int core___core__Text___has_prefix(val* self, val* p0) {
 short int var /* : Bool */;
 val* var_prefix /* var prefix: String */;
@@ -475,7 +641,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#has_suffix for (self: Text, String): Bool */
+/* method abstract_text$Text$has_suffix for (self: Text, String): Bool */
 short int core___core__Text___has_suffix(val* self, val* p0) {
 short int var /* : Bool */;
 val* var_suffix /* var suffix: String */;
@@ -496,14 +662,14 @@ var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var2 = ((long(*)(val* self))(var_suffix->class->vft[COLOR_core__abstract_text__Text__length]))(var_suffix); /* length on <var_suffix:String>*/
 }
 {
-{ /* Inline kernel#Int#- (var1,var2) on <var1:Int> */
+{ /* Inline kernel$Int$- (var1,var2) on <var1: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_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var6 = var1 - var2;
@@ -520,11 +686,11 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_f for (self: Text): Float */
+/* method abstract_text$Text$to_f for (self: Text): Float */
 double core___core__Text___to_f(val* self) {
 double var /* : Float */;
 val* var1 /* : String */;
-char* var2 /* : NativeString */;
+char* var2 /* : CString */;
 double var3 /* : Float */;
 double var5 /* : Float */;
 {
@@ -534,8 +700,8 @@ var1 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Object_
 var2 = ((char*(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__Text__to_cstring]))(var1); /* to_cstring on <var1:String>*/
 }
 {
-{ /* Inline native#NativeString#atof (var2) on <var2:NativeString> */
-var5 = native___NativeString_atof___impl(var2);
+{ /* Inline native$CString$atof (var2) on <var2:CString> */
+var5 = core__native___CString_atof___impl(var2);
 var3 = var5;
 goto RET_LABEL4;
 RET_LABEL4:(void)0;
@@ -546,7 +712,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_hex for (self: Text, nullable Int, nullable Int): Int */
+/* method abstract_text$Text$to_hex for (self: Text, nullable Int, nullable Int): Int */
 long core___core__Text___to_hex(val* self, val* p0, val* p1) {
 long var /* : Int */;
 val* var_pos /* var pos: nullable Int */;
@@ -606,7 +772,7 @@ var1 = 1; /* is null */
 var1 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Int#== (var_pos,((val*)NULL)) on <var_pos:nullable Int> */
+{ /* Inline kernel$Int$== (var_pos,((val*)NULL)) on <var_pos:nullable Int> */
 var4 = 0; /* incompatible types Int vs. null; cannot be NULL */
 var2 = var4;
 goto RET_LABEL3;
@@ -625,7 +791,7 @@ var6 = 1; /* is null */
 var6 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Int#== (var_ln,((val*)NULL)) on <var_ln:nullable Int> */
+{ /* Inline kernel$Int$== (var_ln,((val*)NULL)) on <var_ln:nullable Int> */
 var9 = 0; /* incompatible types Int vs. null; cannot be NULL */
 var7 = var9;
 goto RET_LABEL8;
@@ -638,14 +804,14 @@ if (var6){
 var10 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var10,var_pos) on <var10:Int> */
+{ /* Inline kernel$Int$- (var10,var_pos) on <var10:Int> */
 /* Covariant cast for argument 0 (i) <var_pos:nullable Int(Int)> isa OTHER */
 /* <var_pos:nullable Int(Int)> isa OTHER */
 var13 = 1; /* easy <var_pos:nullable Int(Int)> isa OTHER*/
 if (unlikely(!var13)) {
 var_class_name = var_pos == NULL ? "null" : (((long)var_pos&3)?type_info[((long)var_pos&3)]:var_pos->type)->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var14 = (long)(var_pos)>>2;
@@ -660,14 +826,14 @@ var_ln = var16;
 } else {
 }
 {
-{ /* Inline kernel#Int#+ (var_pos,var_ln) on <var_pos:nullable Int(Int)> */
+{ /* Inline kernel$Int$+ (var_pos,var_ln) on <var_pos:nullable Int(Int)> */
 /* Covariant cast for argument 0 (i) <var_ln:nullable Int(Int)> isa OTHER */
 /* <var_ln:nullable Int(Int)> isa OTHER */
 var19 = 1; /* easy <var_ln:nullable Int(Int)> isa OTHER*/
 if (unlikely(!var19)) {
 var_class_name22 = var_ln == NULL ? "null" : (((long)var_ln&3)?type_info[((long)var_ln&3)]:var_ln->type)->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name22);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var23 = (long)(var_pos)>>2;
@@ -684,14 +850,14 @@ var_i = var26;
 var_ = var_max;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
 var29 = 1; /* easy <var_:Int> isa OTHER*/
 if (unlikely(!var29)) {
 var_class_name32 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name32);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var33 = var_i < var_;
@@ -705,7 +871,7 @@ if (var27){
 goto BREAK_label;
 }
 {
-{ /* Inline kernel#Int#<< (var_res,4l) on <var_res:Int> */
+{ /* Inline kernel$Int$<< (var_res,4l) on <var_res:Int> */
 var36 = var_res << 4l;
 var34 = var36;
 goto RET_LABEL35;
@@ -720,14 +886,14 @@ var37 = ((uint32_t(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract
 var38 = core__abstract_text___Char___from_hex(var37);
 }
 {
-{ /* Inline kernel#Int#+ (var_res,var38) on <var_res:Int> */
+{ /* Inline kernel$Int$+ (var_res,var38) on <var_res:Int> */
 /* Covariant cast for argument 0 (i) <var38:Int> isa OTHER */
 /* <var38:Int> isa OTHER */
 var41 = 1; /* easy <var38:Int> isa OTHER*/
 if (unlikely(!var41)) {
 var_class_name44 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name44);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var45 = var_res + var38;
@@ -748,7 +914,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_oct for (self: Text): Int */
+/* method abstract_text$Text$to_oct for (self: Text): Int */
 long core___core__Text___to_oct(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -760,7 +926,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_bin for (self: Text): Int */
+/* method abstract_text$Text$to_bin for (self: Text): Int */
 long core___core__Text___to_bin(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -772,7 +938,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_dec for (self: Text): Int */
+/* method abstract_text$Text$to_dec for (self: Text): Int */
 long core___core__Text___to_dec(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -784,7 +950,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#a_to for (self: Text, Int): Int */
+/* method abstract_text$Text$a_to for (self: Text, Int): Int */
 long core___core__Text___a_to(val* self, long p0) {
 long var /* : Int */;
 long var_base /* var base: Int */;
@@ -844,14 +1010,14 @@ var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var_ = var1;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_j,var_) on <var_j:Int> */
+{ /* Inline kernel$Int$< (var_j,var_) on <var_j: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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var5 = var_j < var_;
@@ -877,14 +1043,14 @@ var9 = core___core__Char___to_i(var_c);
 }
 var_v = var9;
 {
-{ /* Inline kernel#Int#> (var_v,var_base) on <var_v:Int> */
+{ /* 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 */
 var12 = 1; /* easy <var_base:Int> isa OTHER*/
 if (unlikely(!var12)) {
 var_class_name15 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name15);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var16 = var_v > var_base;
@@ -896,7 +1062,7 @@ RET_LABEL11:(void)0;
 if (var10){
 if (var_neg){
 {
-{ /* Inline kernel#Int#unary - (var_i) on <var_i:Int> */
+{ /* Inline kernel$Int$unary - (var_i) on <var_i:Int> */
 var19 = -var_i;
 var17 = var19;
 goto RET_LABEL18;
@@ -911,14 +1077,14 @@ goto RET_LABEL;
 }
 } else {
 {
-{ /* Inline kernel#Int#< (var_v,0l) on <var_v:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name25);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var26 = var_v < 0l;
@@ -931,14 +1097,14 @@ if (var20){
 var_neg = 1;
 } else {
 {
-{ /* Inline kernel#Int#* (var_i,var_base) on <var_i:Int> */
+{ /* 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 */
 var29 = 1; /* easy <var_base:Int> isa OTHER*/
 if (unlikely(!var29)) {
 var_class_name32 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name32);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 735);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 732);
 fatal_exit(1);
 }
 var33 = var_i * var_base;
@@ -948,14 +1114,14 @@ RET_LABEL28:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var27,var_v) on <var27: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 */
 var36 = 1; /* easy <var_v:Int> isa OTHER*/
 if (unlikely(!var36)) {
 var_class_name39 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var40 = var27 + var_v;
@@ -975,7 +1141,7 @@ var_j = var41;
 BREAK_label: (void)0;
 if (var_neg){
 {
-{ /* Inline kernel#Int#unary - (var_i) on <var_i:Int> */
+{ /* Inline kernel$Int$unary - (var_i) on <var_i:Int> */
 var44 = -var_i;
 var42 = var44;
 goto RET_LABEL43;
@@ -991,7 +1157,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_numeric for (self: Text): Bool */
+/* method abstract_text$Text$is_numeric for (self: Text): Bool */
 short int core___core__Text___is_numeric(val* self) {
 short int var /* : Bool */;
 short int var_has_point /* var has_point: Bool */;
@@ -1095,7 +1261,7 @@ short int var106 /* : Bool */;
 short int var107 /* : Bool */;
 var_has_point = 0;
 {
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
+{ /* Inline kernel$Int$unary - (1l) on <1l:Int> */
 var3 = -1l;
 var1 = var3;
 goto RET_LABEL2;
@@ -1110,14 +1276,14 @@ var4 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var_ = var4;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var8 = var_i < var_;
@@ -1144,7 +1310,7 @@ var12 = core__abstract_text___Char___is_numeric(var_c);
 var13 = !var12;
 if (var13){
 {
-{ /* Inline kernel#Char#== (var_c,'.') on <var_c:Char> */
+{ /* Inline kernel$Char$== (var_c,'.') on <var_c:Char> */
 var17 = var_c == '.';
 var15 = var17;
 goto RET_LABEL16;
@@ -1162,7 +1328,7 @@ if (var14){
 var_has_point = 1;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'e') on <var_c:Char> */
+{ /* Inline kernel$Char$== (var_c,'e') on <var_c:Char> */
 var26 = var_c == 'e';
 var24 = var26;
 goto RET_LABEL25;
@@ -1172,7 +1338,7 @@ RET_LABEL25:(void)0;
 var_27 = var24;
 if (var24){
 {
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
+{ /* Inline kernel$Int$unary - (1l) on <1l:Int> */
 var30 = -1l;
 var28 = var30;
 goto RET_LABEL29;
@@ -1180,7 +1346,7 @@ RET_LABEL29:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#== (var_e_index,var28) on <var_e_index:Int> */
+{ /* Inline kernel$Int$== (var_e_index,var28) on <var_e_index:Int> */
 var33 = var_e_index == var28;
 var31 = var33;
 goto RET_LABEL32;
@@ -1194,14 +1360,14 @@ var23 = var_27;
 var_34 = var23;
 if (var23){
 {
-{ /* Inline kernel#Int#> (var_i,0l) on <var_i:Int> */
+{ /* Inline kernel$Int$> (var_i,0l) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var37 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var37)) {
 var_class_name40 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var41 = var_i > 0l;
@@ -1220,14 +1386,14 @@ if (var22){
 var43 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var43,1l) on <var43:Int> */
+{ /* Inline kernel$Int$- (var43,1l) on <var43: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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var50 = var43 - 1l;
@@ -1237,14 +1403,14 @@ RET_LABEL45:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var_i,var44) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var44) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var44:Int> isa OTHER */
 /* <var44:Int> isa OTHER */
 var53 = 1; /* easy <var44:Int> isa OTHER*/
 if (unlikely(!var53)) {
 var_class_name56 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name56);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var57 = var_i < var44;
@@ -1263,14 +1429,14 @@ if (var21){
 var59 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var_i,1l) on <var_i:Int> */
+{ /* Inline kernel$Int$- (var_i,1l) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var62 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var62)) {
 var_class_name65 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name65);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var66 = var_i - 1l;
@@ -1283,7 +1449,7 @@ RET_LABEL61:(void)0;
 var67 = ((val*(*)(val* self, long p0))((((long)var59&3)?class_info[((long)var59&3)]:var59->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var59, var60); /* [] on <var59:SequenceRead[Char]>*/
 }
 {
-{ /* Inline kernel#Char#!= (var67,'-') on <var67:nullable Object(Char)> */
+{ /* Inline kernel$Char$!= (var67,'-') on <var67:nullable Object(Char)> */
 var71 = (uint32_t)((long)(var67)>>2);
 var70 = var71 == '-';
 var72 = !var70;
@@ -1300,7 +1466,7 @@ if (var20){
 var_e_index = var_i;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'-') on <var_c:Char> */
+{ /* Inline kernel$Char$== (var_c,'-') on <var_c:Char> */
 var77 = var_c == '-';
 var75 = var77;
 goto RET_LABEL76;
@@ -1310,14 +1476,14 @@ RET_LABEL76:(void)0;
 var_78 = var75;
 if (var75){
 {
-{ /* Inline kernel#Int#+ (var_e_index,1l) on <var_e_index:Int> */
+{ /* Inline kernel$Int$+ (var_e_index,1l) on <var_e_index:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var81 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var81)) {
 var_class_name84 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name84);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var85 = var_e_index + 1l;
@@ -1327,7 +1493,7 @@ RET_LABEL80:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#== (var_i,var79) on <var_i:Int> */
+{ /* Inline kernel$Int$== (var_i,var79) on <var_i:Int> */
 var88 = var_i == var79;
 var86 = var88;
 goto RET_LABEL87;
@@ -1344,14 +1510,14 @@ if (var74){
 var90 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var90,1l) on <var90:Int> */
+{ /* Inline kernel$Int$- (var90,1l) on <var90:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var93 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var93)) {
 var_class_name96 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name96);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var97 = var90 - 1l;
@@ -1361,14 +1527,14 @@ RET_LABEL92:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var_i,var91) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var91) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var91:Int> isa OTHER */
 /* <var91:Int> isa OTHER */
 var100 = 1; /* easy <var91:Int> isa OTHER*/
 if (unlikely(!var100)) {
 var_class_name103 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name103);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var104 = var_i < var91;
@@ -1405,7 +1571,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_hex for (self: Text): Bool */
+/* method abstract_text$Text$is_hex for (self: Text): Bool */
 short int core___core__Text___is_hex(val* self) {
 short int var /* : Bool */;
 long var_i /* var i: Int */;
@@ -1478,14 +1644,14 @@ var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var_ = var1;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var5 = var_i < var_;
@@ -1507,14 +1673,14 @@ var7 = ((val*(*)(val* self, long p0))((((long)var6&3)?class_info[((long)var6&3)]
 var8 = (uint32_t)((long)(var7)>>2);
 var_c = var8;
 {
-{ /* Inline kernel#Char#>= (var_c,'a') on <var_c:Char> */
+{ /* Inline kernel$Char$>= (var_c,'a') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'a':Char> isa OTHER */
 /* <'a':Char> isa OTHER */
 var14 = 1; /* easy <'a':Char> isa OTHER*/
 if (unlikely(!var14)) {
 var_class_name17 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var18 = var_c >= 'a';
@@ -1526,14 +1692,14 @@ RET_LABEL13:(void)0;
 var_19 = var12;
 if (var12){
 {
-{ /* Inline kernel#Char#<= (var_c,'f') on <var_c:Char> */
+{ /* Inline kernel$Char$<= (var_c,'f') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'f':Char> isa OTHER */
 /* <'f':Char> isa OTHER */
 var22 = 1; /* easy <'f':Char> isa OTHER*/
 if (unlikely(!var22)) {
 var_class_name25 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name25);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var26 = var_c <= 'f';
@@ -1550,14 +1716,14 @@ var27 = !var11;
 var_28 = var27;
 if (var27){
 {
-{ /* Inline kernel#Char#>= (var_c,'A') on <var_c:Char> */
+{ /* Inline kernel$Char$>= (var_c,'A') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'A':Char> isa OTHER */
 /* <'A':Char> isa OTHER */
 var32 = 1; /* easy <'A':Char> isa OTHER*/
 if (unlikely(!var32)) {
 var_class_name35 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name35);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var36 = var_c >= 'A';
@@ -1569,14 +1735,14 @@ RET_LABEL31:(void)0;
 var_37 = var30;
 if (var30){
 {
-{ /* Inline kernel#Char#<= (var_c,'F') on <var_c:Char> */
+{ /* Inline kernel$Char$<= (var_c,'F') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'F':Char> isa OTHER */
 /* <'F':Char> isa OTHER */
 var40 = 1; /* easy <'F':Char> isa OTHER*/
 if (unlikely(!var40)) {
 var_class_name43 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name43);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var44 = var_c <= 'F';
@@ -1597,14 +1763,14 @@ var10 = var_28;
 var_46 = var10;
 if (var10){
 {
-{ /* Inline kernel#Char#>= (var_c,'0') on <var_c:Char> */
+{ /* Inline kernel$Char$>= (var_c,'0') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
 var50 = 1; /* easy <'0':Char> isa OTHER*/
 if (unlikely(!var50)) {
 var_class_name53 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var54 = var_c >= '0';
@@ -1616,14 +1782,14 @@ RET_LABEL49:(void)0;
 var_55 = var48;
 if (var48){
 {
-{ /* Inline kernel#Char#<= (var_c,'9') on <var_c:Char> */
+{ /* Inline kernel$Char$<= (var_c,'9') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
 /* <'9':Char> isa OTHER */
 var58 = 1; /* easy <'9':Char> isa OTHER*/
 if (unlikely(!var58)) {
 var_class_name61 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name61);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var62 = var_c <= '9';
@@ -1657,7 +1823,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_bin for (self: Text): Bool */
+/* method abstract_text$Text$is_bin for (self: Text): Bool */
 short int core___core__Text___is_bin(val* self) {
 short int var /* : Bool */;
 val* var1 /* : SequenceRead[Char] */;
@@ -1698,7 +1864,7 @@ var5 = ((val*(*)(val* self))((((long)var_3&3)?class_info[((long)var_3&3)]:var_3-
 var6 = (uint32_t)((long)(var5)>>2);
 var_i = var6;
 {
-{ /* Inline kernel#Char#!= (var_i,'0') on <var_i:Char> */
+{ /* Inline kernel$Char$!= (var_i,'0') on <var_i:Char> */
 var10 = var_i == '0';
 var11 = !var10;
 var8 = var11;
@@ -1709,7 +1875,7 @@ RET_LABEL9:(void)0;
 var_12 = var8;
 if (var8){
 {
-{ /* Inline kernel#Char#!= (var_i,'1') on <var_i:Char> */
+{ /* Inline kernel$Char$!= (var_i,'1') on <var_i:Char> */
 var15 = var_i == '1';
 var16 = !var15;
 var13 = var16;
@@ -1739,7 +1905,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_oct for (self: Text): Bool */
+/* method abstract_text$Text$is_oct for (self: Text): Bool */
 short int core___core__Text___is_oct(val* self) {
 short int var /* : Bool */;
 val* var1 /* : SequenceRead[Char] */;
@@ -1786,14 +1952,14 @@ var5 = ((val*(*)(val* self))((((long)var_3&3)?class_info[((long)var_3&3)]:var_3-
 var6 = (uint32_t)((long)(var5)>>2);
 var_i = var6;
 {
-{ /* Inline kernel#Char#< (var_i,'0') on <var_i:Char> */
+{ /* Inline kernel$Char$< (var_i,'0') on <var_i:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
 var10 = 1; /* easy <'0':Char> isa OTHER*/
 if (unlikely(!var10)) {
 var_class_name = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 923);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 914);
 fatal_exit(1);
 }
 var11 = var_i < '0';
@@ -1807,14 +1973,14 @@ if (var8){
 var7 = var_12;
 } else {
 {
-{ /* Inline kernel#Char#> (var_i,'7') on <var_i:Char> */
+{ /* Inline kernel$Char$> (var_i,'7') on <var_i:Char> */
 /* Covariant cast for argument 0 (i) <'7':Char> isa OTHER */
 /* <'7':Char> isa OTHER */
 var15 = 1; /* easy <'7':Char> isa OTHER*/
 if (unlikely(!var15)) {
 var_class_name18 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 925);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 916);
 fatal_exit(1);
 }
 var19 = var_i > '7';
@@ -1843,7 +2009,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_dec for (self: Text): Bool */
+/* method abstract_text$Text$is_dec for (self: Text): Bool */
 short int core___core__Text___is_dec(val* self) {
 short int var /* : Bool */;
 val* var1 /* : SequenceRead[Char] */;
@@ -1890,14 +2056,14 @@ var5 = ((val*(*)(val* self))((((long)var_3&3)?class_info[((long)var_3&3)]:var_3-
 var6 = (uint32_t)((long)(var5)>>2);
 var_i = var6;
 {
-{ /* Inline kernel#Char#< (var_i,'0') on <var_i:Char> */
+{ /* Inline kernel$Char$< (var_i,'0') on <var_i:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
 var10 = 1; /* easy <'0':Char> isa OTHER*/
 if (unlikely(!var10)) {
 var_class_name = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 923);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 914);
 fatal_exit(1);
 }
 var11 = var_i < '0';
@@ -1911,14 +2077,14 @@ if (var8){
 var7 = var_12;
 } else {
 {
-{ /* Inline kernel#Char#> (var_i,'9') on <var_i:Char> */
+{ /* Inline kernel$Char$> (var_i,'9') on <var_i:Char> */
 /* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
 /* <'9':Char> isa OTHER */
 var15 = 1; /* easy <'9':Char> isa OTHER*/
 if (unlikely(!var15)) {
 var_class_name18 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 925);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 916);
 fatal_exit(1);
 }
 var19 = var_i > '9';
@@ -1947,7 +2113,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#is_lower for (self: Text): Bool */
+/* method abstract_text$Text$is_lower for (self: Text): Bool */
 short int core___core__Text___is_lower(val* self) {
 short int var /* : Bool */;
 long var_i /* var i: Int */;
@@ -1972,14 +2138,14 @@ var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var_ = var1;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var5 = var_i < var_;
@@ -2019,7 +2185,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#l_trim for (self: Text): Text */
+/* method abstract_text$Text$l_trim for (self: Text): Text */
 val* core___core__Text___l_trim(val* self) {
 val* var /* : Text */;
 val* var1 /* : SequenceRead[Char] */;
@@ -2076,7 +2242,7 @@ var8 = ((long(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:
 var9 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#== (var8,var9) on <var8:Int> */
+{ /* Inline kernel$Int$== (var8,var9) on <var8:Int> */
 var12 = var8 == var9;
 var10 = var12;
 goto RET_LABEL11;
@@ -2102,7 +2268,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#r_trim for (self: Text): Text */
+/* method abstract_text$Text$r_trim for (self: Text): Text */
 val* core___core__Text___r_trim(val* self) {
 val* var /* : Text */;
 val* var1 /* : SequenceRead[Char] */;
@@ -2165,14 +2331,14 @@ BREAK_label: (void)0;
 var8 = ((long(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:var_iter->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var_iter); /* index on <var_iter:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Int#< (var8,0l) on <var8:Int> */
+{ /* Inline kernel$Int$< (var8,0l) on <var8:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var11 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var11)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var12 = var8 < 0l;
@@ -2193,14 +2359,14 @@ goto RET_LABEL;
 var14 = ((long(*)(val* self))((((long)var_iter&3)?class_info[((long)var_iter&3)]:var_iter->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var_iter); /* index on <var_iter:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Int#+ (var14,1l) on <var14:Int> */
+{ /* Inline kernel$Int$+ (var14,1l) on <var14:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var17 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var17)) {
 var_class_name20 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var21 = var14 + 1l;
@@ -2217,7 +2383,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#trim for (self: Text): Text */
+/* method abstract_text$Text$trim for (self: Text): Text */
 val* core___core__Text___trim(val* self) {
 val* var /* : Text */;
 val* var1 /* : Text */;
@@ -2245,7 +2411,7 @@ var3 = var2->type->type_table[cltype] == idtype;
 if (unlikely(!var3)) {
 var_class_name = var2 == NULL ? "null" : var2->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELFTYPE", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 446);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 456);
 fatal_exit(1);
 }
 var = var2;
@@ -2253,7 +2419,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#chomp for (self: Text): Text */
+/* method abstract_text$Text$chomp for (self: Text): Text */
 val* core___core__Text___chomp(val* self) {
 val* var /* : Text */;
 long var1 /* : Int */;
@@ -2324,7 +2490,7 @@ var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 }
 var_len = var1;
 {
-{ /* Inline kernel#Int#== (var_len,0l) on <var_len:Int> */
+{ /* Inline kernel$Int$== (var_len,0l) on <var_len:Int> */
 var4 = var_len == 0l;
 var2 = var4;
 goto RET_LABEL3;
@@ -2344,7 +2510,7 @@ var5 = self->type->type_table[cltype] == idtype;
 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_core__abstract_text, 485);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 495);
 fatal_exit(1);
 }
 var = self;
@@ -2360,7 +2526,7 @@ var7 = ((val*(*)(val* self))((((long)var6&3)?class_info[((long)var6&3)]:var6->cl
 var8 = (uint32_t)((long)(var7)>>2);
 var_l = var8;
 {
-{ /* Inline kernel#Char#== (var_l,'\015') on <var_l:Char> */
+{ /* Inline kernel$Char$== (var_l,'\015') on <var_l:Char> */
 var11 = var_l == '\015';
 var9 = var11;
 goto RET_LABEL10;
@@ -2369,14 +2535,14 @@ RET_LABEL10:(void)0;
 }
 if (var9){
 {
-{ /* Inline kernel#Int#- (var_len,1l) on <var_len:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var18 = var_len - 1l;
@@ -2392,7 +2558,7 @@ var = var19;
 goto RET_LABEL;
 } else {
 {
-{ /* Inline kernel#Char#!= (var_l,'\n') on <var_l:Char> */
+{ /* Inline kernel$Char$!= (var_l,'\n') on <var_l:Char> */
 var22 = var_l == '\n';
 var23 = !var22;
 var20 = var23;
@@ -2413,21 +2579,21 @@ var24 = self->type->type_table[cltype25] == idtype26;
 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_core__abstract_text, 490);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 500);
 fatal_exit(1);
 }
 var = self;
 goto RET_LABEL;
 } else {
 {
-{ /* Inline kernel#Int#> (var_len,1l) on <var_len:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name35);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var36 = var_len > 1l;
@@ -2442,14 +2608,14 @@ if (var30){
 var37 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-{ /* Inline kernel#Int#- (var_len,2l) on <var_len:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name43);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var44 = var_len - 2l;
@@ -2462,7 +2628,7 @@ RET_LABEL39:(void)0;
 var45 = ((val*(*)(val* self, long p0))((((long)var37&3)?class_info[((long)var37&3)]:var37->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var37, var38); /* [] on <var37:SequenceRead[Char]>*/
 }
 {
-{ /* Inline kernel#Char#== (var45,'\015') on <var45:nullable Object(Char)> */
+{ /* Inline kernel$Char$== (var45,'\015') on <var45:nullable Object(Char)> */
 var49 = (uint32_t)((long)(var45)>>2);
 var48 = var49 == '\015';
 var46 = var48;
@@ -2476,14 +2642,14 @@ var29 = var_;
 }
 if (var29){
 {
-{ /* Inline kernel#Int#- (var_len,2l) on <var_len:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var56 = var_len - 2l;
@@ -2499,14 +2665,14 @@ var = var57;
 goto RET_LABEL;
 } else {
 {
-{ /* Inline kernel#Int#- (var_len,1l) on <var_len:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var64 = var_len - 1l;
@@ -2526,109 +2692,112 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#to_cmangle for (self: Text): String */
+/* method abstract_text$Text$to_cmangle for (self: Text): String */
 val* core___core__Text___to_cmangle(val* self) {
 val* var /* : String */;
 short int var1 /* : Bool */;
 static val* varonce;
 val* var2 /* : String */;
-char* var3 /* : NativeString */;
+char* var3 /* : CString */;
 val* var4 /* : String */;
-val* var5 /* : Buffer */;
-val* var6 /* : Buffer */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Int */;
+val* var7 /* : nullable Bool */;
+val* var8 /* : nullable Bool */;
+static val* varoncenew;
+static int varoncenew_guard;
+val* var9 /* : Buffer */;
+val* var10 /* : Buffer */;
+val* var11 /* : Buffer */;
 val* var_res /* var res: Buffer */;
 short int var_underscore /* var underscore: Bool */;
 long var_start /* var start: Int */;
-val* var7 /* : SequenceRead[Char] */;
-val* var8 /* : nullable Object */;
-uint32_t var9 /* : Char */;
+uint32_t var12 /* : Char */;
 uint32_t var_c /* var c: Char */;
-short int var10 /* : Bool */;
-short int var11 /* : Bool */;
 short int var13 /* : Bool */;
+short int var14 /* : Bool */;
+short int var16 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var14 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var15 /* : Bool */;
 short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-const char* var_class_name20;
-short int var21 /* : Bool */;
-long var22 /* : Int */;
-long var24 /* : Int */;
-val* var25 /* : String */;
+short int var_ /* var : Bool */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+const char* var_class_name23;
+short int var24 /* : Bool */;
+long var25 /* : Int */;
+long var27 /* : Int */;
+val* var28 /* : String */;
 long var_i /* var i: Int */;
-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 */;
+long var29 /* : Int */;
+long var_30 /* var : Int */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
+short int var37 /* : Bool */;
+uint32_t var38 /* : Char */;
 short int var39 /* : 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 */;
-short int var50 /* : Bool */;
-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 var41 /* : Bool */;
+short int var43 /* : Bool */;
+int cltype44;
+int idtype45;
+const char* var_class_name46;
+short int var47 /* : Bool */;
+short int var_48 /* var : Bool */;
+short int var49 /* : Bool */;
+short int var51 /* : Bool */;
+int cltype52;
+int idtype53;
+const char* var_class_name54;
+short int var55 /* : Bool */;
+short int var_56 /* var : Bool */;
 short int var57 /* : Bool */;
-short int var59 /* : Bool */;
-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 var67 /* : Bool */;
-int cltype68;
-int idtype69;
-const char* var_class_name70;
-short int var71 /* : Bool */;
-long var73 /* : Int */;
-long var75 /* : Int */;
-val* var76 /* : String */;
-short int var77 /* : Bool */;
+short int var58 /* : Bool */;
+short int var60 /* : Bool */;
+int cltype61;
+int idtype62;
+const char* var_class_name63;
+short int var64 /* : Bool */;
+short int var_65 /* var : Bool */;
+short int var66 /* : Bool */;
+short int var68 /* : Bool */;
+int cltype69;
+int idtype70;
+const char* var_class_name71;
+short int var72 /* : Bool */;
+long var74 /* : Int */;
+long var76 /* : Int */;
+val* var77 /* : String */;
 short int var78 /* : Bool */;
-short int var80 /* : Bool */;
-int cltype81;
-int idtype82;
-const char* var_class_name83;
-short int var84 /* : Bool */;
-short int var_85 /* var : Bool */;
-short int var86 /* : Bool */;
-short int var88 /* : Bool */;
-int cltype89;
-int idtype90;
-const char* var_class_name91;
-short int var92 /* : Bool */;
+short int var79 /* : Bool */;
+short int var81 /* : Bool */;
+int cltype82;
+int idtype83;
+const char* var_class_name84;
+short int var85 /* : Bool */;
+short int var_86 /* var : Bool */;
+short int var87 /* : Bool */;
+short int var89 /* : Bool */;
+int cltype90;
+int idtype91;
+const char* var_class_name92;
 short int var93 /* : Bool */;
-short int var95 /* : Bool */;
-long var96 /* : Int */;
-long var98 /* : Int */;
-val* var99 /* : String */;
-long var100 /* : Int */;
+short int var94 /* : Bool */;
+short int var96 /* : Bool */;
+long var97 /* : Int */;
+long var99 /* : Int */;
+val* var100 /* : String */;
 long var101 /* : Int */;
-long var103 /* : Int */;
-val* var104 /* : String */;
+long var102 /* : Int */;
+long var104 /* : Int */;
 val* var105 /* : String */;
+val* var106 /* : String */;
 {
 var1 = ((short int(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__is_empty]))(self); /* is_empty on <self:Text>*/
 }
@@ -2637,7 +2806,11 @@ if (likely(varonce!=NULL)) {
 var2 = varonce;
 } else {
 var3 = "";
-var4 = core__flat___NativeString___to_s_full(var3, 0l, 0l);
+var5 = (val*)(0l<<2|1);
+var6 = (val*)(0l<<2|1);
+var7 = (val*)((long)(0)<<2|3);
+var8 = (val*)((long)(0)<<2|3);
+var4 = core__flat___CString___to_s_unsafe(var3, var5, var6, var7, var8);
 var2 = var4;
 varonce = var2;
 }
@@ -2645,78 +2818,81 @@ var = var2;
 goto RET_LABEL;
 } else {
 }
-var5 = NEW_core__Buffer(&type_core__Buffer);
+if (likely(varoncenew_guard)) {
+var9 = varoncenew;
+} else {
+var10 = NEW_core__Buffer(&type_core__Buffer);
+var9 = var10;
+varoncenew = var9;
+varoncenew_guard = 1;
+}
 {
-var6 = core__flat___Buffer___new(var5);
+var11 = core__flat___Buffer___new(var9);
 }
-var_res = var6;
+var_res = var11;
 var_underscore = 0;
 var_start = 0l;
 {
-var7 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
-}
-{
-var8 = ((val*(*)(val* self, long p0))((((long)var7&3)?class_info[((long)var7&3)]:var7->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var7, 0l); /* [] on <var7:SequenceRead[Char]>*/
+var12 = ((uint32_t(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(self, 0l); /* [] on <self:Text>*/
 }
-var9 = (uint32_t)((long)(var8)>>2);
-var_c = var9;
+var_c = var12;
 {
-{ /* Inline kernel#Char#>= (var_c,'0') on <var_c:Char> */
+{ /* 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)) {
+var16 = 1; /* easy <'0':Char> isa OTHER*/
+if (unlikely(!var16)) {
 var_class_name = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
-var14 = var_c >= '0';
-var11 = var14;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var17 = var_c >= '0';
+var14 = var17;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
-var_ = var11;
-if (var11){
+var_ = var14;
+if (var14){
 {
-{ /* Inline kernel#Char#<= (var_c,'9') on <var_c:Char> */
+{ /* 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_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+var20 = 1; /* easy <'9':Char> isa OTHER*/
+if (unlikely(!var20)) {
+var_class_name23 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name23);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
-var21 = var_c <= '9';
-var15 = var21;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
+var24 = var_c <= '9';
+var18 = var24;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
 }
-var10 = var15;
+var13 = var18;
 } else {
-var10 = var_;
+var13 = var_;
 }
-if (var10){
+if (var13){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, '_'); /* add on <var_res:Buffer>*/
 }
 {
-{ /* Inline kernel#Char#code_point (var_c) on <var_c:Char> */
-var24 = (long)var_c;
-var22 = var24;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
+{ /* Inline kernel$Char$code_point (var_c) on <var_c:Char> */
+var27 = (long)var_c;
+var25 = var27;
+goto RET_LABEL26;
+RET_LABEL26:(void)0;
 }
 }
 {
-var25 = core__flat___Int___core__abstract_text__Object__to_s(var22);
+var28 = core__flat___Int___core__abstract_text__Object__to_s(var25);
 }
 {
-((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var25); /* append on <var_res:Buffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var28); /* append on <var_res:Buffer>*/
 }
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
@@ -2726,147 +2902,143 @@ var_start = 1l;
 }
 var_i = var_start;
 {
-var26 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+var29 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
-var_27 = var26;
+var_30 = var29;
 for(;;) {
 {
-{ /* 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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+{ /* Inline kernel$Int$< (var_i,var_30) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var_30:Int> isa OTHER */
+/* <var_30:Int> isa OTHER */
+var33 = 1; /* easy <var_30:Int> isa OTHER*/
+if (unlikely(!var33)) {
+var_class_name36 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var34 = var_i < var_27;
-var28 = var34;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+var37 = var_i < var_30;
+var31 = var37;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
 }
-if (var28){
+if (var31){
 } else {
 goto BREAK_label;
 }
 {
-var35 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+var38 = ((uint32_t(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(self, var_i); /* [] on <self:Text>*/
 }
+var_c = var38;
 {
-var36 = ((val*(*)(val* self, long p0))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var35, var_i); /* [] on <var35:SequenceRead[Char]>*/
-}
-var37 = (uint32_t)((long)(var36)>>2);
-var_c = var37;
-{
-{ /* Inline kernel#Char#>= (var_c,'a') on <var_c:Char> */
+{ /* 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_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name45);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+var43 = 1; /* easy <'a':Char> isa OTHER*/
+if (unlikely(!var43)) {
+var_class_name46 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name46);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
-var46 = var_c >= 'a';
-var40 = var46;
-goto RET_LABEL41;
-RET_LABEL41:(void)0;
+var47 = var_c >= 'a';
+var41 = var47;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
 }
-var_47 = var40;
-if (var40){
+var_48 = var41;
+if (var41){
 {
-{ /* Inline kernel#Char#<= (var_c,'z') on <var_c:Char> */
+{ /* 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_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+var51 = 1; /* easy <'z':Char> isa OTHER*/
+if (unlikely(!var51)) {
+var_class_name54 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name54);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
-var54 = var_c <= 'z';
-var48 = var54;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var55 = var_c <= 'z';
+var49 = var55;
+goto RET_LABEL50;
+RET_LABEL50:(void)0;
 }
 }
-var39 = var48;
+var40 = var49;
 } else {
-var39 = var_47;
+var40 = var_48;
 }
-var_55 = var39;
-if (var39){
-var38 = var_55;
+var_56 = var40;
+if (var40){
+var39 = var_56;
 } else {
 {
-{ /* Inline kernel#Char#>= (var_c,'A') on <var_c:Char> */
+{ /* 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_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name62);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+var60 = 1; /* easy <'A':Char> isa OTHER*/
+if (unlikely(!var60)) {
+var_class_name63 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
-var63 = var_c >= 'A';
-var57 = var63;
-goto RET_LABEL58;
-RET_LABEL58:(void)0;
+var64 = var_c >= 'A';
+var58 = var64;
+goto RET_LABEL59;
+RET_LABEL59:(void)0;
 }
 }
-var_64 = var57;
-if (var57){
+var_65 = var58;
+if (var58){
 {
-{ /* Inline kernel#Char#<= (var_c,'Z') on <var_c:Char> */
+{ /* 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_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name70);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+var68 = 1; /* easy <'Z':Char> isa OTHER*/
+if (unlikely(!var68)) {
+var_class_name71 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name71);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
-var71 = var_c <= 'Z';
-var65 = var71;
-goto RET_LABEL66;
-RET_LABEL66:(void)0;
+var72 = var_c <= 'Z';
+var66 = var72;
+goto RET_LABEL67;
+RET_LABEL67:(void)0;
 }
 }
-var56 = var65;
+var57 = var66;
 } else {
-var56 = var_64;
+var57 = var_65;
 }
-var38 = var56;
+var39 = var57;
 }
-if (var38){
+if (var39){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
 var_underscore = 0;
-goto BREAK_label72;
+goto BREAK_label73;
 } else {
 }
 if (var_underscore){
 {
-{ /* Inline kernel#Char#code_point ('_') on <'_':Char> */
-var75 = (long)'_';
-var73 = var75;
-goto RET_LABEL74;
-RET_LABEL74:(void)0;
+{ /* Inline kernel$Char$code_point ('_') on <'_':Char> */
+var76 = (long)'_';
+var74 = var76;
+goto RET_LABEL75;
+RET_LABEL75:(void)0;
 }
 }
 {
-var76 = core__flat___Int___core__abstract_text__Object__to_s(var73);
+var77 = core__flat___Int___core__abstract_text__Object__to_s(var74);
 }
 {
-((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var76); /* append on <var_res:Buffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var77); /* append on <var_res:Buffer>*/
 }
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
@@ -2874,60 +3046,60 @@ var76 = core__flat___Int___core__abstract_text__Object__to_s(var73);
 } else {
 }
 {
-{ /* Inline kernel#Char#>= (var_c,'0') on <var_c:Char> */
+{ /* Inline kernel$Char$>= (var_c,'0') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
-var80 = 1; /* easy <'0':Char> isa OTHER*/
-if (unlikely(!var80)) {
-var_class_name83 = type_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name83);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+var81 = 1; /* easy <'0':Char> isa OTHER*/
+if (unlikely(!var81)) {
+var_class_name84 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name84);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
-var84 = var_c >= '0';
-var78 = var84;
-goto RET_LABEL79;
-RET_LABEL79:(void)0;
+var85 = var_c >= '0';
+var79 = var85;
+goto RET_LABEL80;
+RET_LABEL80:(void)0;
 }
 }
-var_85 = var78;
-if (var78){
+var_86 = var79;
+if (var79){
 {
-{ /* Inline kernel#Char#<= (var_c,'9') on <var_c:Char> */
+{ /* Inline kernel$Char$<= (var_c,'9') on <var_c:Char> */
 /* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
 /* <'9':Char> isa OTHER */
-var88 = 1; /* easy <'9':Char> isa OTHER*/
-if (unlikely(!var88)) {
-var_class_name91 = type_core__Char.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name91);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+var89 = 1; /* easy <'9':Char> isa OTHER*/
+if (unlikely(!var89)) {
+var_class_name92 = type_core__Char.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name92);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
-var92 = var_c <= '9';
-var86 = var92;
-goto RET_LABEL87;
-RET_LABEL87:(void)0;
+var93 = var_c <= '9';
+var87 = var93;
+goto RET_LABEL88;
+RET_LABEL88:(void)0;
 }
 }
-var77 = var86;
+var78 = var87;
 } else {
-var77 = var_85;
+var78 = var_86;
 }
-if (var77){
+if (var78){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
 var_underscore = 0;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'_') on <var_c:Char> */
-var95 = var_c == '_';
-var93 = var95;
-goto RET_LABEL94;
-RET_LABEL94:(void)0;
+{ /* Inline kernel$Char$== (var_c,'_') on <var_c:Char> */
+var96 = var_c == '_';
+var94 = var96;
+goto RET_LABEL95;
+RET_LABEL95:(void)0;
 }
 }
-if (var93){
+if (var94){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
@@ -2937,18 +3109,18 @@ var_underscore = 1;
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, '_'); /* add on <var_res:Buffer>*/
 }
 {
-{ /* Inline kernel#Char#code_point (var_c) on <var_c:Char> */
-var98 = (long)var_c;
-var96 = var98;
-goto RET_LABEL97;
-RET_LABEL97:(void)0;
+{ /* Inline kernel$Char$code_point (var_c) on <var_c:Char> */
+var99 = (long)var_c;
+var97 = var99;
+goto RET_LABEL98;
+RET_LABEL98:(void)0;
 }
 }
 {
-var99 = core__flat___Int___core__abstract_text__Object__to_s(var96);
+var100 = core__flat___Int___core__abstract_text__Object__to_s(var97);
 }
 {
-((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var99); /* append on <var_res:Buffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var100); /* append on <var_res:Buffer>*/
 }
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
@@ -2956,27 +3128,27 @@ var99 = core__flat___Int___core__abstract_text__Object__to_s(var96);
 var_underscore = 0;
 }
 }
-BREAK_label72: (void)0;
+BREAK_label73: (void)0;
 {
-var100 = core___core__Int___Discrete__successor(var_i, 1l);
+var101 = core___core__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var100;
+var_i = var101;
 }
 BREAK_label: (void)0;
 if (var_underscore){
 {
-{ /* Inline kernel#Char#code_point ('_') on <'_':Char> */
-var103 = (long)'_';
-var101 = var103;
-goto RET_LABEL102;
-RET_LABEL102:(void)0;
+{ /* Inline kernel$Char$code_point ('_') on <'_':Char> */
+var104 = (long)'_';
+var102 = var104;
+goto RET_LABEL103;
+RET_LABEL103:(void)0;
 }
 }
 {
-var104 = core__flat___Int___core__abstract_text__Object__to_s(var101);
+var105 = core__flat___Int___core__abstract_text__Object__to_s(var102);
 }
 {
-((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var104); /* append on <var_res:Buffer>*/
+((void(*)(val* self, val* p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_res, var105); /* append on <var_res:Buffer>*/
 }
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, 'd'); /* add on <var_res:Buffer>*/
@@ -2984,280 +3156,554 @@ var104 = core__flat___Int___core__abstract_text__Object__to_s(var101);
 } else {
 }
 {
-var105 = ((val*(*)(val* self))(var_res->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_res); /* to_s on <var_res:Buffer>*/
+var106 = ((val*(*)(val* self))(var_res->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_res); /* to_s on <var_res:Buffer>*/
 }
-var = var105;
+var = var106;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#escape_to_c for (self: Text): String */
+/* method abstract_text$Text$escape_to_c for (self: Text): String */
 val* core___core__Text___escape_to_c(val* self) {
 val* var /* : String */;
+static val* varoncenew;
+static int varoncenew_guard;
 val* var1 /* : Buffer */;
 val* var2 /* : Buffer */;
+val* var3 /* : Buffer */;
 val* var_b /* var b: Buffer */;
 long var_i /* var i: Int */;
-long var3 /* : Int */;
+long var4 /* : Int */;
 long var_ /* var : Int */;
-short int var4 /* : Bool */;
-short int var6 /* : Bool */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var7 /* : Bool */;
-val* var8 /* : SequenceRead[Char] */;
-val* var9 /* : nullable Object */;
-uint32_t var10 /* : 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 var11 /* : Bool */;
-short int var13 /* : Bool */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
 static val* varonce;
-val* var14 /* : String */;
-char* var15 /* : NativeString */;
-val* var16 /* : String */;
-short int var17 /* : Bool */;
-short int var19 /* : Bool */;
-static val* varonce20;
-val* var21 /* : String */;
-char* var22 /* : NativeString */;
-val* var23 /* : String */;
+val* var15 /* : String */;
+char* var16 /* : CString */;
+val* var17 /* : String */;
+val* var18 /* : nullable Int */;
+val* var19 /* : nullable Int */;
+val* var20 /* : nullable Bool */;
+val* var21 /* : nullable Bool */;
+short int var22 /* : Bool */;
 short int var24 /* : Bool */;
-short int var26 /* : Bool */;
-static val* varonce27;
+static val* varonce25;
+val* var26 /* : String */;
+char* var27 /* : CString */;
 val* var28 /* : String */;
-char* var29 /* : NativeString */;
-val* var30 /* : String */;
-short int var31 /* : Bool */;
+val* var29 /* : nullable Int */;
+val* var30 /* : nullable Int */;
+val* var31 /* : nullable Bool */;
+val* var32 /* : nullable Bool */;
 short int var33 /* : Bool */;
-static val* varonce34;
-val* var35 /* : String */;
-char* var36 /* : NativeString */;
+short int var35 /* : Bool */;
+static val* varonce36;
 val* var37 /* : String */;
-short int var38 /* : Bool */;
-short int var40 /* : Bool */;
-static val* varonce41;
-val* var42 /* : String */;
-char* var43 /* : NativeString */;
-val* var44 /* : String */;
-long var45 /* : 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 */;
-long var55 /* : Int */;
-long var57 /* : Int */;
-val* var58 /* : String */;
-val* var_oct /* var oct: String */;
-long var59 /* : Int */;
-short int var60 /* : Bool */;
-short int var62 /* : Bool */;
-long var63 /* : Int */;
-short int var64 /* : Bool */;
+char* var38 /* : CString */;
+val* var39 /* : String */;
+val* var40 /* : nullable Int */;
+val* var41 /* : nullable Int */;
+val* var42 /* : nullable Bool */;
+val* var43 /* : nullable Bool */;
+short int var44 /* : Bool */;
+short int var46 /* : Bool */;
+static val* varonce47;
+val* var48 /* : String */;
+char* var49 /* : CString */;
+val* var50 /* : String */;
+val* var51 /* : nullable Int */;
+val* var52 /* : nullable Int */;
+val* var53 /* : nullable Bool */;
+val* var54 /* : nullable Bool */;
+short int var55 /* : Bool */;
+short int var57 /* : Bool */;
+static val* varonce58;
+val* var59 /* : String */;
+char* var60 /* : CString */;
+val* var61 /* : String */;
+val* var62 /* : nullable Int */;
+val* var63 /* : nullable Int */;
+val* var64 /* : nullable Bool */;
+val* var65 /* : nullable Bool */;
 short int var66 /* : Bool */;
-long var67 /* : Int */;
-val* var68 /* : String */;
-var1 = NEW_core__Buffer(&type_core__Buffer);
+short int var68 /* : Bool */;
+long var69 /* : Int */;
+short int var71 /* : Bool */;
+int cltype72;
+int idtype73;
+const char* var_class_name74;
+long var75 /* : Int */;
+long var_j /* var j: 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 /* : SequenceRead[Char] */;
+val* var85 /* : nullable Object */;
+uint32_t var86 /* : Char */;
+uint32_t var_next /* var next: Char */;
+short int var87 /* : Bool */;
+short int var88 /* : Bool */;
+short int var89 /* : Bool */;
+short int var90 /* : Bool */;
+short int var91 /* : Bool */;
+short int var92 /* : Bool */;
+short int var93 /* : Bool */;
+short int var94 /* : Bool */;
+short int var96 /* : Bool */;
+short int var_97 /* var : Bool */;
+short int var98 /* : Bool */;
+short int var100 /* : Bool */;
+short int var_101 /* var : Bool */;
+short int var102 /* : Bool */;
+short int var104 /* : Bool */;
+short int var_105 /* var : Bool */;
+short int var106 /* : Bool */;
+short int var108 /* : Bool */;
+short int var_109 /* var : Bool */;
+short int var110 /* : Bool */;
+short int var112 /* : Bool */;
+short int var_113 /* var : Bool */;
+short int var114 /* : Bool */;
+short int var116 /* : Bool */;
+short int var_117 /* var : Bool */;
+short int var118 /* : Bool */;
+short int var120 /* : Bool */;
+short int var_121 /* var : Bool */;
+short int var122 /* : Bool */;
+short int var124 /* : Bool */;
+long var125 /* : Int */;
+long var127 /* : Int */;
+short int var128 /* : Bool */;
+short int var130 /* : Bool */;
+int cltype131;
+int idtype132;
+const char* var_class_name133;
+short int var134 /* : Bool */;
+long var135 /* : Int */;
+long var137 /* : Int */;
+val* var138 /* : String */;
+val* var_oct /* var oct: String */;
+long var139 /* : Int */;
+short int var140 /* : Bool */;
+short int var142 /* : Bool */;
+long var143 /* : Int */;
+short int var144 /* : Bool */;
+short int var146 /* : Bool */;
+long var147 /* : Int */;
+val* var148 /* : String */;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
+} else {
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
+}
 {
-var2 = core__flat___Buffer___new(var1);
+var3 = core__flat___Buffer___new(var1);
 }
-var_b = var2;
+var_b = var3;
 var_i = 0l;
 {
-var3 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+var4 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var3;
+var_ = var4;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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)) {
+var7 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var7)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var7 = var_i < var_;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+var8 = var_i < var_;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-if (var4){
+if (var5){
 } else {
 goto BREAK_label;
 }
 {
-var8 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+var9 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var9 = ((val*(*)(val* self, long p0))((((long)var8&3)?class_info[((long)var8&3)]:var8->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var8, var_i); /* [] on <var8:SequenceRead[Char]>*/
+var10 = ((val*(*)(val* self, long p0))((((long)var9&3)?class_info[((long)var9&3)]:var9->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var9, var_i); /* [] on <var9:SequenceRead[Char]>*/
 }
-var10 = (uint32_t)((long)(var9)>>2);
-var_c = var10;
+var11 = (uint32_t)((long)(var10)>>2);
+var_c = var11;
 {
-{ /* Inline kernel#Char#== (var_c,'\n') on <var_c:Char> */
-var13 = var_c == '\n';
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\n') on <var_c:Char> */
+var14 = var_c == '\n';
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-if (var11){
+if (var12){
 if (likely(varonce!=NULL)) {
-var14 = varonce;
-} else {
-var15 = "\\n";
-var16 = core__flat___NativeString___to_s_full(var15, 2l, 2l);
-var14 = var16;
-varonce = var14;
+var15 = varonce;
+} else {
+var16 = "\\n";
+var18 = (val*)(2l<<2|1);
+var19 = (val*)(2l<<2|1);
+var20 = (val*)((long)(0)<<2|3);
+var21 = (val*)((long)(0)<<2|3);
+var17 = core__flat___CString___to_s_unsafe(var16, var18, var19, var20, var21);
+var15 = var17;
+varonce = var15;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var14); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var15); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'\t') on <var_c:Char> */
-var19 = var_c == '\t';
-var17 = var19;
-goto RET_LABEL18;
-RET_LABEL18:(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 (var17){
-if (likely(varonce20!=NULL)) {
-var21 = varonce20;
-} else {
-var22 = "\\t";
-var23 = core__flat___NativeString___to_s_full(var22, 2l, 2l);
-var21 = var23;
-varonce20 = var21;
+if (var22){
+if (likely(varonce25!=NULL)) {
+var26 = varonce25;
+} else {
+var27 = "\\t";
+var29 = (val*)(2l<<2|1);
+var30 = (val*)(2l<<2|1);
+var31 = (val*)((long)(0)<<2|3);
+var32 = (val*)((long)(0)<<2|3);
+var28 = core__flat___CString___to_s_unsafe(var27, var29, var30, var31, var32);
+var26 = var28;
+varonce25 = var26;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var21); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var26); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'\"') on <var_c:Char> */
-var26 = var_c == '\"';
-var24 = var26;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\"') on <var_c:Char> */
+var35 = var_c == '\"';
+var33 = var35;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
 }
 }
-if (var24){
-if (likely(varonce27!=NULL)) {
-var28 = varonce27;
+if (var33){
+if (likely(varonce36!=NULL)) {
+var37 = varonce36;
 } else {
-var29 = "\\\"";
-var30 = core__flat___NativeString___to_s_full(var29, 2l, 2l);
-var28 = var30;
-varonce27 = var28;
+var38 = "\\\"";
+var40 = (val*)(2l<<2|1);
+var41 = (val*)(2l<<2|1);
+var42 = (val*)((long)(0)<<2|3);
+var43 = (val*)((long)(0)<<2|3);
+var39 = core__flat___CString___to_s_unsafe(var38, var40, var41, var42, var43);
+var37 = var39;
+varonce36 = var37;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var28); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var37); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'\'') on <var_c:Char> */
-var33 = var_c == '\'';
-var31 = var33;
-goto RET_LABEL32;
-RET_LABEL32:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\'') on <var_c:Char> */
+var46 = var_c == '\'';
+var44 = var46;
+goto RET_LABEL45;
+RET_LABEL45:(void)0;
 }
 }
-if (var31){
-if (likely(varonce34!=NULL)) {
-var35 = varonce34;
+if (var44){
+if (likely(varonce47!=NULL)) {
+var48 = varonce47;
 } else {
-var36 = "\\\'";
-var37 = core__flat___NativeString___to_s_full(var36, 2l, 2l);
-var35 = var37;
-varonce34 = var35;
+var49 = "\\\'";
+var51 = (val*)(2l<<2|1);
+var52 = (val*)(2l<<2|1);
+var53 = (val*)((long)(0)<<2|3);
+var54 = (val*)((long)(0)<<2|3);
+var50 = core__flat___CString___to_s_unsafe(var49, var51, var52, var53, var54);
+var48 = var50;
+varonce47 = var48;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var35); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var48); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'\\') on <var_c:Char> */
-var40 = var_c == '\\';
-var38 = var40;
-goto RET_LABEL39;
-RET_LABEL39:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\\') on <var_c:Char> */
+var57 = var_c == '\\';
+var55 = var57;
+goto RET_LABEL56;
+RET_LABEL56:(void)0;
 }
 }
-if (var38){
-if (likely(varonce41!=NULL)) {
-var42 = varonce41;
+if (var55){
+if (likely(varonce58!=NULL)) {
+var59 = varonce58;
 } else {
-var43 = "\\\\";
-var44 = core__flat___NativeString___to_s_full(var43, 2l, 2l);
-var42 = var44;
-varonce41 = var42;
+var60 = "\\\\";
+var62 = (val*)(2l<<2|1);
+var63 = (val*)(2l<<2|1);
+var64 = (val*)((long)(0)<<2|3);
+var65 = (val*)((long)(0)<<2|3);
+var61 = core__flat___CString___to_s_unsafe(var60, var62, var63, var64, var65);
+var59 = var61;
+varonce58 = var59;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var42); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var59); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#code_point (var_c) on <var_c:Char> */
-var47 = (long)var_c;
-var45 = var47;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
+{ /* Inline kernel$Char$== (var_c,'?') on <var_c:Char> */
+var68 = var_c == '?';
+var66 = var68;
+goto RET_LABEL67;
+RET_LABEL67:(void)0;
+}
+}
+if (var66){
+{
+{ /* Inline kernel$Int$+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var71 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var71)) {
+var_class_name74 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name74);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var75 = var_i + 1l;
+var69 = var75;
+goto RET_LABEL70;
+RET_LABEL70:(void)0;
+}
+}
+var_j = var69;
+{
+var76 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+}
+{
+{ /* Inline kernel$Int$< (var_j,var76) on <var_j: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_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name82);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
+fatal_exit(1);
+}
+var83 = var_j < var76;
+var77 = var83;
+goto RET_LABEL78;
+RET_LABEL78:(void)0;
+}
+}
+if (var77){
+{
+var84 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+}
+{
+var85 = ((val*(*)(val* self, long p0))((((long)var84&3)?class_info[((long)var84&3)]:var84->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var84, var_j); /* [] on <var84:SequenceRead[Char]>*/
+}
+var86 = (uint32_t)((long)(var85)>>2);
+var_next = var86;
+{
+{ /* Inline kernel$Char$== (var_next,'!') on <var_next:Char> */
+var96 = var_next == '!';
+var94 = var96;
+goto RET_LABEL95;
+RET_LABEL95:(void)0;
+}
+}
+var_97 = var94;
+if (var94){
+var93 = var_97;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,'(') on <var_next:Char> */
+var100 = var_next == '(';
+var98 = var100;
+goto RET_LABEL99;
+RET_LABEL99:(void)0;
+}
+}
+var93 = var98;
+}
+var_101 = var93;
+if (var93){
+var92 = var_101;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,')') on <var_next:Char> */
+var104 = var_next == ')';
+var102 = var104;
+goto RET_LABEL103;
+RET_LABEL103:(void)0;
+}
+}
+var92 = var102;
+}
+var_105 = var92;
+if (var92){
+var91 = var_105;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,'-') on <var_next:Char> */
+var108 = var_next == '-';
+var106 = var108;
+goto RET_LABEL107;
+RET_LABEL107:(void)0;
+}
+}
+var91 = var106;
+}
+var_109 = var91;
+if (var91){
+var90 = var_109;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,'/') on <var_next:Char> */
+var112 = var_next == '/';
+var110 = var112;
+goto RET_LABEL111;
+RET_LABEL111:(void)0;
+}
+}
+var90 = var110;
+}
+var_113 = var90;
+if (var90){
+var89 = var_113;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,'<') on <var_next:Char> */
+var116 = var_next == '<';
+var114 = var116;
+goto RET_LABEL115;
+RET_LABEL115:(void)0;
+}
+}
+var89 = var114;
+}
+var_117 = var89;
+if (var89){
+var88 = var_117;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,'=') on <var_next:Char> */
+var120 = var_next == '=';
+var118 = var120;
+goto RET_LABEL119;
+RET_LABEL119:(void)0;
+}
+}
+var88 = var118;
+}
+var_121 = var88;
+if (var88){
+var87 = var_121;
+} else {
+{
+{ /* Inline kernel$Char$== (var_next,'>') on <var_next:Char> */
+var124 = var_next == '>';
+var122 = var124;
+goto RET_LABEL123;
+RET_LABEL123:(void)0;
+}
+}
+var87 = var122;
+}
+if (var87){
+{
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_b, '\\'); /* add on <var_b:Buffer>*/
+}
+} else {
+}
+} else {
+}
+{
+((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_b, '?'); /* add on <var_b:Buffer>*/
+}
+} else {
+{
+{ /* Inline kernel$Char$code_point (var_c) on <var_c:Char> */
+var127 = (long)var_c;
+var125 = var127;
+goto RET_LABEL126;
+RET_LABEL126:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var45,32l) on <var45:Int> */
+{ /* Inline kernel$Int$< (var125,32l) on <var125:Int> */
 /* Covariant cast for argument 0 (i) <32l:Int> isa OTHER */
 /* <32l:Int> isa OTHER */
-var50 = 1; /* easy <32l:Int> isa OTHER*/
-if (unlikely(!var50)) {
-var_class_name53 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+var130 = 1; /* easy <32l:Int> isa OTHER*/
+if (unlikely(!var130)) {
+var_class_name133 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name133);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var54 = var45 < 32l;
-var48 = var54;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var134 = var125 < 32l;
+var128 = var134;
+goto RET_LABEL129;
+RET_LABEL129:(void)0;
 }
 }
-if (var48){
+if (var128){
 {
 ((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_b, '\\'); /* add on <var_b:Buffer>*/
 }
 {
-{ /* Inline kernel#Char#code_point (var_c) on <var_c:Char> */
-var57 = (long)var_c;
-var55 = var57;
-goto RET_LABEL56;
-RET_LABEL56:(void)0;
+{ /* Inline kernel$Char$code_point (var_c) on <var_c:Char> */
+var137 = (long)var_c;
+var135 = var137;
+goto RET_LABEL136;
+RET_LABEL136:(void)0;
 }
 }
 {
-var58 = core__flat___Int___to_base(var55, 8l, 0);
+var138 = core__abstract_text___Int___to_base(var135, 8l);
 }
-var_oct = var58;
+var_oct = var138;
 {
-var59 = ((long(*)(val* self))(var_oct->class->vft[COLOR_core__abstract_text__Text__length]))(var_oct); /* length on <var_oct:String>*/
+var139 = ((long(*)(val* self))(var_oct->class->vft[COLOR_core__abstract_text__Text__length]))(var_oct); /* length on <var_oct:String>*/
 }
 {
-{ /* Inline kernel#Int#== (var59,1l) on <var59:Int> */
-var62 = var59 == 1l;
-var60 = var62;
-goto RET_LABEL61;
-RET_LABEL61:(void)0;
+{ /* Inline kernel$Int$== (var139,1l) on <var139:Int> */
+var142 = var139 == 1l;
+var140 = var142;
+goto RET_LABEL141;
+RET_LABEL141:(void)0;
 }
 }
-if (var60){
+if (var140){
 {
 ((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_b, '0'); /* add on <var_b:Buffer>*/
 }
@@ -3266,17 +3712,17 @@ if (var60){
 }
 } else {
 {
-var63 = ((long(*)(val* self))(var_oct->class->vft[COLOR_core__abstract_text__Text__length]))(var_oct); /* length on <var_oct:String>*/
+var143 = ((long(*)(val* self))(var_oct->class->vft[COLOR_core__abstract_text__Text__length]))(var_oct); /* length on <var_oct:String>*/
 }
 {
-{ /* Inline kernel#Int#== (var63,2l) on <var63:Int> */
-var66 = var63 == 2l;
-var64 = var66;
-goto RET_LABEL65;
-RET_LABEL65:(void)0;
+{ /* Inline kernel$Int$== (var143,2l) on <var143:Int> */
+var146 = var143 == 2l;
+var144 = var146;
+goto RET_LABEL145;
+RET_LABEL145:(void)0;
 }
 }
-if (var64){
+if (var144){
 {
 ((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_b, '0'); /* add on <var_b:Buffer>*/
 }
@@ -3296,134 +3742,156 @@ if (var64){
 }
 }
 }
+}
 {
-var67 = core___core__Int___Discrete__successor(var_i, 1l);
+var147 = core___core__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var67;
+var_i = var147;
 }
 BREAK_label: (void)0;
 {
-var68 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
+var148 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
 }
-var = var68;
+var = var148;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#escape_to_sh for (self: Text): String */
+/* method abstract_text$Text$escape_to_sh for (self: Text): String */
 val* core___core__Text___escape_to_sh(val* self) {
 val* var /* : String */;
+static val* varoncenew;
+static int varoncenew_guard;
 val* var1 /* : Buffer */;
 val* var2 /* : Buffer */;
+val* var3 /* : Buffer */;
 val* var_b /* var b: Buffer */;
-val* var3 /* : SequenceRead[Char] */;
-val* var4 /* : nullable Object */;
+val* var4 /* : SequenceRead[Char] */;
+val* var5 /* : nullable Object */;
 long var_i /* var i: Int */;
-long var5 /* : Int */;
+long var6 /* : Int */;
 long var_ /* var : Int */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
+short int var7 /* : Bool */;
+short int var9 /* : 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 */;
+short int var10 /* : Bool */;
+val* var11 /* : SequenceRead[Char] */;
+val* var12 /* : nullable Object */;
+uint32_t var13 /* : Char */;
 uint32_t var_c /* var c: Char */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
+short int var14 /* : Bool */;
+short int var16 /* : Bool */;
 static val* varonce;
-val* var16 /* : String */;
-char* var17 /* : NativeString */;
-val* var18 /* : String */;
-short int var19 /* : Bool */;
-short int var21 /* : Bool */;
-short int var22 /* : Bool */;
-long var23 /* : Int */;
-val* var24 /* : SequenceRead[Char] */;
-val* var25 /* : nullable Object */;
-val* var26 /* : String */;
-var1 = NEW_core__Buffer(&type_core__Buffer);
+val* var17 /* : String */;
+char* var18 /* : CString */;
+val* var19 /* : String */;
+val* var20 /* : nullable Int */;
+val* var21 /* : nullable Int */;
+val* var22 /* : nullable Bool */;
+val* var23 /* : nullable Bool */;
+short int var24 /* : Bool */;
+short int var26 /* : Bool */;
+short int var27 /* : Bool */;
+long var28 /* : Int */;
+val* var29 /* : SequenceRead[Char] */;
+val* var30 /* : nullable Object */;
+val* var31 /* : String */;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
+} else {
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
+}
 {
-var2 = core__flat___Buffer___new(var1);
+var3 = core__flat___Buffer___new(var1);
 }
-var_b = var2;
+var_b = var3;
 {
-var3 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Text__chars]))(var_b); /* chars on <var_b:Buffer>*/
+var4 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Text__chars]))(var_b); /* chars on <var_b:Buffer>*/
 }
 {
-var4 = (val*)((long)('\'')<<2|2);
-((void(*)(val* self, val* p0))((((long)var3&3)?class_info[((long)var3&3)]:var3->class)->vft[COLOR_core__abstract_collection__SimpleCollection__add]))(var3, var4); /* add on <var3:SequenceRead[Char](Sequence[Char])>*/
+var5 = (val*)((long)('\'')<<2|2);
+((void(*)(val* self, val* p0))((((long)var4&3)?class_info[((long)var4&3)]:var4->class)->vft[COLOR_core__abstract_collection__SimpleCollection__add]))(var4, var5); /* add on <var4:SequenceRead[Char](Sequence[Char])>*/
 }
 var_i = 0l;
 {
-var5 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+var6 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var5;
+var_ = var6;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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)) {
+var9 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var9)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var9 = var_i < var_;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
+var10 = var_i < var_;
+var7 = var10;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
 }
-if (var6){
+if (var7){
 } else {
 goto BREAK_label;
 }
 {
-var10 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+var11 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var11 = ((val*(*)(val* self, long p0))((((long)var10&3)?class_info[((long)var10&3)]:var10->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var10, var_i); /* [] on <var10:SequenceRead[Char]>*/
+var12 = ((val*(*)(val* self, long p0))((((long)var11&3)?class_info[((long)var11&3)]:var11->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var11, var_i); /* [] on <var11:SequenceRead[Char]>*/
 }
-var12 = (uint32_t)((long)(var11)>>2);
-var_c = var12;
+var13 = (uint32_t)((long)(var12)>>2);
+var_c = var13;
 {
-{ /* Inline kernel#Char#== (var_c,'\'') on <var_c:Char> */
-var15 = var_c == '\'';
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\'') on <var_c:Char> */
+var16 = var_c == '\'';
+var14 = var16;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
-if (var13){
+if (var14){
 if (likely(varonce!=NULL)) {
-var16 = varonce;
-} else {
-var17 = "\'\\\'\'";
-var18 = core__flat___NativeString___to_s_full(var17, 4l, 4l);
-var16 = var18;
-varonce = var16;
+var17 = varonce;
+} else {
+var18 = "\'\\\'\'";
+var20 = (val*)(4l<<2|1);
+var21 = (val*)(4l<<2|1);
+var22 = (val*)((long)(0)<<2|3);
+var23 = (val*)((long)(0)<<2|3);
+var19 = core__flat___CString___to_s_unsafe(var18, var20, var21, var22, var23);
+var17 = var19;
+varonce = var17;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var16); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var17); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* 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;
+{ /* Inline kernel$Char$!= (var_c,'\000') on <var_c:Char> */
+var26 = var_c == '\000';
+var27 = !var26;
+var24 = var27;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
 }
 }
-if (unlikely(!var19)) {
+if (unlikely(!var24)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Assert \'without_null_byte\' failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 669);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 705);
 fatal_exit(1);
 }
 {
@@ -3431,195 +3899,217 @@ fatal_exit(1);
 }
 }
 {
-var23 = core___core__Int___Discrete__successor(var_i, 1l);
+var28 = core___core__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var23;
+var_i = var28;
 }
 BREAK_label: (void)0;
 {
-var24 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Text__chars]))(var_b); /* chars on <var_b:Buffer>*/
+var29 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Text__chars]))(var_b); /* chars on <var_b:Buffer>*/
 }
 {
-var25 = (val*)((long)('\'')<<2|2);
-((void(*)(val* self, val* p0))((((long)var24&3)?class_info[((long)var24&3)]:var24->class)->vft[COLOR_core__abstract_collection__SimpleCollection__add]))(var24, var25); /* add on <var24:SequenceRead[Char](Sequence[Char])>*/
+var30 = (val*)((long)('\'')<<2|2);
+((void(*)(val* self, val* p0))((((long)var29&3)?class_info[((long)var29&3)]:var29->class)->vft[COLOR_core__abstract_collection__SimpleCollection__add]))(var29, var30); /* add on <var29:SequenceRead[Char](Sequence[Char])>*/
 }
 {
-var26 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
+var31 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
 }
-var = var26;
+var = var31;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#escape_to_mk for (self: Text): String */
+/* method abstract_text$Text$escape_to_mk for (self: Text): String */
 val* core___core__Text___escape_to_mk(val* self) {
 val* var /* : String */;
+static val* varoncenew;
+static int varoncenew_guard;
 val* var1 /* : Buffer */;
 val* var2 /* : Buffer */;
+val* var3 /* : Buffer */;
 val* var_b /* var b: Buffer */;
 long var_i /* var i: Int */;
-long var3 /* : Int */;
+long var4 /* : Int */;
 long var_ /* var : Int */;
-short int var4 /* : Bool */;
-short int var6 /* : Bool */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var7 /* : Bool */;
-val* var8 /* : SequenceRead[Char] */;
-val* var9 /* : nullable Object */;
-uint32_t var10 /* : 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 var11 /* : Bool */;
-short int var13 /* : Bool */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
 static val* varonce;
-val* var14 /* : String */;
-char* var15 /* : NativeString */;
-val* var16 /* : String */;
-short int var17 /* : Bool */;
-short int var18 /* : Bool */;
-short int var19 /* : Bool */;
-short int var21 /* : Bool */;
-short int var_22 /* var : Bool */;
+val* var15 /* : String */;
+char* var16 /* : CString */;
+val* var17 /* : String */;
+val* var18 /* : nullable Int */;
+val* var19 /* : nullable Int */;
+val* var20 /* : nullable Bool */;
+val* var21 /* : nullable Bool */;
+short int var22 /* : Bool */;
 short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-short int var_26 /* var : Bool */;
-short int var27 /* : Bool */;
-short int var29 /* : Bool */;
+short int var24 /* : Bool */;
+short int var26 /* : Bool */;
+short int var_27 /* var : Bool */;
+short int var28 /* : Bool */;
 short int var30 /* : Bool */;
-short int var31 /* : Bool */;
+short int var_31 /* var : Bool */;
 short int var32 /* : Bool */;
-short int var33 /* : Bool */;
-long var34 /* : Int */;
-long var36 /* : Int */;
+short int var34 /* : Bool */;
+short int var35 /* : Bool */;
+short int var36 /* : Bool */;
 short int var37 /* : Bool */;
-short int var39 /* : Bool */;
-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 */;
-short int var_48 /* var : Bool */;
-short int var49 /* : Bool */;
-short int var51 /* : Bool */;
-short int var_52 /* var : Bool */;
-short int var53 /* : Bool */;
-short int var55 /* : Bool */;
-short int var_56 /* var : Bool */;
-short int var57 /* : Bool */;
-short int var59 /* : Bool */;
-val* var61 /* : NativeArray[String] */;
-static val* varonce60;
-static val* varonce62;
-val* var63 /* : String */;
-char* var64 /* : NativeString */;
-val* var65 /* : String */;
-long var66 /* : Int */;
-long var68 /* : Int */;
-val* var69 /* : String */;
+short int var38 /* : Bool */;
+long var39 /* : Int */;
+long var41 /* : Int */;
+short int var42 /* : Bool */;
+short int var44 /* : Bool */;
+int cltype45;
+int idtype46;
+const char* var_class_name47;
+short int var48 /* : Bool */;
+short int var_49 /* var : Bool */;
+short int var50 /* : Bool */;
+short int var52 /* : Bool */;
+short int var_53 /* var : Bool */;
+short int var54 /* : Bool */;
+short int var56 /* : Bool */;
+short int var_57 /* var : Bool */;
+short int var58 /* : Bool */;
+short int var60 /* : Bool */;
+short int var_61 /* var : Bool */;
+short int var62 /* : Bool */;
+short int var64 /* : Bool */;
+val* var66 /* : NativeArray[String] */;
+static val* varonce65;
+static val* varonce67;
+val* var68 /* : String */;
+char* var69 /* : CString */;
 val* var70 /* : String */;
-long var71 /* : Int */;
-val* var72 /* : String */;
-var1 = NEW_core__Buffer(&type_core__Buffer);
+val* var71 /* : nullable Int */;
+val* var72 /* : nullable Int */;
+val* var73 /* : nullable Bool */;
+val* var74 /* : nullable Bool */;
+long var75 /* : Int */;
+long var77 /* : Int */;
+val* var78 /* : String */;
+val* var79 /* : String */;
+long var80 /* : Int */;
+val* var81 /* : String */;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
+} else {
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
+}
 {
-var2 = core__flat___Buffer___new(var1);
+var3 = core__flat___Buffer___new(var1);
 }
-var_b = var2;
+var_b = var3;
 var_i = 0l;
 {
-var3 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+var4 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var3;
+var_ = var4;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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)) {
+var7 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var7)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var7 = var_i < var_;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+var8 = var_i < var_;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
 }
-if (var4){
+if (var5){
 } else {
 goto BREAK_label;
 }
 {
-var8 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+var9 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var9 = ((val*(*)(val* self, long p0))((((long)var8&3)?class_info[((long)var8&3)]:var8->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var8, var_i); /* [] on <var8:SequenceRead[Char]>*/
+var10 = ((val*(*)(val* self, long p0))((((long)var9&3)?class_info[((long)var9&3)]:var9->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var9, var_i); /* [] on <var9:SequenceRead[Char]>*/
 }
-var10 = (uint32_t)((long)(var9)>>2);
-var_c = var10;
+var11 = (uint32_t)((long)(var10)>>2);
+var_c = var11;
 {
-{ /* Inline kernel#Char#== (var_c,'$') on <var_c:Char> */
-var13 = var_c == '$';
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+{ /* Inline kernel$Char$== (var_c,'$') on <var_c:Char> */
+var14 = var_c == '$';
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-if (var11){
+if (var12){
 if (likely(varonce!=NULL)) {
-var14 = varonce;
-} else {
-var15 = "$$";
-var16 = core__flat___NativeString___to_s_full(var15, 2l, 2l);
-var14 = var16;
-varonce = var14;
+var15 = varonce;
+} else {
+var16 = "$$";
+var18 = (val*)(2l<<2|1);
+var19 = (val*)(2l<<2|1);
+var20 = (val*)((long)(0)<<2|3);
+var21 = (val*)((long)(0)<<2|3);
+var17 = core__flat___CString___to_s_unsafe(var16, var18, var19, var20, var21);
+var15 = var17;
+varonce = var15;
 }
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var14); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var15); /* append on <var_b:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,':') on <var_c:Char> */
-var21 = var_c == ':';
-var19 = var21;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
+{ /* Inline kernel$Char$== (var_c,':') on <var_c:Char> */
+var26 = var_c == ':';
+var24 = var26;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
 }
 }
-var_22 = var19;
-if (var19){
-var18 = var_22;
+var_27 = var24;
+if (var24){
+var23 = var_27;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,' ') on <var_c:Char> */
-var25 = var_c == ' ';
-var23 = var25;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+{ /* Inline kernel$Char$== (var_c,' ') on <var_c:Char> */
+var30 = var_c == ' ';
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
-var18 = var23;
+var23 = var28;
 }
-var_26 = var18;
-if (var18){
-var17 = var_26;
+var_31 = var23;
+if (var23){
+var22 = var_31;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'#') on <var_c:Char> */
-var29 = var_c == '#';
-var27 = var29;
-goto RET_LABEL28;
-RET_LABEL28:(void)0;
+{ /* Inline kernel$Char$== (var_c,'#') on <var_c:Char> */
+var34 = var_c == '#';
+var32 = var34;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
 }
 }
-var17 = var27;
+var22 = var32;
 }
-if (var17){
+if (var22){
 {
 ((void(*)(val* self, uint32_t p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_b, '\\'); /* add on <var_b:Buffer>*/
 }
@@ -3628,120 +4118,124 @@ if (var17){
 }
 } else {
 {
-{ /* Inline kernel#Char#code_point (var_c) on <var_c:Char> */
-var36 = (long)var_c;
-var34 = var36;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
+{ /* Inline kernel$Char$code_point (var_c) on <var_c:Char> */
+var41 = (long)var_c;
+var39 = var41;
+goto RET_LABEL40;
+RET_LABEL40:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var34,32l) on <var34:Int> */
+{ /* Inline kernel$Int$< (var39,32l) on <var39: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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name42);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+var44 = 1; /* easy <32l:Int> isa OTHER*/
+if (unlikely(!var44)) {
+var_class_name47 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var43 = var34 < 32l;
-var37 = var43;
-goto RET_LABEL38;
-RET_LABEL38:(void)0;
+var48 = var39 < 32l;
+var42 = var48;
+goto RET_LABEL43;
+RET_LABEL43:(void)0;
 }
 }
-var_44 = var37;
-if (var37){
-var33 = var_44;
+var_49 = var42;
+if (var42){
+var38 = var_49;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,';') on <var_c:Char> */
-var47 = var_c == ';';
-var45 = var47;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
+{ /* Inline kernel$Char$== (var_c,';') on <var_c:Char> */
+var52 = var_c == ';';
+var50 = var52;
+goto RET_LABEL51;
+RET_LABEL51:(void)0;
 }
 }
-var33 = var45;
+var38 = var50;
 }
-var_48 = var33;
-if (var33){
-var32 = var_48;
+var_53 = var38;
+if (var38){
+var37 = var_53;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'|') on <var_c:Char> */
-var51 = var_c == '|';
-var49 = var51;
-goto RET_LABEL50;
-RET_LABEL50:(void)0;
+{ /* Inline kernel$Char$== (var_c,'|') on <var_c:Char> */
+var56 = var_c == '|';
+var54 = var56;
+goto RET_LABEL55;
+RET_LABEL55:(void)0;
 }
 }
-var32 = var49;
+var37 = var54;
 }
-var_52 = var32;
-if (var32){
-var31 = var_52;
+var_57 = var37;
+if (var37){
+var36 = var_57;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'\\') on <var_c:Char> */
-var55 = var_c == '\\';
-var53 = var55;
-goto RET_LABEL54;
-RET_LABEL54:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\\') on <var_c:Char> */
+var60 = var_c == '\\';
+var58 = var60;
+goto RET_LABEL59;
+RET_LABEL59:(void)0;
 }
 }
-var31 = var53;
+var36 = var58;
 }
-var_56 = var31;
-if (var31){
-var30 = var_56;
+var_61 = var36;
+if (var36){
+var35 = var_61;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'=') on <var_c:Char> */
-var59 = var_c == '=';
-var57 = var59;
-goto RET_LABEL58;
-RET_LABEL58:(void)0;
+{ /* Inline kernel$Char$== (var_c,'=') on <var_c:Char> */
+var64 = var_c == '=';
+var62 = var64;
+goto RET_LABEL63;
+RET_LABEL63:(void)0;
 }
 }
-var30 = var57;
+var35 = var62;
 }
-if (var30){
-if (unlikely(varonce60==NULL)) {
-var61 = NEW_core__NativeArray(2l, &type_core__NativeArray__core__String);
-if (likely(varonce62!=NULL)) {
-var63 = varonce62;
+if (var35){
+if (unlikely(varonce65==NULL)) {
+var66 = NEW_core__NativeArray((int)2l, &type_core__NativeArray__core__String);
+if (likely(varonce67!=NULL)) {
+var68 = varonce67;
 } else {
-var64 = "?";
-var65 = core__flat___NativeString___to_s_full(var64, 1l, 1l);
-var63 = var65;
-varonce62 = var63;
+var69 = "?";
+var71 = (val*)(1l<<2|1);
+var72 = (val*)(1l<<2|1);
+var73 = (val*)((long)(0)<<2|3);
+var74 = (val*)((long)(0)<<2|3);
+var70 = core__flat___CString___to_s_unsafe(var69, var71, var72, var73, var74);
+var68 = var70;
+varonce67 = var68;
 }
-((struct instance_core__NativeArray*)var61)->values[0]=var63;
+((struct instance_core__NativeArray*)var66)->values[0]=var68;
 } else {
-var61 = varonce60;
-varonce60 = NULL;
+var66 = varonce65;
+varonce65 = NULL;
 }
 {
-{ /* Inline kernel#Char#code_point (var_c) on <var_c:Char> */
-var68 = (long)var_c;
-var66 = var68;
-goto RET_LABEL67;
-RET_LABEL67:(void)0;
+{ /* Inline kernel$Char$code_point (var_c) on <var_c:Char> */
+var77 = (long)var_c;
+var75 = var77;
+goto RET_LABEL76;
+RET_LABEL76:(void)0;
 }
 }
 {
-var69 = core__flat___Int___to_base(var66, 16l, 0);
+var78 = core__abstract_text___Int___to_base(var75, 16l);
 }
-((struct instance_core__NativeArray*)var61)->values[1]=var69;
+((struct instance_core__NativeArray*)var66)->values[1]=var78;
 {
-var70 = ((val*(*)(val* self))(var61->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var61); /* native_to_s on <var61:NativeArray[String]>*/
+var79 = ((val*(*)(val* self))(var66->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var66); /* native_to_s on <var66:NativeArray[String]>*/
 }
-varonce60 = var61;
+varonce65 = var66;
 {
-((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var70); /* append on <var_b:Buffer>*/
+((void(*)(val* self, val* p0))(var_b->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_b, var79); /* append on <var_b:Buffer>*/
 }
 } else {
 {
@@ -3751,166 +4245,176 @@ varonce60 = var61;
 }
 }
 {
-var71 = core___core__Int___Discrete__successor(var_i, 1l);
+var80 = core___core__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var71;
+var_i = var80;
 }
 BREAK_label: (void)0;
 {
-var72 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
+var81 = ((val*(*)(val* self))(var_b->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:Buffer>*/
 }
-var = var72;
+var = var81;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#unescape_nit for (self: Text): String */
+/* method abstract_text$Text$unescape_nit for (self: Text): String */
 val* core___core__Text___unescape_nit(val* self) {
 val* var /* : String */;
+static val* varoncenew;
+static int varoncenew_guard;
 val* var1 /* : Buffer */;
-long var2 /* : Int */;
-val* var3 /* : Buffer */;
+val* var2 /* : Buffer */;
+long var3 /* : Int */;
+val* var4 /* : Buffer */;
 val* var_res /* var res: Buffer */;
 short int var_was_slash /* var was_slash: Bool */;
 long var_i /* var i: Int */;
-long var4 /* : Int */;
+long var5 /* : Int */;
 long var_ /* var : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var8 /* : Bool */;
-val* var9 /* : SequenceRead[Char] */;
-val* var10 /* : nullable Object */;
-uint32_t var11 /* : Char */;
+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 var12 /* : Bool */;
 short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-short int var17 /* : Bool */;
-short int var19 /* : Bool */;
+short int var14 /* : Bool */;
+short int var16 /* : Bool */;
+short int var18 /* : Bool */;
 short int var20 /* : Bool */;
-short int var22 /* : Bool */;
+short int var21 /* : Bool */;
 short int var23 /* : Bool */;
-short int var25 /* : Bool */;
+short int var24 /* : Bool */;
 short int var26 /* : Bool */;
-short int var28 /* : Bool */;
-long var29 /* : Int */;
-val* var30 /* : String */;
-var1 = NEW_core__Buffer(&type_core__Buffer);
+short int var27 /* : Bool */;
+short int var29 /* : Bool */;
+long var30 /* : Int */;
+val* var31 /* : String */;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
+} else {
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
+}
 {
-var2 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+var3 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
 {
-var3 = core__flat___Buffer___with_cap(var1, var2);
+var4 = core__flat___Buffer___with_cap(var1, var3);
 }
-var_res = var3;
+var_res = var4;
 var_was_slash = 0;
 var_i = 0l;
 {
-var4 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+var5 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
 }
-var_ = var4;
+var_ = var5;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* 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)) {
+var8 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var8)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var8 = var_i < var_;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var9 = var_i < var_;
+var6 = var9;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
 }
-if (var5){
+if (var6){
 } else {
 goto BREAK_label;
 }
 {
-var9 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
+var10 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Text>*/
 }
 {
-var10 = ((val*(*)(val* self, long p0))((((long)var9&3)?class_info[((long)var9&3)]:var9->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var9, var_i); /* [] on <var9:SequenceRead[Char]>*/
+var11 = ((val*(*)(val* self, long p0))((((long)var10&3)?class_info[((long)var10&3)]:var10->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var10, var_i); /* [] on <var10:SequenceRead[Char]>*/
 }
-var11 = (uint32_t)((long)(var10)>>2);
-var_c = var11;
-var12 = !var_was_slash;
-if (var12){
+var12 = (uint32_t)((long)(var11)>>2);
+var_c = var12;
+var13 = !var_was_slash;
+if (var13){
 {
-{ /* Inline kernel#Char#== (var_c,'\\') on <var_c:Char> */
-var15 = var_c == '\\';
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+{ /* Inline kernel$Char$== (var_c,'\\') on <var_c:Char> */
+var16 = var_c == '\\';
+var14 = var16;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
-if (var13){
+if (var14){
 var_was_slash = 1;
 } else {
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, var_c); /* add on <var_res:Buffer>*/
 }
 }
-goto BREAK_label16;
+goto BREAK_label17;
 } else {
 }
 var_was_slash = 0;
 {
-{ /* Inline kernel#Char#== (var_c,'n') on <var_c:Char> */
-var19 = var_c == 'n';
-var17 = var19;
-goto RET_LABEL18;
-RET_LABEL18:(void)0;
+{ /* Inline kernel$Char$== (var_c,'n') on <var_c:Char> */
+var20 = var_c == 'n';
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
 }
-if (var17){
+if (var18){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, '\n'); /* add on <var_res:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'r') on <var_c:Char> */
-var22 = var_c == 'r';
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+{ /* Inline kernel$Char$== (var_c,'r') on <var_c:Char> */
+var23 = var_c == 'r';
+var21 = var23;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
 }
-if (var20){
+if (var21){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, '\015'); /* add on <var_res:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'t') on <var_c:Char> */
-var25 = var_c == 't';
-var23 = var25;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+{ /* Inline kernel$Char$== (var_c,'t') on <var_c:Char> */
+var26 = var_c == 't';
+var24 = var26;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
 }
 }
-if (var23){
+if (var24){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, '\t'); /* add on <var_res:Buffer>*/
 }
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'0') on <var_c:Char> */
-var28 = var_c == '0';
-var26 = var28;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
+{ /* Inline kernel$Char$== (var_c,'0') on <var_c:Char> */
+var29 = var_c == '0';
+var27 = var29;
+goto RET_LABEL28;
+RET_LABEL28:(void)0;
 }
 }
-if (var26){
+if (var27){
 {
 ((void(*)(val* self, uint32_t p0))(var_res->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_res, '\000'); /* add on <var_res:Buffer>*/
 }
@@ -3922,22 +4426,22 @@ if (var26){
 }
 }
 }
-BREAK_label16: (void)0;
+BREAK_label17: (void)0;
 {
-var29 = core___core__Int___Discrete__successor(var_i, 1l);
+var30 = core___core__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var29;
+var_i = var30;
 }
 BREAK_label: (void)0;
 {
-var30 = ((val*(*)(val* self))(var_res->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_res); /* to_s on <var_res:Buffer>*/
+var31 = ((val*(*)(val* self))(var_res->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_res); /* to_s on <var_res:Buffer>*/
 }
-var = var30;
+var = var31;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#== for (self: Text, nullable Object): Bool */
+/* method abstract_text$Text$== for (self: Text, nullable Object): Bool */
 short int core___core__Text___core__kernel__Object___61d_61d(val* self, val* p0) {
 short int var /* : Bool */;
 val* var_o /* var o: nullable Object */;
@@ -3987,7 +4491,7 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Object#is_same_instance (self,var_o) on <self:Text> */
+{ /* Inline kernel$Object$is_same_instance (self,var_o) on <self:Text> */
 var7 = self == var_o;
 var5 = var7;
 goto RET_LABEL6;
@@ -4006,7 +4510,7 @@ var8 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var9 = ((long(*)(val* self))(var_o->class->vft[COLOR_core__abstract_text__Text__length]))(var_o); /* length on <var_o:nullable Object(Text)>*/
 }
 {
-{ /* Inline kernel#Int#!= (var8,var9) on <var8:Int> */
+{ /* Inline kernel$Int$!= (var8,var9) on <var8:Int> */
 var12 = var8 == var9;
 var13 = !var12;
 var10 = var13;
@@ -4033,7 +4537,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#< for (self: Text, Text): Bool */
+/* method abstract_text$Text$< for (self: Text, Text): Bool */
 short int core___core__Text___core__kernel__Comparable___60d(val* self, val* p0) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -4086,7 +4590,7 @@ 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_core__abstract_text, 918);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 955);
 fatal_exit(1);
 }
 var_other = p0;
@@ -4125,14 +4629,14 @@ var9 = ((val*(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_sel
 var10 = ((val*(*)(val* self))((((long)var_other_chars&3)?class_info[((long)var_other_chars&3)]:var_other_chars->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_other_chars); /* item on <var_other_chars:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Char#< (var9,var10) on <var9:nullable Object(Char)> */
+{ /* Inline kernel$Char$< (var9,var10) on <var9:nullable Object(Char)> */
 /* Covariant cast for argument 0 (i) <var10:nullable Object(Char)> isa OTHER */
 /* <var10:nullable Object(Char)> isa OTHER */
 var13 = 1; /* easy <var10:nullable Object(Char)> isa OTHER*/
 if (unlikely(!var13)) {
 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_core__kernel, 923);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 914);
 fatal_exit(1);
 }
 var17 = (uint32_t)((long)(var9)>>2);
@@ -4155,14 +4659,14 @@ var20 = ((val*(*)(val* self))((((long)var_self_chars&3)?class_info[((long)var_se
 var21 = ((val*(*)(val* self))((((long)var_other_chars&3)?class_info[((long)var_other_chars&3)]:var_other_chars->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_other_chars); /* item on <var_other_chars:IndexedIterator[Char]>*/
 }
 {
-{ /* Inline kernel#Char#> (var20,var21) on <var20:nullable Object(Char)> */
+{ /* 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_core__kernel, 925);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 916);
 fatal_exit(1);
 }
 var28 = (uint32_t)((long)(var20)>>2);
@@ -4202,7 +4706,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#hash_cache for (self: Text): nullable Int */
+/* method abstract_text$Text$hash_cache for (self: Text): nullable Int */
 val* core___core__Text___hash_cache(val* self) {
 val* var /* : nullable Int */;
 val* var1 /* : nullable Int */;
@@ -4211,12 +4715,12 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Text#hash_cache= for (self: Text, nullable Int) */
+/* method abstract_text$Text$hash_cache= for (self: Text, nullable Int) */
 void core___core__Text___hash_cache_61d(val* self, val* p0) {
 self->attrs[COLOR_core__abstract_text__Text___hash_cache].val = p0; /* _hash_cache on <self:Text> */
 RET_LABEL:;
 }
-/* method abstract_text#Text#hash for (self: Text): Int */
+/* method abstract_text$Text$hash for (self: Text): Int */
 long core___core__Text___core__kernel__Object__hash(val* self) {
 long var /* : Int */;
 val* var1 /* : nullable Int */;
@@ -4260,7 +4764,7 @@ val* var39 /* : nullable Int */;
 val* var41 /* : nullable Int */;
 long var42 /* : Int */;
 {
-{ /* Inline abstract_text#Text#hash_cache (self) on <self:Text> */
+{ /* Inline abstract_text$Text$hash_cache (self) on <self:Text> */
 var3 = self->attrs[COLOR_core__abstract_text__Text___hash_cache].val; /* _hash_cache on <self:Text> */
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -4272,7 +4776,7 @@ var4 = 1; /* is null */
 var4 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Int#== (var1,((val*)NULL)) on <var1:nullable Int> */
+{ /* 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;
@@ -4289,14 +4793,14 @@ var8 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__l
 var_ = var8;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
 var11 = 1; /* easy <var_:Int> isa OTHER*/
 if (unlikely(!var11)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var12 = var_i < var_;
@@ -4318,7 +4822,7 @@ var14 = ((val*(*)(val* self, long p0))((((long)var13&3)?class_info[((long)var13&
 var15 = (uint32_t)((long)(var14)>>2);
 var_char = var15;
 {
-{ /* Inline kernel#Int#<< (var_h,5l) on <var_h:Int> */
+{ /* Inline kernel$Int$<< (var_h,5l) on <var_h:Int> */
 var18 = var_h << 5l;
 var16 = var18;
 goto RET_LABEL17;
@@ -4326,14 +4830,14 @@ RET_LABEL17:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var16,var_h) on <var16: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 */
 var21 = 1; /* easy <var_h:Int> isa OTHER*/
 if (unlikely(!var21)) {
 var_class_name24 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var25 = var16 + var_h;
@@ -4343,7 +4847,7 @@ RET_LABEL20:(void)0;
 }
 }
 {
-{ /* Inline kernel#Char#code_point (var_char) on <var_char:Char> */
+{ /* Inline kernel$Char$code_point (var_char) on <var_char:Char> */
 var28 = (long)var_char;
 var26 = var28;
 goto RET_LABEL27;
@@ -4351,14 +4855,14 @@ RET_LABEL27:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var19,var26) on <var19:Int> */
+{ /* 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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var35 = var19 + var26;
@@ -4375,7 +4879,7 @@ var_i = var36;
 }
 BREAK_label: (void)0;
 {
-{ /* Inline abstract_text#Text#hash_cache= (self,var_h) on <self:Text> */
+{ /* Inline abstract_text$Text$hash_cache= (self,var_h) on <self:Text> */
 var38 = (val*)(var_h<<2|1);
 self->attrs[COLOR_core__abstract_text__Text___hash_cache].val = var38; /* _hash_cache on <self:Text> */
 RET_LABEL37:(void)0;
@@ -4384,15 +4888,18 @@ RET_LABEL37:(void)0;
 } else {
 }
 {
-{ /* Inline abstract_text#Text#hash_cache (self) on <self:Text> */
+{ /* Inline abstract_text$Text$hash_cache (self) on <self:Text> */
 var41 = self->attrs[COLOR_core__abstract_text__Text___hash_cache].val; /* _hash_cache on <self:Text> */
 var39 = var41;
 RET_LABEL40:(void)0;
 }
 }
 if (unlikely(var39 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 964);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1001);
 fatal_exit(1);
 }
 var42 = (long)(var39)>>2;
@@ -4401,85 +4908,558 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#FlatText#items for (self: FlatText): NativeString */
-char* core___core__FlatText___items(val* self) {
-char* var /* : NativeString */;
-char* var1 /* : NativeString */;
-var1 = self->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <self:FlatText> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#FlatText#length for (self: FlatText): Int */
-long core___core__FlatText___Text__length(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <self:FlatText> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#FlatText#bytelen for (self: FlatText): Int */
-long core___core__FlatText___Text__bytelen(val* self) {
+/* method abstract_text$Text$levenshtein_distance for (self: Text, String): Int */
+long core___core__Text___levenshtein_distance(val* self, val* p0) {
 long var /* : Int */;
+val* var_other /* var other: String */;
 long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__abstract_text__FlatText___bytelen].l; /* _bytelen on <self:FlatText> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#StringCharView#target for (self: StringCharView): Text */
-val* core__abstract_text___core__abstract_text__StringCharView___target(val* self) {
-val* var /* : Text */;
-val* var1 /* : Text */;
-var1 = self->attrs[COLOR_core__abstract_text__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_core__abstract_text, 1138);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#StringCharView#target= for (self: StringCharView, Text) */
-void core__abstract_text___core__abstract_text__StringCharView___target_61d(val* self, val* p0) {
-short int var /* : Bool */;
+long var_slen /* var slen: Int */;
+long var2 /* : Int */;
+long var_olen /* var olen: Int */;
+short int var3 /* : Bool */;
+short int var5 /* : Bool */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+val* var10 /* : Array[Int] */;
+long var11 /* : Int */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
-const struct type* type_struct;
 const char* var_class_name;
-/* Covariant cast for argument 0 (target) <p0:Text> isa SELFTYPE */
-/* <p0:Text> isa SELFTYPE */
-type_struct = self->type->resolution_table->types[COLOR_core__abstract_text__StringCharView__SELFTYPE];
-cltype = type_struct->color;
-idtype = type_struct->id;
-if(cltype >= p0->type->table_size) {
-var = 0;
-} else {
-var = p0->type->type_table[cltype] == idtype;
-}
+long var14 /* : Int */;
+val* var_v0 /* var v0: Array[Int] */;
+val* var15 /* : Array[Int] */;
+long var16 /* : Int */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+const char* var_class_name21;
+long var22 /* : Int */;
+val* var_v1 /* var v1: Array[Int] */;
+long var_j /* var j: Int */;
+long var_ /* var : Int */;
+short int var23 /* : Bool */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+const char* var_class_name28;
+short int var29 /* : Bool */;
+val* var30 /* : nullable Object */;
+long var31 /* : Int */;
+long var_i /* var i: Int */;
+long var_32 /* var : Int */;
+short int var33 /* : Bool */;
+short int var35 /* : Bool */;
+int cltype36;
+int idtype37;
+const char* var_class_name38;
+short int var39 /* : Bool */;
+long var41 /* : Int */;
+short int var43 /* : Bool */;
+int cltype44;
+int idtype45;
+const char* var_class_name46;
+long var47 /* : Int */;
+val* var48 /* : nullable Object */;
+long var_j49 /* var j: Int */;
+long var_50 /* var : Int */;
+short int var51 /* : Bool */;
+short int var53 /* : Bool */;
+int cltype54;
+int idtype55;
+const char* var_class_name56;
+short int var57 /* : Bool */;
+val* var59 /* : nullable Object */;
+long var60 /* : Int */;
+short int var62 /* : Bool */;
+int cltype63;
+int idtype64;
+const char* var_class_name65;
+long var66 /* : Int */;
+long var67 /* : Int */;
+long var_cost1 /* var cost1: Int */;
+long var68 /* : Int */;
+short int var70 /* : Bool */;
+int cltype71;
+int idtype72;
+const char* var_class_name73;
+long var74 /* : Int */;
+val* var75 /* : nullable Object */;
+long var76 /* : Int */;
+short int var78 /* : Bool */;
+int cltype79;
+int idtype80;
+const char* var_class_name81;
+long var82 /* : Int */;
+long var83 /* : Int */;
+long var_cost2 /* var cost2: Int */;
+val* var84 /* : nullable Object */;
+long var85 /* : Int */;
+long var_cost3 /* var cost3: Int */;
+uint32_t var86 /* : Char */;
+uint32_t var87 /* : Char */;
+short int var88 /* : Bool */;
+short int var90 /* : Bool */;
+short int var91 /* : Bool */;
+long var92 /* : Int */;
+short int var94 /* : Bool */;
+int cltype95;
+int idtype96;
+const char* var_class_name97;
+long var98 /* : Int */;
+long var99 /* : Int */;
+short int var101 /* : Bool */;
+int cltype102;
+int idtype103;
+const char* var_class_name104;
+long var105 /* : Int */;
+long var106 /* : Int */;
+long var107 /* : Int */;
+val* var108 /* : nullable Object */;
+long var109 /* : Int */;
+val* var_tmp /* var tmp: Array[Int] */;
+long var110 /* : Int */;
+val* var111 /* : nullable Object */;
+long var112 /* : Int */;
+var_other = p0;
+{
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Text>*/
+}
+var_slen = var1;
+{
+var2 = ((long(*)(val* self))(var_other->class->vft[COLOR_core__abstract_text__Text__length]))(var_other); /* length on <var_other:String>*/
+}
+var_olen = var2;
+{
+{ /* Inline kernel$Int$== (var_slen,0l) on <var_slen:Int> */
+var5 = var_slen == 0l;
+var3 = var5;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
+}
+}
+if (var3){
+var = var_olen;
+goto RET_LABEL;
+} else {
+}
+{
+{ /* Inline kernel$Int$== (var_olen,0l) on <var_olen:Int> */
+var8 = var_olen == 0l;
+var6 = var8;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
+}
+}
+if (var6){
+var = var_slen;
+goto RET_LABEL;
+} else {
+}
+{
+var9 = ((short int(*)(val* self, val* p0))(self->class->vft[COLOR_core__kernel__Object___61d_61d]))(self, var_other); /* == on <self:Text>*/
+}
+if (var9){
+var = 0l;
+goto RET_LABEL;
+} else {
+}
+var10 = NEW_core__Array(&type_core__Array__core__Int);
+{
+{ /* Inline kernel$Int$+ (var_olen,1l) on <var_olen:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var13 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var13)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var14 = var_olen + 1l;
+var11 = var14;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
+}
+}
+{
+core___core__Array___with_capacity(var10, var11); /* Direct call array$Array$with_capacity on <var10:Array[Int]>*/
+}
+var_v0 = var10;
+var15 = NEW_core__Array(&type_core__Array__core__Int);
+{
+{ /* Inline kernel$Int$+ (var_olen,1l) on <var_olen:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var18 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var18)) {
+var_class_name21 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var22 = var_olen + 1l;
+var16 = var22;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
+}
+}
+{
+core___core__Array___with_capacity(var15, var16); /* Direct call array$Array$with_capacity on <var15:Array[Int]>*/
+}
+var_v1 = var15;
+var_j = 0l;
+var_ = var_olen;
+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 */
+var25 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var25)) {
+var_class_name28 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
+fatal_exit(1);
+}
+var29 = var_j <= var_;
+var23 = var29;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
+}
+}
+if (var23){
+} else {
+goto BREAK_label;
+}
+{
+var30 = (val*)(var_j<<2|1);
+core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_v0, var_j, var30); /* Direct call array$Array$[]= on <var_v0:Array[Int]>*/
+}
+{
+var31 = core___core__Int___Discrete__successor(var_j, 1l);
+}
+var_j = var31;
+}
+BREAK_label: (void)0;
+var_i = 0l;
+var_32 = var_slen;
+for(;;) {
+{
+{ /* Inline kernel$Int$< (var_i,var_32) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var_32:Int> isa OTHER */
+/* <var_32:Int> isa OTHER */
+var35 = 1; /* easy <var_32:Int> isa OTHER*/
+if (unlikely(!var35)) {
+var_class_name38 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name38);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
+fatal_exit(1);
+}
+var39 = var_i < var_32;
+var33 = var39;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
+}
+}
+if (var33){
+} else {
+goto BREAK_label40;
+}
+{
+{ /* Inline kernel$Int$+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var43 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var43)) {
+var_class_name46 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name46);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var47 = var_i + 1l;
+var41 = var47;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
+}
+}
+{
+var48 = (val*)(var41<<2|1);
+core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_v1, 0l, var48); /* Direct call array$Array$[]= on <var_v1:Array[Int]>*/
+}
+var_j49 = 0l;
+var_50 = var_olen;
+for(;;) {
+{
+{ /* Inline kernel$Int$< (var_j49,var_50) on <var_j49:Int> */
+/* Covariant cast for argument 0 (i) <var_50:Int> isa OTHER */
+/* <var_50:Int> isa OTHER */
+var53 = 1; /* easy <var_50:Int> isa OTHER*/
+if (unlikely(!var53)) {
+var_class_name56 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name56);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
+fatal_exit(1);
+}
+var57 = var_j49 < var_50;
+var51 = var57;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
+}
+}
+if (var51){
+} else {
+goto BREAK_label58;
+}
+{
+var59 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_v1, var_j49);
+}
+{
+{ /* Inline kernel$Int$+ (var59,1l) on <var59:nullable Object(Int)> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var62 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var62)) {
+var_class_name65 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name65);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var66 = (long)(var59)>>2;
+var67 = var66 + 1l;
+var60 = var67;
+goto RET_LABEL61;
+RET_LABEL61:(void)0;
+}
+}
+var_cost1 = var60;
+{
+{ /* Inline kernel$Int$+ (var_j49,1l) on <var_j49:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var70 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var70)) {
+var_class_name73 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name73);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var74 = var_j49 + 1l;
+var68 = var74;
+goto RET_LABEL69;
+RET_LABEL69:(void)0;
+}
+}
+{
+var75 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_v0, var68);
+}
+{
+{ /* Inline kernel$Int$+ (var75,1l) on <var75:nullable Object(Int)> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var78 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var78)) {
+var_class_name81 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name81);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var82 = (long)(var75)>>2;
+var83 = var82 + 1l;
+var76 = var83;
+goto RET_LABEL77;
+RET_LABEL77:(void)0;
+}
+}
+var_cost2 = var76;
+{
+var84 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_v0, var_j49);
+}
+var85 = (long)(var84)>>2;
+var_cost3 = var85;
+{
+var86 = ((uint32_t(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(self, var_i); /* [] on <self:Text>*/
+}
+{
+var87 = ((uint32_t(*)(val* self, long p0))(var_other->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(var_other, var_j49); /* [] on <var_other:String>*/
+}
+{
+{ /* Inline kernel$Char$!= (var86,var87) on <var86:Char> */
+var90 = var86 == var87;
+var91 = !var90;
+var88 = var91;
+goto RET_LABEL89;
+RET_LABEL89:(void)0;
+}
+}
+if (var88){
+{
+{ /* Inline kernel$Int$+ (var_cost3,1l) on <var_cost3:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var94 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var94)) {
+var_class_name97 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name97);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var98 = var_cost3 + 1l;
+var92 = var98;
+goto RET_LABEL93;
+RET_LABEL93:(void)0;
+}
+}
+var_cost3 = var92;
+} else {
+}
+{
+{ /* Inline kernel$Int$+ (var_j49,1l) on <var_j49:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var101 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var101)) {
+var_class_name104 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name104);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var105 = var_j49 + 1l;
+var99 = var105;
+goto RET_LABEL100;
+RET_LABEL100:(void)0;
+}
+}
+{
+var106 = core___core__Int___Comparable__min(var_cost1, var_cost2);
+}
+{
+var107 = core___core__Int___Comparable__min(var106, var_cost3);
+}
+{
+var108 = (val*)(var107<<2|1);
+core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_v1, var99, var108); /* Direct call array$Array$[]= on <var_v1:Array[Int]>*/
+}
+{
+var109 = core___core__Int___Discrete__successor(var_j49, 1l);
+}
+var_j49 = var109;
+}
+BREAK_label58: (void)0;
+var_tmp = var_v1;
+var_v1 = var_v0;
+var_v0 = var_tmp;
+{
+var110 = core___core__Int___Discrete__successor(var_i, 1l);
+}
+var_i = var110;
+}
+BREAK_label40: (void)0;
+{
+var111 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_v0, var_olen);
+}
+var112 = (long)(var111)>>2;
+var = var112;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$FlatText$items for (self: FlatText): CString */
+char* core___core__FlatText___items(val* self) {
+char* var /* : CString */;
+char* var1 /* : CString */;
+var1 = self->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <self:FlatText> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$FlatText$length for (self: FlatText): Int */
+long core___core__FlatText___Text__length(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+var1 = self->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <self:FlatText> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$FlatText$length= for (self: FlatText, Int) */
+void core___core__FlatText___length_61d(val* self, long p0) {
+self->attrs[COLOR_core__abstract_text__FlatText___length].l = p0; /* _length on <self:FlatText> */
+RET_LABEL:;
+}
+/* method abstract_text$FlatText$byte_length for (self: FlatText): Int */
+long core___core__FlatText___Text__byte_length(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+var1 = self->attrs[COLOR_core__abstract_text__FlatText___byte_length].l; /* _byte_length on <self:FlatText> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$FlatText$byte_length= for (self: FlatText, Int) */
+void core___core__FlatText___byte_length_61d(val* self, long p0) {
+self->attrs[COLOR_core__abstract_text__FlatText___byte_length].l = p0; /* _byte_length on <self:FlatText> */
+RET_LABEL:;
+}
+/* method abstract_text$StringCharView$target for (self: StringCharView): Text */
+val* core__abstract_text___core__abstract_text__StringCharView___target(val* self) {
+val* var /* : Text */;
+val* var1 /* : Text */;
+var1 = self->attrs[COLOR_core__abstract_text__StringCharView___target].val; /* _target on <self:StringCharView> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
+fatal_exit(1);
+}
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$StringCharView$target= for (self: StringCharView, Text) */
+void core__abstract_text___core__abstract_text__StringCharView___target_61d(val* self, val* p0) {
+short int var /* : Bool */;
+int cltype;
+int idtype;
+const struct type* type_struct;
+const char* var_class_name;
+/* Covariant cast for argument 0 (target) <p0:Text> isa SELFTYPE */
+/* <p0:Text> isa SELFTYPE */
+type_struct = self->type->resolution_table->types[COLOR_core__abstract_text__StringCharView__SELFTYPE];
+cltype = type_struct->color;
+idtype = type_struct->id;
+if(cltype >= p0->type->table_size) {
+var = 0;
+} else {
+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_core__abstract_text, 1138);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
 fatal_exit(1);
 }
 self->attrs[COLOR_core__abstract_text__StringCharView___target].val = p0; /* _target on <self:StringCharView> */
 RET_LABEL:;
 }
-/* method abstract_text#StringCharView#is_empty for (self: StringCharView): Bool */
+/* method abstract_text$StringCharView$is_empty for (self: StringCharView): Bool */
 short int core__abstract_text___core__abstract_text__StringCharView___core__abstract_collection__Collection__is_empty(val* self) {
 short int var /* : Bool */;
 val* var1 /* : Text */;
 val* var3 /* : Text */;
 short int var4 /* : Bool */;
 {
-{ /* Inline abstract_text#StringCharView#target (self) on <self:StringCharView> */
+{ /* Inline abstract_text$StringCharView$target (self) on <self:StringCharView> */
 var3 = self->attrs[COLOR_core__abstract_text__StringCharView___target].val; /* _target on <self:StringCharView> */
 if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1138);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
 fatal_exit(1);
 }
 var1 = var3;
@@ -4494,18 +5474,21 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringCharView#length for (self: StringCharView): Int */
+/* method abstract_text$StringCharView$length for (self: StringCharView): Int */
 long core__abstract_text___core__abstract_text__StringCharView___core__abstract_collection__Collection__length(val* self) {
 long var /* : Int */;
 val* var1 /* : Text */;
 val* var3 /* : Text */;
 long var4 /* : Int */;
 {
-{ /* Inline abstract_text#StringCharView#target (self) on <self:StringCharView> */
+{ /* Inline abstract_text$StringCharView$target (self) on <self:StringCharView> */
 var3 = self->attrs[COLOR_core__abstract_text__StringCharView___target].val; /* _target on <self:StringCharView> */
 if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1138);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
 fatal_exit(1);
 }
 var1 = var3;
@@ -4520,7 +5503,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringCharView#iterator for (self: StringCharView): IndexedIterator[Char] */
+/* method abstract_text$StringCharView$iterator for (self: StringCharView): IndexedIterator[Char] */
 val* core__abstract_text___core__abstract_text__StringCharView___core__abstract_collection__Collection__iterator(val* self) {
 val* var /* : IndexedIterator[Char] */;
 val* var1 /* : IndexedIterator[nullable Object] */;
@@ -4532,7 +5515,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringCharView#reverse_iterator for (self: StringCharView): IndexedIterator[Char] */
+/* method abstract_text$StringCharView$reverse_iterator for (self: StringCharView): IndexedIterator[Char] */
 val* core__abstract_text___core__abstract_text__StringCharView___core__abstract_collection__SequenceRead__reverse_iterator(val* self) {
 val* var /* : IndexedIterator[Char] */;
 long var1 /* : Int */;
@@ -4547,14 +5530,14 @@ val* var6 /* : IndexedIterator[nullable Object] */;
 var1 = core__abstract_text___core__abstract_text__StringCharView___core__abstract_collection__Collection__length(self);
 }
 {
-{ /* Inline kernel#Int#- (var1,1l) on <var1:Int> */
+{ /* Inline kernel$Int$- (var1,1l) on <var1: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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var5 = var1 - 1l;
@@ -4564,538 +5547,667 @@ RET_LABEL3:(void)0;
 }
 }
 {
-var6 = ((val*(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_collection__SequenceRead__reverse_iterator_from]))(self, var2); /* reverse_iterator_from on <self:StringCharView>*/
+var6 = ((val*(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_collection__SequenceRead__reverse_iterator_from]))(self, var2); /* reverse_iterator_from on <self:StringCharView>*/
+}
+var = var6;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$StringCharView$init for (self: StringCharView) */
+void core__abstract_text___core__abstract_text__StringCharView___core__kernel__Object__init(val* self) {
+{
+((void(*)(val* self))(self->class->vft[COLOR_core__abstract_text___core__abstract_text__StringCharView___core__kernel__Object__init]))(self); /* init on <self:StringCharView>*/
+}
+RET_LABEL:;
+}
+/* method abstract_text$String$to_s for (self: String): String */
+val* core___core__String___Object__to_s(val* self) {
+val* var /* : String */;
+var = self;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$String$clone for (self: String): String */
+val* core___core__String___core__kernel__Cloneable__clone(val* self) {
+val* var /* : String */;
+short int var1 /* : Bool */;
+int cltype;
+int idtype;
+const struct type* type_struct;
+const char* var_class_name;
+/* <self:String> isa SELF */
+type_struct = self->type->resolution_table->types[COLOR_core__kernel__Object__SELF];
+cltype = type_struct->color;
+idtype = type_struct->id;
+if(cltype >= self->type->table_size) {
+var1 = 0;
+} else {
+var1 = self->type->type_table[cltype] == idtype;
+}
+if (unlikely(!var1)) {
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELF", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1361);
+fatal_exit(1);
+}
+var = self;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$String$to_snake_case for (self: String): String */
+val* core___core__String___Text__to_snake_case(val* self) {
+val* var /* : String */;
+short int var1 /* : Bool */;
+static val* varoncenew;
+static int varoncenew_guard;
+val* var2 /* : Buffer */;
+val* var3 /* : Buffer */;
+long var4 /* : Int */;
+val* var5 /* : Buffer */;
+val* var_new_str /* var new_str: Buffer */;
+val* var6 /* : String */;
+{
+var1 = core___core__Text___is_lower(self);
+}
+if (var1){
+var = self;
+goto RET_LABEL;
+} else {
+}
+if (likely(varoncenew_guard)) {
+var2 = varoncenew;
+} else {
+var3 = NEW_core__Buffer(&type_core__Buffer);
+var2 = var3;
+varoncenew = var2;
+varoncenew_guard = 1;
+}
+{
+var4 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:String>*/
+}
+{
+var5 = core__flat___Buffer___with_cap(var2, var4);
+}
+var_new_str = var5;
+{
+((void(*)(val* self, val* p0))(var_new_str->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_new_str, self); /* append on <var_new_str:Buffer>*/
+}
+{
+core___core__Buffer___snake_case(var_new_str); /* Direct call abstract_text$Buffer$snake_case on <var_new_str:Buffer>*/
+}
+{
+var6 = ((val*(*)(val* self))(var_new_str->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_new_str); /* to_s on <var_new_str:Buffer>*/
+}
+var = var6;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Buffer$written for (self: Buffer): Bool */
+short int core___core__Buffer___written(val* self) {
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+var1 = self->attrs[COLOR_core__abstract_text__Buffer___written].s; /* _written on <self:Buffer> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method abstract_text$Buffer$written= for (self: Buffer, Bool) */
+void core___core__Buffer___written_61d(val* self, short int p0) {
+self->attrs[COLOR_core__abstract_text__Buffer___written].s = p0; /* _written on <self:Buffer> */
+RET_LABEL:;
+}
+/* method abstract_text$Buffer$[]= for (self: Buffer, Int, Char) */
+void core___core__Buffer____91d_93d_61d(val* self, long p0, uint32_t p1) {
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "[]=", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1411);
+fatal_exit(1);
+RET_LABEL:;
+}
+/* method abstract_text$Buffer$clone for (self: Buffer): Buffer */
+val* core___core__Buffer___core__kernel__Cloneable__clone(val* self) {
+val* var /* : Buffer */;
+static val* varoncenew;
+static int varoncenew_guard;
+val* var1 /* : Buffer */;
+val* var2 /* : Buffer */;
+long var3 /* : Int */;
+val* var4 /* : Buffer */;
+val* var_cln /* var cln: Buffer */;
+short int var5 /* : Bool */;
+int cltype;
+int idtype;
+const struct type* type_struct;
+const char* var_class_name;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
+} else {
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
+}
+{
+var3 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__byte_length]))(self); /* byte_length on <self:Buffer>*/
+}
+{
+var4 = core__flat___Buffer___with_cap(var1, var3);
+}
+var_cln = var4;
+{
+((void(*)(val* self, val* p0))(var_cln->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_cln, self); /* append on <var_cln:Buffer>*/
 }
-var = var6;
+/* <var_cln:Buffer> isa SELF */
+type_struct = self->type->resolution_table->types[COLOR_core__kernel__Object__SELF];
+cltype = type_struct->color;
+idtype = type_struct->id;
+if(cltype >= var_cln->type->table_size) {
+var5 = 0;
+} else {
+var5 = var_cln->type->type_table[cltype] == idtype;
+}
+if (unlikely(!var5)) {
+var_class_name = var_cln == NULL ? "null" : var_cln->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "SELF", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1427);
+fatal_exit(1);
+}
+var = var_cln;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringCharView#init for (self: StringCharView) */
-void core__abstract_text___core__abstract_text__StringCharView___core__kernel__Object__init(val* self) {
-{
-((void(*)(val* self))(self->class->vft[COLOR_core__abstract_text___core__abstract_text__StringCharView___core__kernel__Object__init]))(self); /* init on <self:StringCharView>*/
+/* method abstract_text$Buffer$add for (self: Buffer, Char) */
+void core___core__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_core__abstract_text, 1430);
+fatal_exit(1);
+RET_LABEL:;
 }
+/* method abstract_text$Buffer$enlarge for (self: Buffer, Int) */
+void core___core__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_core__abstract_text, 1444);
+fatal_exit(1);
 RET_LABEL:;
 }
-/* method abstract_text#StringByteView#target for (self: StringByteView): Text */
-val* core__abstract_text___core__abstract_text__StringByteView___target(val* self) {
-val* var /* : Text */;
-val* var1 /* : Text */;
-var1 = self->attrs[COLOR_core__abstract_text__StringByteView___target].val; /* _target on <self:StringByteView> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1156);
+/* method abstract_text$Buffer$append for (self: Buffer, Text) */
+void core___core__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_core__abstract_text, 1447);
 fatal_exit(1);
+RET_LABEL:;
 }
-var = var1;
+/* method abstract_text$Buffer$upper for (self: Buffer) */
+void core___core__Buffer___upper(val* self) {
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "upper", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1471);
+fatal_exit(1);
+RET_LABEL:;
+}
+/* method abstract_text$Buffer$lower for (self: Buffer) */
+void core___core__Buffer___lower(val* self) {
+const char* var_class_name;
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "lower", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1479);
+fatal_exit(1);
+RET_LABEL:;
+}
+/* method abstract_text$Buffer$chars for (self: Buffer): Sequence[Char] */
+val* core___core__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_core__abstract_text, 1542);
+fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringByteView#target= for (self: StringByteView, Text) */
-void core__abstract_text___core__abstract_text__StringByteView___target_61d(val* self, val* p0) {
-short int var /* : Bool */;
+/* method abstract_text$Buffer$* for (self: Buffer, Int): Buffer */
+val* core___core__Buffer___Text___42d(val* self, long p0) {
+val* var /* : Buffer */;
+long var_i /* var i: Int */;
+static val* varoncenew;
+static int varoncenew_guard;
+val* var1 /* : Buffer */;
+val* var2 /* : Buffer */;
+long var3 /* : Int */;
+long var4 /* : Int */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
-const struct type* type_struct;
 const char* var_class_name;
-/* Covariant cast for argument 0 (target) <p0:Text> isa SELFTYPE */
-/* <p0:Text> isa SELFTYPE */
-type_struct = self->type->resolution_table->types[COLOR_core__abstract_text__StringByteView__SELFTYPE];
-cltype = type_struct->color;
-idtype = type_struct->id;
-if(cltype >= p0->type->table_size) {
-var = 0;
+long var7 /* : Int */;
+val* var8 /* : Buffer */;
+val* var_ret /* var ret: Buffer */;
+long var_its /* var its: Int */;
+long var_ /* var : Int */;
+short int var9 /* : Bool */;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
+const char* var_class_name14;
+short int var15 /* : Bool */;
+long var16 /* : Int */;
+var_i = p0;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
 } else {
-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_core__abstract_text, 1156);
-fatal_exit(1);
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
 }
-self->attrs[COLOR_core__abstract_text__StringByteView___target].val = p0; /* _target on <self:StringByteView> */
-RET_LABEL:;
+{
+var3 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__byte_length]))(self); /* byte_length on <self:Buffer>*/
 }
-/* method abstract_text#StringByteView#is_empty for (self: StringByteView): Bool */
-short int core__abstract_text___core__abstract_text__StringByteView___core__abstract_collection__Collection__is_empty(val* self) {
-short int var /* : Bool */;
-val* var1 /* : Text */;
-val* var3 /* : Text */;
-short int var4 /* : Bool */;
 {
-{ /* Inline abstract_text#StringByteView#target (self) on <self:StringByteView> */
-var3 = self->attrs[COLOR_core__abstract_text__StringByteView___target].val; /* _target on <self:StringByteView> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1156);
+{ /* Inline kernel$Int$* (var3,var_i) on <var3:Int> */
+/* Covariant cast for argument 0 (i) <var_i:Int> isa OTHER */
+/* <var_i:Int> isa OTHER */
+var6 = 1; /* easy <var_i:Int> isa OTHER*/
+if (unlikely(!var6)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 732);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var7 = var3 * var_i;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
 {
-var4 = ((short int(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__Text__is_empty]))(var1); /* is_empty on <var1:Text>*/
-}
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var8 = core__flat___Buffer___with_cap(var1, var4);
 }
-/* method abstract_text#StringByteView#length for (self: StringByteView): Int */
-long core__abstract_text___core__abstract_text__StringByteView___core__abstract_collection__Collection__length(val* self) {
-long var /* : Int */;
-val* var1 /* : Text */;
-val* var3 /* : Text */;
-long var4 /* : Int */;
+var_ret = var8;
+var_its = 0l;
+var_ = var_i;
+for(;;) {
 {
-{ /* Inline abstract_text#StringByteView#target (self) on <self:StringByteView> */
-var3 = self->attrs[COLOR_core__abstract_text__StringByteView___target].val; /* _target on <self:StringByteView> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1156);
+{ /* Inline kernel$Int$< (var_its,var_) on <var_its:Int> */
+/* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
+/* <var_:Int> isa OTHER */
+var11 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var11)) {
+var_class_name14 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name14);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var15 = var_its < var_;
+var9 = var15;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
 }
-{
-var4 = ((long(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var1); /* bytelen on <var1:Text>*/
+if (var9){
+} else {
+goto BREAK_label;
 }
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+{
+((void(*)(val* self, val* p0))(var_ret->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_ret, self); /* append on <var_ret:Buffer>*/
 }
-/* method abstract_text#StringByteView#iterator for (self: StringByteView): Iterator[Byte] */
-val* core__abstract_text___core__abstract_text__StringByteView___core__abstract_collection__Collection__iterator(val* self) {
-val* var /* : Iterator[Byte] */;
-val* var1 /* : IndexedIterator[nullable Object] */;
 {
-var1 = ((val*(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_collection__SequenceRead__iterator_from]))(self, 0l); /* iterator_from on <self:StringByteView>*/
+var16 = core___core__Int___Discrete__successor(var_its, 1l);
 }
-var = var1;
+var_its = var16;
+}
+BREAK_label: (void)0;
+var = var_ret;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringByteView#reverse_iterator for (self: StringByteView): IndexedIterator[Byte] */
-val* core__abstract_text___core__abstract_text__StringByteView___core__abstract_collection__SequenceRead__reverse_iterator(val* self) {
-val* var /* : IndexedIterator[Byte] */;
-val* var1 /* : Text */;
-val* var3 /* : Text */;
-long var4 /* : Int */;
-long var5 /* : Int */;
-short int var7 /* : Bool */;
-int cltype;
-int idtype;
+/* method abstract_text$Buffer$insert_char for (self: Buffer, Char, Int) */
+void core___core__Buffer___insert_char(val* self, uint32_t p0, long p1) {
 const char* var_class_name;
-long var8 /* : Int */;
-val* var9 /* : IndexedIterator[nullable Object] */;
-{
-{ /* Inline abstract_text#StringByteView#target (self) on <self:StringByteView> */
-var3 = self->attrs[COLOR_core__abstract_text__StringByteView___target].val; /* _target on <self:StringByteView> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1156);
+var_class_name = self == NULL ? "null" : self->type->name;
+PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "insert_char", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1603);
 fatal_exit(1);
+RET_LABEL:;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
+/* method abstract_text$Buffer$to_upper for (self: Buffer): Buffer */
+val* core___core__Buffer___Text__to_upper(val* self) {
+val* var /* : Buffer */;
+val* var1 /* : Buffer */;
+val* var_ret /* var ret: Buffer */;
 {
-var4 = ((long(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var1); /* bytelen on <var1:Text>*/
+var1 = core___core__Buffer___core__kernel__Cloneable__clone(self);
 }
+var_ret = var1;
 {
-{ /* Inline kernel#Int#- (var4,1l) on <var4: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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
+((void(*)(val* self))(var_ret->class->vft[COLOR_core__abstract_text__Buffer__upper]))(var_ret); /* upper on <var_ret:Buffer>*/
 }
-var8 = var4 - 1l;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var = var_ret;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
 }
+/* method abstract_text$Buffer$to_lower for (self: Buffer): Buffer */
+val* core___core__Buffer___Text__to_lower(val* self) {
+val* var /* : Buffer */;
+val* var1 /* : Buffer */;
+val* var_ret /* var ret: Buffer */;
+{
+var1 = core___core__Buffer___core__kernel__Cloneable__clone(self);
 }
+var_ret = var1;
 {
-var9 = ((val*(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_collection__SequenceRead__reverse_iterator_from]))(self, var5); /* reverse_iterator_from on <self:StringByteView>*/
+((void(*)(val* self))(var_ret->class->vft[COLOR_core__abstract_text__Buffer__lower]))(var_ret); /* lower on <var_ret:Buffer>*/
 }
-var = var9;
+var = var_ret;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#StringByteView#init for (self: StringByteView) */
-void core__abstract_text___core__abstract_text__StringByteView___core__kernel__Object__init(val* self) {
+/* method abstract_text$Buffer$to_snake_case for (self: Buffer): Buffer */
+val* core___core__Buffer___Text__to_snake_case(val* self) {
+val* var /* : Buffer */;
+val* var1 /* : Buffer */;
+val* var_ret /* var ret: Buffer */;
 {
-((void(*)(val* self))(self->class->vft[COLOR_core__abstract_text___core__abstract_text__StringByteView___core__kernel__Object__init]))(self); /* init on <self:StringByteView>*/
+var1 = core___core__Buffer___core__kernel__Cloneable__clone(self);
 }
-RET_LABEL:;
+var_ret = var1;
+{
+core___core__Buffer___snake_case(var_ret); /* Direct call abstract_text$Buffer$snake_case on <var_ret:Buffer>*/
 }
-/* method abstract_text#String#to_s for (self: String): String */
-val* core___core__String___Object__to_s(val* self) {
-val* var /* : String */;
-var = self;
+var = var_ret;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#String#to_snake_case for (self: String): String */
-val* core___core__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 */;
+/* method abstract_text$Buffer$snake_case for (self: Buffer) */
+void core___core__Buffer___snake_case(val* self) {
+short int var /* : Bool */;
 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 */;
+long var1 /* : Int */;
+short int var2 /* : Bool */;
+short int var4 /* : 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 */;
+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 */;
+short int var10 /* : Bool */;
+long var11 /* : Int */;
 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 */;
+int cltype14;
+int idtype15;
+const char* var_class_name16;
+long var17 /* : Int */;
+short int var18 /* : Bool */;
+short int var19 /* : Bool */;
+short int var_ /* var : Bool */;
+long var20 /* : Int */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+const char* var_class_name25;
+long var26 /* : Int */;
+long var27 /* : Int */;
 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 = core___core__Text___is_lower(self);
-}
-if (var1){
-var = self;
-goto RET_LABEL;
-} else {
-}
-var2 = NEW_core__Buffer(&type_core__Buffer);
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+const char* var_class_name33;
+short int var34 /* : Bool */;
+short int var_35 /* var : Bool */;
+long var36 /* : Int */;
+short int var38 /* : Bool */;
+int cltype39;
+int idtype40;
+const char* var_class_name41;
+long var42 /* : Int */;
+uint32_t var43 /* : Char */;
+short int var44 /* : Bool */;
+long var45 /* : Int */;
+short int var47 /* : Bool */;
+int cltype48;
+int idtype49;
+const char* var_class_name50;
+long var51 /* : Int */;
+uint32_t var52 /* : Char */;
+long var53 /* : Int */;
+short int var55 /* : Bool */;
+int cltype56;
+int idtype57;
+const char* var_class_name58;
+long var59 /* : Int */;
 {
-var3 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:String>*/
+var = core___core__Text___is_lower(self);
 }
-{
-var4 = core__flat___Buffer___with_cap(var2, var3);
+if (var){
+goto RET_LABEL;
+} else {
 }
-var_new_str = var4;
 var_prev_is_lower = 0;
 var_prev_is_upper = 0;
 var_i = 0l;
+for(;;) {
 {
-var5 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:String>*/
+var1 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Buffer>*/
 }
-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)) {
+{ /* 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)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var9 = var_i < var_;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
-}
-}
-if (var6){
-} else {
-goto BREAK_label;
+var5 = var_i < var1;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
-{
-var10 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:String>*/
 }
+if (var2){
 {
-var11 = ((val*(*)(val* self, long p0))((((long)var10&3)?class_info[((long)var10&3)]:var10->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var10, var_i); /* [] on <var10:SequenceRead[Char]>*/
+var6 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:Buffer>*/
 }
-var12 = (uint32_t)((long)(var11)>>2);
-var_char = var12;
 {
-var13 = core___core__Char___is_lower(var_char);
+var7 = ((val*(*)(val* self, long p0))((((long)var6&3)?class_info[((long)var6&3)]:var6->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var6, var_i); /* [] on <var6:SequenceRead[Char](Sequence[Char])>*/
 }
-if (var13){
+var8 = (uint32_t)((long)(var7)>>2);
+var_char = var8;
 {
-((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_new_str, var_char); /* add on <var_new_str:Buffer>*/
+var9 = core___core__Char___is_lower(var_char);
 }
+if (var9){
 var_prev_is_lower = 1;
 var_prev_is_upper = 0;
 } else {
 {
-var14 = core___core__Char___is_upper(var_char);
+var10 = core___core__Char___is_upper(var_char);
 }
-if (var14){
+if (var10){
 if (var_prev_is_lower){
 {
-((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_new_str, '_'); /* add on <var_new_str:Buffer>*/
+((void(*)(val* self, uint32_t p0, long p1))(self->class->vft[COLOR_core__abstract_text__Buffer__insert_char]))(self, '_', var_i); /* insert_char on <self:Buffer>*/
+}
+{
+{ /* Inline kernel$Int$+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var13 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var13)) {
+var_class_name16 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var17 = var_i + 1l;
+var11 = var17;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
+}
+var_i = var11;
 } else {
-var_17 = var_prev_is_upper;
+var_ = var_prev_is_upper;
 if (var_prev_is_upper){
 {
-{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
+{ /* 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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name23);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var22 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var22)) {
+var_class_name25 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name25);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var24 = var_i + 1l;
-var18 = var24;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+var26 = var_i + 1l;
+var20 = var26;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
 }
 {
-var25 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:String>*/
+var27 = ((long(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__length]))(self); /* length on <self:Buffer>*/
 }
 {
-{ /* 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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name31);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+{ /* Inline kernel$Int$< (var20,var27) on <var20: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)) {
+var_class_name33 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var32 = var18 < var25;
-var26 = var32;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
+var34 = var20 < var27;
+var28 = var34;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
-var16 = var26;
+var19 = var28;
 } else {
-var16 = var_17;
-}
-var_33 = var16;
-if (var16){
-{
-var34 = ((val*(*)(val* self))(self->class->vft[COLOR_core__abstract_text__Text__chars]))(self); /* chars on <self:String>*/
+var19 = var_;
 }
+var_35 = var19;
+if (var19){
 {
-{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
+{ /* 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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name40);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var38 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var38)) {
+var_class_name41 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var41 = var_i + 1l;
-var35 = var41;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+var42 = var_i + 1l;
+var36 = var42;
+goto RET_LABEL37;
+RET_LABEL37:(void)0;
 }
 }
 {
-var42 = ((val*(*)(val* self, long p0))((((long)var34&3)?class_info[((long)var34&3)]:var34->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var34, var35); /* [] on <var34:SequenceRead[Char]>*/
+var43 = ((uint32_t(*)(val* self, long p0))(self->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(self, var36); /* [] on <self:Buffer>*/
 }
 {
-var44 = (uint32_t)((long)(var42)>>2);
-var43 = core___core__Char___is_lower(var44);
+var44 = core___core__Char___is_lower(var43);
 }
-var15 = var43;
+var18 = var44;
 } else {
-var15 = var_33;
+var18 = var_35;
+}
+if (var18){
+{
+((void(*)(val* self, uint32_t p0, long p1))(self->class->vft[COLOR_core__abstract_text__Buffer__insert_char]))(self, '_', var_i); /* insert_char on <self:Buffer>*/
 }
-if (var15){
 {
-((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_new_str, '_'); /* add on <var_new_str:Buffer>*/
+{ /* Inline kernel$Int$+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var47 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var47)) {
+var_class_name50 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name50);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var51 = var_i + 1l;
+var45 = var51;
+goto RET_LABEL46;
+RET_LABEL46:(void)0;
 }
+}
+var_i = var45;
 } else {
 }
 }
 {
-var45 = core___core__Char___to_lower(var_char);
+var52 = core___core__Char___to_lower(var_char);
 }
 {
-((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_new_str, var45); /* add on <var_new_str:Buffer>*/
+((void(*)(val* self, long p0, uint32_t p1))(self->class->vft[COLOR_core__abstract_text__Buffer___91d_93d_61d]))(self, var_i, var52); /* []= on <self:Buffer>*/
 }
 var_prev_is_lower = 0;
 var_prev_is_upper = 1;
 } else {
-{
-((void(*)(val* self, uint32_t p0))(var_new_str->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_new_str, var_char); /* add on <var_new_str:Buffer>*/
-}
 var_prev_is_lower = 0;
 var_prev_is_upper = 0;
 }
 }
 {
-var46 = core___core__Int___Discrete__successor(var_i, 1l);
-}
-var_i = var46;
-}
-BREAK_label: (void)0;
-{
-var47 = ((val*(*)(val* self))(var_new_str->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_new_str); /* to_s on <var_new_str:Buffer>*/
-}
-var = var47;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#Buffer#is_dirty for (self: Buffer): Bool */
-short int core___core__Buffer___is_dirty(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_core__abstract_text__Buffer___is_dirty].s; /* _is_dirty on <self:Buffer> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#Buffer#is_dirty= for (self: Buffer, Bool) */
-void core___core__Buffer___is_dirty_61d(val* self, short int p0) {
-self->attrs[COLOR_core__abstract_text__Buffer___is_dirty].s = p0; /* _is_dirty on <self:Buffer> */
-RET_LABEL:;
-}
-/* method abstract_text#Buffer#written for (self: Buffer): Bool */
-short int core___core__Buffer___written(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_core__abstract_text__Buffer___written].s; /* _written on <self:Buffer> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method abstract_text#Buffer#written= for (self: Buffer, Bool) */
-void core___core__Buffer___written_61d(val* self, short int p0) {
-self->attrs[COLOR_core__abstract_text__Buffer___written].s = p0; /* _written on <self:Buffer> */
-RET_LABEL:;
-}
-/* method abstract_text#Buffer#[]= for (self: Buffer, Int, Char) */
-void core___core__Buffer____91d_93d_61d(val* self, long p0, uint32_t p1) {
-const char* var_class_name;
-var_class_name = self == NULL ? "null" : self->type->name;
-PRINT_ERROR("Runtime error: Abstract method `%s` called on `%s`", "[]=", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1367);
-fatal_exit(1);
-RET_LABEL:;
-}
-/* method abstract_text#Buffer#add for (self: Buffer, Char) */
-void core___core__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_core__abstract_text, 1372);
-fatal_exit(1);
-RET_LABEL:;
-}
-/* method abstract_text#Buffer#enlarge for (self: Buffer, Int) */
-void core___core__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_core__abstract_text, 1386);
-fatal_exit(1);
-RET_LABEL:;
-}
-/* method abstract_text#Buffer#append for (self: Buffer, Text) */
-void core___core__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_core__abstract_text, 1389);
+{ /* Inline kernel$Int$+ (var_i,1l) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var55 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var55)) {
+var_class_name58 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name58);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
-RET_LABEL:;
-}
-/* method abstract_text#Buffer#hash for (self: Buffer): Int */
-long core___core__Buffer___core__kernel__Object__hash(val* self) {
-long var /* : Int */;
-short int var1 /* : Bool */;
-short int var3 /* : Bool */;
-long var5 /* : Int */;
-{
-{ /* Inline abstract_text#Buffer#is_dirty (self) on <self:Buffer> */
-var3 = self->attrs[COLOR_core__abstract_text__Buffer___is_dirty].s; /* _is_dirty on <self:Buffer> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
 }
-if (var1){
-{
-{ /* Inline abstract_text#Text#hash_cache= (self,((val*)NULL)) on <self:Buffer> */
-self->attrs[COLOR_core__abstract_text__Text___hash_cache].val = ((val*)NULL); /* _hash_cache on <self:Buffer> */
-RET_LABEL4:(void)0;
+var59 = var_i + 1l;
+var53 = var59;
+goto RET_LABEL54;
+RET_LABEL54:(void)0;
 }
 }
+var_i = var53;
 } else {
+goto BREAK_label;
 }
-{
-var5 = ((long(*)(val* self))(self->class->vft[COLOR_core___core__Buffer___core__kernel__Object__hash]))(self); /* hash on <self:Buffer>*/
-}
-var = var5;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method abstract_text#Buffer#chars for (self: Buffer): Sequence[Char] */
-val* core___core__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_core__abstract_text, 1467);
-fatal_exit(1);
+BREAK_label: (void)0;
 RET_LABEL:;
-return var;
 }
-/* method abstract_text#Object#to_s for (self: Object): String */
+/* method abstract_text$Object$to_s for (self: Object): String */
 val* core__abstract_text___Object___to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
@@ -5107,11 +6219,11 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Object#native_class_name for (self: Object): NativeString */
+/* method abstract_text$Object$native_class_name for (self: Object): CString */
 char* core__abstract_text___Object___native_class_name(val* self) {
-char* var /* : NativeString */;
+char* var /* : CString */;
 const char* var_class_name;
-char* var1 /* : NativeString */;
+char* var1 /* : CString */;
 var_class_name = self == NULL ? "null" : (((long)self&3)?type_info[((long)self&3)]:self->type)->name;
 var1 = (char*)var_class_name;
 var = var1;
@@ -5119,15 +6231,15 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Object#class_name for (self: Object): String */
+/* method abstract_text$Object$class_name for (self: Object): String */
 val* core__abstract_text___Object___class_name(val* self) {
 val* var /* : String */;
-char* var1 /* : NativeString */;
+char* var1 /* : CString */;
 const char* var_class_name;
-char* var3 /* : NativeString */;
+char* var3 /* : CString */;
 val* var4 /* : String */;
 {
-{ /* Inline abstract_text#Object#native_class_name (self) on <self:Object> */
+{ /* Inline abstract_text$Object$native_class_name (self) on <self:Object> */
 var_class_name = self == NULL ? "null" : (((long)self&3)?type_info[((long)self&3)]:self->type)->name;
 var3 = (char*)var_class_name;
 var1 = var3;
@@ -5136,85 +6248,109 @@ RET_LABEL2:(void)0;
 }
 }
 {
-var4 = core__flat___NativeString___core__abstract_text__Object__to_s(var1);
+var4 = core__flat___CString___core__abstract_text__Object__to_s(var1);
 }
 var = var4;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Object#inspect for (self: Object): String */
+/* method abstract_text$Object$inspect for (self: Object): String */
 val* core__abstract_text___Object___inspect(val* self) {
 val* var /* : String */;
 val* var1 /* : NativeArray[String] */;
 static val* varonce;
 static val* varonce2;
 val* var3 /* : String */;
-char* var4 /* : NativeString */;
+char* var4 /* : CString */;
 val* var5 /* : String */;
-static val* varonce6;
-val* var7 /* : String */;
-char* var8 /* : NativeString */;
-val* var9 /* : String */;
-val* var10 /* : String */;
+val* var6 /* : nullable Int */;
+val* var7 /* : nullable Int */;
+val* var8 /* : nullable Bool */;
+val* var9 /* : nullable Bool */;
+static val* varonce10;
 val* var11 /* : String */;
+char* var12 /* : CString */;
+val* var13 /* : String */;
+val* var14 /* : nullable Int */;
+val* var15 /* : nullable Int */;
+val* var16 /* : nullable Bool */;
+val* var17 /* : nullable Bool */;
+val* var18 /* : String */;
+val* var19 /* : String */;
 if (unlikely(varonce==NULL)) {
-var1 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
+var1 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
 if (likely(varonce2!=NULL)) {
 var3 = varonce2;
 } else {
 var4 = "<";
-var5 = core__flat___NativeString___to_s_full(var4, 1l, 1l);
+var6 = (val*)(1l<<2|1);
+var7 = (val*)(1l<<2|1);
+var8 = (val*)((long)(0)<<2|3);
+var9 = (val*)((long)(0)<<2|3);
+var5 = core__flat___CString___to_s_unsafe(var4, var6, var7, var8, var9);
 var3 = var5;
 varonce2 = var3;
 }
 ((struct instance_core__NativeArray*)var1)->values[0]=var3;
-if (likely(varonce6!=NULL)) {
-var7 = varonce6;
+if (likely(varonce10!=NULL)) {
+var11 = varonce10;
 } else {
-var8 = ">";
-var9 = core__flat___NativeString___to_s_full(var8, 1l, 1l);
-var7 = var9;
-varonce6 = var7;
+var12 = ">";
+var14 = (val*)(1l<<2|1);
+var15 = (val*)(1l<<2|1);
+var16 = (val*)((long)(0)<<2|3);
+var17 = (val*)((long)(0)<<2|3);
+var13 = core__flat___CString___to_s_unsafe(var12, var14, var15, var16, var17);
+var11 = var13;
+varonce10 = var11;
 }
-((struct instance_core__NativeArray*)var1)->values[2]=var7;
+((struct instance_core__NativeArray*)var1)->values[2]=var11;
 } else {
 var1 = varonce;
 varonce = NULL;
 }
 {
-var10 = core__abstract_text___Object___inspect_head(self);
+var18 = core__abstract_text___Object___inspect_head(self);
 }
-((struct instance_core__NativeArray*)var1)->values[1]=var10;
+((struct instance_core__NativeArray*)var1)->values[1]=var18;
 {
-var11 = ((val*(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
+var19 = ((val*(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
 }
 varonce = var1;
-var = var11;
+var = var19;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Object#inspect_head for (self: Object): String */
+/* method abstract_text$Object$inspect_head for (self: Object): String */
 val* core__abstract_text___Object___inspect_head(val* self) {
 val* var /* : String */;
 val* var1 /* : NativeArray[String] */;
 static val* varonce;
 static val* varonce2;
 val* var3 /* : String */;
-char* var4 /* : NativeString */;
+char* var4 /* : CString */;
 val* var5 /* : String */;
-val* var6 /* : String */;
-long var7 /* : Int */;
-val* var8 /* : String */;
-val* var9 /* : String */;
+val* var6 /* : nullable Int */;
+val* var7 /* : nullable Int */;
+val* var8 /* : nullable Bool */;
+val* var9 /* : nullable Bool */;
+val* var10 /* : String */;
+long var11 /* : Int */;
+val* var12 /* : String */;
+val* var13 /* : String */;
 if (unlikely(varonce==NULL)) {
-var1 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
+var1 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
 if (likely(varonce2!=NULL)) {
 var3 = varonce2;
 } else {
 var4 = ":#";
-var5 = core__flat___NativeString___to_s_full(var4, 2l, 2l);
+var6 = (val*)(2l<<2|1);
+var7 = (val*)(2l<<2|1);
+var8 = (val*)((long)(0)<<2|3);
+var9 = (val*)((long)(0)<<2|3);
+var5 = core__flat___CString___to_s_unsafe(var4, var6, var7, var8, var9);
 var3 = var5;
 varonce2 = var3;
 }
@@ -5224,26 +6360,26 @@ var1 = varonce;
 varonce = NULL;
 }
 {
-var6 = core__abstract_text___Object___class_name(self);
+var10 = core__abstract_text___Object___class_name(self);
 }
-((struct instance_core__NativeArray*)var1)->values[0]=var6;
+((struct instance_core__NativeArray*)var1)->values[0]=var10;
 {
-var7 = ((long(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_core__kernel__Object__object_id]))(self); /* object_id on <self:Object>*/
+var11 = ((long(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_core__kernel__Object__object_id]))(self); /* object_id on <self:Object>*/
 }
 {
-var8 = core__abstract_text___Int___to_hex(var7);
+var12 = core__abstract_text___Int___to_hex(var11);
 }
-((struct instance_core__NativeArray*)var1)->values[2]=var8;
+((struct instance_core__NativeArray*)var1)->values[2]=var12;
 {
-var9 = ((val*(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
+var13 = ((val*(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
 }
 varonce = var1;
-var = var9;
+var = var13;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Bool#to_s for (self: Bool): String */
+/* method abstract_text$Bool$to_s for (self: Bool): String */
 val* core__abstract_text___Bool___Object__to_s(short int self) {
 val* var /* : String */;
 static val* varonce;
@@ -5251,15 +6387,23 @@ static int varonce_guard;
 val* var1 /* : String */;
 static val* varonce2;
 val* var3 /* : String */;
-char* var4 /* : NativeString */;
+char* var4 /* : CString */;
 val* var5 /* : String */;
-static val* varonce6;
-static int varonce6_guard;
-val* var7 /* : String */;
-static val* varonce8;
-val* var9 /* : String */;
-char* var10 /* : NativeString */;
+val* var6 /* : nullable Int */;
+val* var7 /* : nullable Int */;
+val* var8 /* : nullable Bool */;
+val* var9 /* : nullable Bool */;
+static val* varonce10;
+static int varonce10_guard;
 val* var11 /* : String */;
+static val* varonce12;
+val* var13 /* : String */;
+char* var14 /* : CString */;
+val* var15 /* : String */;
+val* var16 /* : nullable Int */;
+val* var17 /* : nullable Int */;
+val* var18 /* : nullable Bool */;
+val* var19 /* : nullable Bool */;
 if (self){
 if (likely(varonce_guard)) {
 var1 = varonce;
@@ -5268,7 +6412,11 @@ if (likely(varonce2!=NULL)) {
 var3 = varonce2;
 } else {
 var4 = "true";
-var5 = core__flat___NativeString___to_s_full(var4, 4l, 4l);
+var6 = (val*)(4l<<2|1);
+var7 = (val*)(4l<<2|1);
+var8 = (val*)((long)(0)<<2|3);
+var9 = (val*)((long)(0)<<2|3);
+var5 = core__flat___CString___to_s_unsafe(var4, var6, var7, var8, var9);
 var3 = var5;
 varonce2 = var3;
 }
@@ -5279,28 +6427,32 @@ varonce_guard = 1;
 var = var1;
 goto RET_LABEL;
 } else {
-if (likely(varonce6_guard)) {
-var7 = varonce6;
+if (likely(varonce10_guard)) {
+var11 = varonce10;
 } else {
-if (likely(varonce8!=NULL)) {
-var9 = varonce8;
+if (likely(varonce12!=NULL)) {
+var13 = varonce12;
 } else {
-var10 = "false";
-var11 = core__flat___NativeString___to_s_full(var10, 5l, 5l);
-var9 = var11;
-varonce8 = var9;
+var14 = "false";
+var16 = (val*)(5l<<2|1);
+var17 = (val*)(5l<<2|1);
+var18 = (val*)((long)(0)<<2|3);
+var19 = (val*)((long)(0)<<2|3);
+var15 = core__flat___CString___to_s_unsafe(var14, var16, var17, var18, var19);
+var13 = var15;
+varonce12 = var13;
 }
-var7 = var9;
-varonce6 = var7;
-varonce6_guard = 1;
+var11 = var13;
+varonce10 = var11;
+varonce10_guard = 1;
 }
-var = var7;
+var = var11;
 goto RET_LABEL;
 }
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Bool#to_s for (self: Object): String */
+/* method abstract_text$Bool$to_s for (self: Object): String */
 val* VIRTUAL_core__abstract_text___Bool___Object__to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
@@ -5311,120 +6463,134 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Byte#byte_to_s_len for (self: Byte): Int */
+/* method abstract_text$Byte$byte_to_s_len for (self: Byte): Int */
 long core__abstract_text___Byte___byte_to_s_len(unsigned char self) {
 long var /* : Int */;
 long var1 /* : Int */;
-var1 = abstract_text___Byte_byte_to_s_len___impl(self);
+var1 = core__abstract_text___Byte_byte_to_s_len___impl(self);
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Byte#native_byte_to_s for (self: Byte, NativeString, Int) */
+/* method abstract_text$Byte$native_byte_to_s for (self: Byte, CString, Int) */
 void core__abstract_text___Byte___native_byte_to_s(unsigned char self, char* p0, long p1) {
-abstract_text___Byte_native_byte_to_s___impl(self, p0, p1);
+core__abstract_text___Byte_native_byte_to_s___impl(self, p0, p1);
 RET_LABEL:;
 }
-/* method abstract_text#Byte#to_s for (self: Byte): String */
+/* method abstract_text$Byte$to_s for (self: Byte): String */
 val* core__abstract_text___Byte___Object__to_s(unsigned char self) {
 val* var /* : String */;
 long var1 /* : Int */;
 long var3 /* : Int */;
 long var_nslen /* var nslen: Int */;
-char* var4 /* : NativeString */;
-long var5 /* : Int */;
-short int var7 /* : Bool */;
+static char* varoncenew;
+static int varoncenew_guard;
+char* var4 /* : CString */;
+char* var5 /* : CString */;
+long var6 /* : Int */;
+short int var8 /* : 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 /* : String */;
-val* var22 /* : nullable Int */;
+long var9 /* : Int */;
+char* var10 /* : CString */;
+char* var12 /* : CString */;
+char* var_ns /* var ns: CString */;
+long var14 /* : Int */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+const char* var_class_name19;
+long var20 /* : Int */;
+val* var22 /* : String */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Bool */;
+val* var25 /* : nullable Bool */;
 {
-{ /* Inline abstract_text#Byte#byte_to_s_len (self) on <self:Byte> */
-var3 = abstract_text___Byte_byte_to_s_len___impl(self);
+{ /* Inline abstract_text$Byte$byte_to_s_len (self) on <self:Byte> */
+var3 = core__abstract_text___Byte_byte_to_s_len___impl(self);
 var1 = var3;
 goto RET_LABEL2;
 RET_LABEL2:(void)0;
 }
 }
 var_nslen = var1;
-var4 = NULL/*special!*/;
+if (likely(varoncenew_guard)) {
+var4 = varoncenew;
+} else {
+var5 = NULL/*special!*/;
+var4 = var5;
+varoncenew = var4;
+varoncenew_guard = 1;
+}
 {
-{ /* Inline kernel#Int#+ (var_nslen,1l) on <var_nslen:Int> */
+{ /* 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)) {
+var8 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var8)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var8 = var_nslen + 1l;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var9 = var_nslen + 1l;
+var6 = var9;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
 }
 {
-{ /* Inline native#NativeString#new (var4,var5) on <var4:NativeString> */
-var11 = (char*)nit_alloc(var5);
-var9 = var11;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+{ /* Inline native$CString$new (var4,var6) on <var4:CString> */
+var12 = (char*)nit_alloc(var6);
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-var_ns = var9;
+var_ns = var10;
 {
-{ /* Inline native#NativeString#[]= (var_ns,var_nslen,((unsigned char)0x00)) on <var_ns:NativeString> */
+{ /* Inline native$CString$[]= (var_ns,var_nslen,((unsigned char)0x00)) on <var_ns:CString> */
 var_ns[var_nslen]=(unsigned char)((unsigned char)0x00);
-RET_LABEL12:(void)0;
+RET_LABEL13:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var_nslen,1l) on <var_nslen:Int> */
+{ /* 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_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var16 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var16)) {
+var_class_name19 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name19);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var19 = var_nslen + 1l;
-var13 = var19;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+var20 = var_nslen + 1l;
+var14 = var20;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
 {
-{ /* Inline abstract_text#Byte#native_byte_to_s (self,var_ns,var13) on <self:Byte> */
-abstract_text___Byte_native_byte_to_s___impl(self, var_ns, var13);
-RET_LABEL20:(void)0;
+{ /* Inline abstract_text$Byte$native_byte_to_s (self,var_ns,var14) on <self:Byte> */
+core__abstract_text___Byte_native_byte_to_s___impl(self, var_ns, var14);
+RET_LABEL21:(void)0;
 }
 }
 {
-var22 = (val*)(var_nslen<<2|1);
-var21 = core__flat___NativeString___to_s_unsafe(var_ns, var22);
+var23 = (val*)(var_nslen<<2|1);
+var24 = (val*)((long)(0)<<2|3);
+var25 = (val*)((long)(0)<<2|3);
+var22 = core__flat___CString___to_s_unsafe(var_ns, var23, ((val*)NULL), var24, var25);
 }
-var = var21;
+var = var22;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Byte#to_s for (self: Object): String */
+/* method abstract_text$Byte$to_s for (self: Object): String */
 val* VIRTUAL_core__abstract_text___Byte___Object__to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
@@ -5435,43 +6601,42 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Int#strerror_ext for (self: Int): NativeString */
+/* method abstract_text$Int$strerror_ext for (self: Int): CString */
 char* core__abstract_text___Int___strerror_ext(long self) {
-char* var /* : NativeString */;
-char* var1 /* : NativeString */;
-var1 = abstract_text___Int_strerror_ext___impl(self);
+char* var /* : CString */;
+char* var1 /* : CString */;
+var1 = core__abstract_text___Int_strerror_ext___impl(self);
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Int#strerror for (self: Int): String */
+/* method abstract_text$Int$strerror for (self: Int): String */
 val* core__abstract_text___Int___strerror(long self) {
 val* var /* : String */;
-char* var1 /* : NativeString */;
-char* var3 /* : NativeString */;
+char* var1 /* : CString */;
+char* var3 /* : CString */;
 val* var4 /* : String */;
 {
-{ /* Inline abstract_text#Int#strerror_ext (self) on <self:Int> */
-var3 = abstract_text___Int_strerror_ext___impl(self);
+{ /* Inline abstract_text$Int$strerror_ext (self) on <self:Int> */
+var3 = core__abstract_text___Int_strerror_ext___impl(self);
 var1 = var3;
 goto RET_LABEL2;
 RET_LABEL2:(void)0;
 }
 }
 {
-var4 = core__flat___NativeString___core__abstract_text__Object__to_s(var1);
+var4 = core__flat___CString___core__abstract_text__Object__to_s(var1);
 }
 var = var4;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Int#fill_buffer for (self: Int, Buffer, Int, Bool) */
-void core__abstract_text___Int___fill_buffer(long self, val* p0, long p1, short int p2) {
+/* method abstract_text$Int$fill_buffer for (self: Int, Buffer, Int) */
+void core__abstract_text___Int___fill_buffer(long self, val* p0, long p1) {
 val* var_s /* var s: Buffer */;
 long var_base /* var base: Int */;
-short int var_signed /* var signed: Bool */;
 short int var /* : Bool */;
 short int var2 /* : Bool */;
 int cltype;
@@ -5528,16 +6693,15 @@ const char* var_class_name55;
 long var56 /* : Int */;
 var_s = p0;
 var_base = p1;
-var_signed = p2;
 {
-{ /* Inline kernel#Int#< (self,0l) on <self:Int> */
+{ /* Inline kernel$Int$< (self,0l) on <self:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var2 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var2)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var3 = self < 0l;
@@ -5548,7 +6712,7 @@ RET_LABEL1:(void)0;
 }
 if (var){
 {
-{ /* Inline kernel#Int#unary - (self) on <self:Int> */
+{ /* Inline kernel$Int$unary - (self) on <self:Int> */
 var6 = -self;
 var4 = var6;
 goto RET_LABEL5;
@@ -5565,7 +6729,7 @@ var8 = (val*)((long)('-')<<2|2);
 }
 } else {
 {
-{ /* Inline kernel#Int#== (self,0l) on <self:Int> */
+{ /* Inline kernel$Int$== (self,0l) on <self:Int> */
 var11 = self == 0l;
 var9 = var11;
 goto RET_LABEL10;
@@ -5589,14 +6753,14 @@ var_n = self;
 var14 = core___core__Int___digit_count(self, var_base);
 }
 {
-{ /* Inline kernel#Int#- (var14,1l) on <var14:Int> */
+{ /* Inline kernel$Int$- (var14,1l) on <var14:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var17 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var17)) {
 var_class_name20 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var21 = var14 - 1l;
@@ -5608,14 +6772,14 @@ RET_LABEL16:(void)0;
 var_pos = var15;
 for(;;) {
 {
-{ /* Inline kernel#Int#>= (var_pos,0l) on <var_pos:Int> */
+{ /* Inline kernel$Int$>= (var_pos,0l) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var25 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var25)) {
 var_class_name28 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
 var29 = var_pos >= 0l;
@@ -5627,14 +6791,14 @@ RET_LABEL24:(void)0;
 var_ = var23;
 if (var23){
 {
-{ /* Inline kernel#Int#> (var_n,0l) on <var_n:Int> */
+{ /* Inline kernel$Int$> (var_n,0l) on <var_n:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var32 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var32)) {
 var_class_name35 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name35);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var36 = var_n > 0l;
@@ -5652,7 +6816,7 @@ if (var22){
 var37 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__chars]))(var_s); /* chars on <var_s:Buffer>*/
 }
 {
-{ /* Inline kernel#Int#% (var_n,var_base) on <var_n:Int> */
+{ /* Inline kernel$Int$% (var_n,var_base) on <var_n:Int> */
 var40 = var_n % var_base;
 var38 = var40;
 goto RET_LABEL39;
@@ -5667,14 +6831,14 @@ var42 = (val*)((long)(var41)<<2|2);
 ((void(*)(val* self, long p0, val* p1))((((long)var37&3)?class_info[((long)var37&3)]:var37->class)->vft[COLOR_core__abstract_collection__Sequence___91d_93d_61d]))(var37, var_pos, var42); /* []= on <var37:SequenceRead[Char](Sequence[Char])>*/
 }
 {
-{ /* Inline kernel#Int#/ (var_n,var_base) on <var_n:Int> */
+{ /* Inline kernel$Int$/ (var_n,var_base) on <var_n:Int> */
 /* Covariant cast for argument 0 (i) <var_base:Int> isa OTHER */
 /* <var_base:Int> isa OTHER */
 var45 = 1; /* easy <var_base:Int> isa OTHER*/
 if (unlikely(!var45)) {
 var_class_name48 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 736);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 733);
 fatal_exit(1);
 }
 var49 = var_n / var_base;
@@ -5685,14 +6849,14 @@ RET_LABEL44:(void)0;
 }
 var_n = var43;
 {
-{ /* Inline kernel#Int#- (var_pos,1l) on <var_pos:Int> */
+{ /* Inline kernel$Int$- (var_pos,1l) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var52 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var52)) {
 var_class_name55 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var56 = var_pos - 1l;
@@ -5709,34 +6873,120 @@ goto BREAK_label;
 BREAK_label: (void)0;
 RET_LABEL:;
 }
-/* method abstract_text#Int#int_to_s_len for (self: Int): Int */
+/* method abstract_text$Int$int_to_s_len for (self: Int): Int */
 long core__abstract_text___Int___int_to_s_len(long self) {
 long var /* : Int */;
 long var1 /* : Int */;
-var1 = abstract_text___Int_int_to_s_len___impl(self);
+var1 = core__abstract_text___Int_int_to_s_len___impl(self);
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Int#native_int_to_s for (self: Int, NativeString, Int) */
+/* method abstract_text$Int$native_int_to_s for (self: Int, CString, Int) */
 void core__abstract_text___Int___native_int_to_s(long self, char* p0, long p1) {
-abstract_text___Int_native_int_to_s___impl(self, p0, p1);
+core__abstract_text___Int_native_int_to_s___impl(self, p0, p1);
+RET_LABEL:;
+}
+/* method abstract_text$Int$to_base for (self: Int, Int): String */
+val* core__abstract_text___Int___to_base(long self, long p0) {
+val* var /* : String */;
+long var_base /* var base: Int */;
+long var1 /* : Int */;
+long var_l /* var l: Int */;
+static val* varoncenew;
+static int varoncenew_guard;
+val* var2 /* : Buffer */;
+val* var3 /* : Buffer */;
+val* var4 /* : Buffer */;
+val* var_s /* var s: Buffer */;
+long var_x /* var x: Int */;
+long var_ /* var : Int */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+short int var8 /* : Bool */;
+long var9 /* : Int */;
+val* var10 /* : String */;
+var_base = p0;
+{
+var1 = core___core__Int___digit_count(self, var_base);
+}
+var_l = var1;
+if (likely(varoncenew_guard)) {
+var2 = varoncenew;
+} else {
+var3 = NEW_core__Buffer(&type_core__Buffer);
+var2 = var3;
+varoncenew = var2;
+varoncenew_guard = 1;
+}
+{
+var4 = core__flat___Buffer___new(var2);
+}
+var_s = var4;
+{
+((void(*)(val* self, long p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__enlarge]))(var_s, var_l); /* enlarge on <var_s:Buffer>*/
+}
+var_x = 0l;
+var_ = var_l;
+for(;;) {
+{
+{ /* Inline kernel$Int$< (var_x,var_) on <var_x: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)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
+fatal_exit(1);
+}
+var8 = var_x < var_;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+}
+if (var5){
+} else {
+goto BREAK_label;
+}
+{
+((void(*)(val* self, uint32_t p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__add]))(var_s, ' '); /* add on <var_s:Buffer>*/
+}
+{
+var9 = core___core__Int___Discrete__successor(var_x, 1l);
+}
+var_x = var9;
+}
+BREAK_label: (void)0;
+{
+core__abstract_text___Int___fill_buffer(self, var_s, var_base); /* Direct call abstract_text$Int$fill_buffer on <self:Int>*/
+}
+{
+var10 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_s); /* to_s on <var_s:Buffer>*/
+}
+var = var10;
+goto RET_LABEL;
 RET_LABEL:;
+return var;
 }
-/* method abstract_text#Int#to_hex for (self: Int): String */
+/* method abstract_text$Int$to_hex for (self: Int): String */
 val* core__abstract_text___Int___to_hex(long self) {
 val* var /* : String */;
 val* var1 /* : String */;
 {
-var1 = core__flat___Int___to_base(self, 16l, 0);
+var1 = core__abstract_text___Int___to_base(self, 16l);
 }
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Float#to_s for (self: Float): String */
+/* method abstract_text$Float$to_s for (self: Float): String */
 val* core__abstract_text___Float___Object__to_s(double self) {
 val* var /* : String */;
 val* var1 /* : String */;
@@ -5809,7 +7059,7 @@ var_str = var1;
 var3 = core__math___Float___is_inf(self);
 }
 {
-{ /* Inline kernel#Int#!= (var3,0l) on <var3:Int> */
+{ /* Inline kernel$Int$!= (var3,0l) on <var3:Int> */
 var6 = var3 == 0l;
 var7 = !var6;
 var4 = var7;
@@ -5822,8 +7072,8 @@ if (var4){
 var2 = var_;
 } else {
 {
-{ /* Inline math#Float#is_nan (self) on <self:Float> */
-var10 = math___Float_is_nan___impl(self);
+{ /* Inline math$Float$is_nan (self) on <self:Float> */
+var10 = core__math___Float_is_nan___impl(self);
 var8 = var10;
 goto RET_LABEL9;
 RET_LABEL9:(void)0;
@@ -5842,14 +7092,14 @@ var11 = ((long(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Tex
 var_len = var11;
 var_i = 0l;
 {
-{ /* Inline kernel#Int#- (var_len,1l) on <var_len:Int> */
+{ /* 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_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var15 = var_len - 1l;
@@ -5861,14 +7111,14 @@ RET_LABEL13:(void)0;
 var_16 = var12;
 for(;;) {
 {
-{ /* Inline kernel#Int#<= (var_i,var_16) on <var_i:Int> */
+{ /* Inline kernel$Int$<= (var_i,var_16) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_16:Int> isa OTHER */
 /* <var_16:Int> isa OTHER */
 var19 = 1; /* easy <var_16:Int> isa OTHER*/
 if (unlikely(!var19)) {
 var_class_name22 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name22);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
 fatal_exit(1);
 }
 var23 = var_i <= var_16;
@@ -5882,14 +7132,14 @@ if (var17){
 goto BREAK_label;
 }
 {
-{ /* Inline kernel#Int#- (var_len,1l) on <var_len:Int> */
+{ /* Inline kernel$Int$- (var_len,1l) on <var_len:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var26 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var26)) {
 var_class_name29 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var30 = var_len - 1l;
@@ -5899,14 +7149,14 @@ RET_LABEL25:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var24,var_i) on <var24:Int> */
+{ /* Inline kernel$Int$- (var24,var_i) on <var24:Int> */
 /* Covariant cast for argument 0 (i) <var_i:Int> isa OTHER */
 /* <var_i:Int> isa OTHER */
 var33 = 1; /* easy <var_i:Int> isa OTHER*/
 if (unlikely(!var33)) {
 var_class_name36 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var37 = var24 - var_i;
@@ -5925,7 +7175,7 @@ var39 = ((val*(*)(val* self, long p0))((((long)var38&3)?class_info[((long)var38&
 var40 = (uint32_t)((long)(var39)>>2);
 var_c = var40;
 {
-{ /* Inline kernel#Char#== (var_c,'0') on <var_c:Char> */
+{ /* Inline kernel$Char$== (var_c,'0') on <var_c:Char> */
 var43 = var_c == '0';
 var41 = var43;
 goto RET_LABEL42;
@@ -5936,7 +7186,7 @@ if (var41){
 goto BREAK_label44;
 } else {
 {
-{ /* Inline kernel#Char#== (var_c,'.') on <var_c:Char> */
+{ /* Inline kernel$Char$== (var_c,'.') on <var_c:Char> */
 var47 = var_c == '.';
 var45 = var47;
 goto RET_LABEL46;
@@ -5945,14 +7195,14 @@ RET_LABEL46:(void)0;
 }
 if (var45){
 {
-{ /* Inline kernel#Int#+ (var_j,2l) on <var_j:Int> */
+{ /* Inline kernel$Int$+ (var_j,2l) on <var_j:Int> */
 /* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
 /* <2l:Int> isa OTHER */
 var50 = 1; /* easy <2l:Int> isa OTHER*/
 if (unlikely(!var50)) {
 var_class_name53 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var54 = var_j + 2l;
@@ -5968,14 +7218,14 @@ var = var55;
 goto RET_LABEL;
 } else {
 {
-{ /* Inline kernel#Int#+ (var_j,1l) on <var_j:Int> */
+{ /* Inline kernel$Int$+ (var_j,1l) on <var_j:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var58 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var58)) {
 var_class_name61 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name61);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var62 = var_j + 1l;
@@ -6003,7 +7253,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Float#to_s for (self: Object): String */
+/* method abstract_text$Float$to_s for (self: Object): String */
 val* VIRTUAL_core__abstract_text___Float___Object__to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
@@ -6014,7 +7264,7 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Float#to_precision for (self: Float, Int): String */
+/* method abstract_text$Float$to_precision for (self: Float, Int): String */
 val* core__abstract_text___Float___to_precision(double self, long p0) {
 val* var /* : String */;
 long var_decimals /* var decimals: Int */;
@@ -6022,142 +7272,178 @@ short int var1 /* : Bool */;
 short int var3 /* : Bool */;
 static val* varonce;
 val* var4 /* : String */;
-char* var5 /* : NativeString */;
+char* var5 /* : CString */;
 val* var6 /* : String */;
-long var7 /* : Int */;
+val* var7 /* : nullable Int */;
+val* var8 /* : nullable Int */;
+val* var9 /* : nullable Bool */;
+val* var10 /* : nullable Bool */;
+long var11 /* : Int */;
 long var_isinf /* var isinf: Int */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-static val* varonce11;
-val* var12 /* : String */;
-char* var13 /* : NativeString */;
-val* var14 /* : String */;
-long var15 /* : Int */;
-long var17 /* : Int */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-static val* varonce21;
-val* var22 /* : String */;
-char* var23 /* : NativeString */;
-val* var24 /* : String */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
-long var28 /* : Int */;
-long var30 /* : Int */;
-val* var31 /* : String */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
+static val* varonce15;
+val* var16 /* : String */;
+char* var17 /* : CString */;
+val* var18 /* : String */;
+val* var19 /* : nullable Int */;
+val* var20 /* : nullable Int */;
+val* var21 /* : nullable Bool */;
+val* var22 /* : nullable Bool */;
+long var23 /* : Int */;
+long var25 /* : Int */;
+short int var26 /* : Bool */;
+short int var28 /* : Bool */;
+static val* varonce29;
+val* var30 /* : String */;
+char* var31 /* : CString */;
+val* var32 /* : String */;
+val* var33 /* : nullable Int */;
+val* var34 /* : nullable Int */;
+val* var35 /* : nullable Bool */;
+val* var36 /* : nullable Bool */;
+short int var37 /* : Bool */;
+short int var39 /* : Bool */;
+long var40 /* : Int */;
+long var42 /* : Int */;
+val* var43 /* : String */;
 double var_f /* var f: Float */;
 long var_i /* var i: Int */;
 long var_ /* var : Int */;
-short int var32 /* : Bool */;
-short int var34 /* : Bool */;
+short int var44 /* : Bool */;
+short int var46 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var35 /* : Bool */;
-double var36 /* : Float */;
-short int var38 /* : Bool */;
-int cltype39;
-int idtype40;
-const char* var_class_name41;
-double var42 /* : Float */;
-long var43 /* : Int */;
-short int var44 /* : Bool */;
-short int var46 /* : Bool */;
-int cltype47;
-int idtype48;
-const char* var_class_name49;
+short int var47 /* : Bool */;
+double var48 /* : Float */;
 short int var50 /* : Bool */;
-double var51 /* : Float */;
-short int var53 /* : Bool */;
-int cltype54;
-int idtype55;
-const char* var_class_name56;
-double var57 /* : Float */;
-double var58 /* : Float */;
-short int var60 /* : Bool */;
-int cltype61;
-int idtype62;
-const char* var_class_name63;
-double var64 /* : Float */;
-long var65 /* : Int */;
-long var67 /* : Int */;
-long var_i68 /* var i: Int */;
-short int var69 /* : Bool */;
-short int var71 /* : Bool */;
-static val* varonce72;
-val* var73 /* : String */;
-char* var74 /* : NativeString */;
-val* var75 /* : String */;
-static val* varonce76;
-val* var77 /* : String */;
-char* var78 /* : NativeString */;
-val* var79 /* : String */;
-val* var80 /* : String */;
-val* var81 /* : String */;
-long var82 /* : Int */;
-val* var83 /* : String */;
+int cltype51;
+int idtype52;
+const char* var_class_name53;
+double var54 /* : Float */;
+long var55 /* : Int */;
+short int var56 /* : Bool */;
+short int var58 /* : Bool */;
+int cltype59;
+int idtype60;
+const char* var_class_name61;
+short int var62 /* : Bool */;
+double var63 /* : Float */;
+short int var65 /* : Bool */;
+int cltype66;
+int idtype67;
+const char* var_class_name68;
+double var69 /* : Float */;
+double var70 /* : Float */;
+short int var72 /* : Bool */;
+int cltype73;
+int idtype74;
+const char* var_class_name75;
+double var76 /* : Float */;
+long var77 /* : Int */;
+long var79 /* : Int */;
+long var_i80 /* var i: Int */;
+short int var81 /* : Bool */;
+short int var83 /* : Bool */;
+static val* varonce84;
+val* var85 /* : String */;
+char* var86 /* : CString */;
+val* var87 /* : String */;
+val* var88 /* : nullable Int */;
+val* var89 /* : nullable Int */;
+val* var90 /* : nullable Bool */;
+val* var91 /* : nullable Bool */;
+static val* varonce92;
+val* var93 /* : String */;
+char* var94 /* : CString */;
+val* var95 /* : String */;
+val* var96 /* : nullable Int */;
+val* var97 /* : nullable Int */;
+val* var98 /* : nullable Bool */;
+val* var99 /* : nullable Bool */;
+val* var100 /* : Text */;
+val* var101 /* : Text */;
+long var102 /* : Int */;
+val* var103 /* : String */;
 val* var_s /* var s: String */;
-long var84 /* : Int */;
+long var104 /* : Int */;
 long var_sl /* var sl: Int */;
-short int var85 /* : Bool */;
-short int var87 /* : Bool */;
-int cltype88;
-int idtype89;
-const char* var_class_name90;
-short int var91 /* : Bool */;
-long var92 /* : Int */;
-short int var94 /* : Bool */;
-int cltype95;
-int idtype96;
-const char* var_class_name97;
-long var98 /* : Int */;
-val* var99 /* : Text */;
+short int var105 /* : Bool */;
+short int var107 /* : Bool */;
+int cltype108;
+int idtype109;
+const char* var_class_name110;
+short int var111 /* : Bool */;
+long var112 /* : Int */;
+short int var114 /* : Bool */;
+int cltype115;
+int idtype116;
+const char* var_class_name117;
+long var118 /* : Int */;
+val* var119 /* : Text */;
 val* var_p1 /* var p1: nullable Object */;
-long var100 /* : Int */;
-short int var102 /* : Bool */;
-int cltype103;
-int idtype104;
-const char* var_class_name105;
-long var106 /* : Int */;
-val* var107 /* : Text */;
+long var120 /* : Int */;
+short int var122 /* : Bool */;
+int cltype123;
+int idtype124;
+const char* var_class_name125;
+long var126 /* : Int */;
+val* var127 /* : Text */;
 val* var_p2 /* var p2: nullable Object */;
-static val* varonce108;
-val* var109 /* : String */;
-char* var110 /* : NativeString */;
-val* var111 /* : String */;
-static val* varonce112;
-val* var113 /* : String */;
-char* var114 /* : NativeString */;
-val* var115 /* : String */;
-long var116 /* : Int */;
-short int var118 /* : Bool */;
-int cltype119;
-int idtype120;
-const char* var_class_name121;
-long var122 /* : Int */;
-val* var123 /* : String */;
-val* var124 /* : String */;
-short int var125 /* : Bool */;
-short int var127 /* : Bool */;
-int cltype128;
-int idtype129;
-const char* var_class_name130;
-short int var131 /* : Bool */;
-static val* varonce132;
-val* var133 /* : String */;
-char* var134 /* : NativeString */;
-val* var135 /* : String */;
-val* var136 /* : String */;
-static val* varonce137;
-val* var138 /* : String */;
-char* var139 /* : NativeString */;
-val* var140 /* : String */;
-val* var141 /* : String */;
-val* var142 /* : String */;
+static val* varonce128;
+val* var129 /* : String */;
+char* var130 /* : CString */;
+val* var131 /* : String */;
+val* var132 /* : nullable Int */;
+val* var133 /* : nullable Int */;
+val* var134 /* : nullable Bool */;
+val* var135 /* : nullable Bool */;
+static val* varonce136;
+val* var137 /* : String */;
+char* var138 /* : CString */;
+val* var139 /* : String */;
+val* var140 /* : nullable Int */;
+val* var141 /* : nullable Int */;
+val* var142 /* : nullable Bool */;
+val* var143 /* : nullable Bool */;
+long var144 /* : Int */;
+short int var146 /* : Bool */;
+int cltype147;
+int idtype148;
+const char* var_class_name149;
+long var150 /* : Int */;
+val* var151 /* : Text */;
+val* var152 /* : Text */;
+short int var153 /* : Bool */;
+short int var155 /* : Bool */;
+int cltype156;
+int idtype157;
+const char* var_class_name158;
+short int var159 /* : Bool */;
+static val* varonce160;
+val* var161 /* : String */;
+char* var162 /* : CString */;
+val* var163 /* : String */;
+val* var164 /* : nullable Int */;
+val* var165 /* : nullable Int */;
+val* var166 /* : nullable Bool */;
+val* var167 /* : nullable Bool */;
+val* var168 /* : Text */;
+static val* varonce169;
+val* var170 /* : String */;
+char* var171 /* : CString */;
+val* var172 /* : String */;
+val* var173 /* : nullable Int */;
+val* var174 /* : nullable Int */;
+val* var175 /* : nullable Bool */;
+val* var176 /* : nullable Bool */;
+val* var177 /* : Text */;
+val* var178 /* : Text */;
 var_decimals = p0;
 {
-{ /* Inline math#Float#is_nan (self) on <self:Float> */
-var3 = math___Float_is_nan___impl(self);
+{ /* Inline math$Float$is_nan (self) on <self:Float> */
+var3 = core__math___Float_is_nan___impl(self);
 var1 = var3;
 goto RET_LABEL2;
 RET_LABEL2:(void)0;
@@ -6168,7 +7454,11 @@ if (likely(varonce!=NULL)) {
 var4 = varonce;
 } else {
 var5 = "nan";
-var6 = core__flat___NativeString___to_s_full(var5, 3l, 3l);
+var7 = (val*)(3l<<2|1);
+var8 = (val*)(3l<<2|1);
+var9 = (val*)((long)(0)<<2|3);
+var10 = (val*)((long)(0)<<2|3);
+var6 = core__flat___CString___to_s_unsafe(var5, var7, var8, var9, var10);
 var4 = var6;
 varonce = var4;
 }
@@ -6177,80 +7467,88 @@ goto RET_LABEL;
 } else {
 }
 {
-var7 = core__math___Float___is_inf(self);
+var11 = core__math___Float___is_inf(self);
 }
-var_isinf = var7;
+var_isinf = var11;
 {
-{ /* Inline kernel#Int#== (var_isinf,1l) on <var_isinf:Int> */
-var10 = var_isinf == 1l;
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+{ /* Inline kernel$Int$== (var_isinf,1l) on <var_isinf:Int> */
+var14 = var_isinf == 1l;
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-if (var8){
-if (likely(varonce11!=NULL)) {
-var12 = varonce11;
-} else {
-var13 = "inf";
-var14 = core__flat___NativeString___to_s_full(var13, 3l, 3l);
-var12 = var14;
-varonce11 = var12;
+if (var12){
+if (likely(varonce15!=NULL)) {
+var16 = varonce15;
+} else {
+var17 = "inf";
+var19 = (val*)(3l<<2|1);
+var20 = (val*)(3l<<2|1);
+var21 = (val*)((long)(0)<<2|3);
+var22 = (val*)((long)(0)<<2|3);
+var18 = core__flat___CString___to_s_unsafe(var17, var19, var20, var21, var22);
+var16 = var18;
+varonce15 = var16;
 }
-var = var12;
+var = var16;
 goto RET_LABEL;
 } else {
 {
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
-var17 = -1l;
-var15 = var17;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
+{ /* Inline kernel$Int$unary - (1l) on <1l:Int> */
+var25 = -1l;
+var23 = var25;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#== (var_isinf,var15) on <var_isinf:Int> */
-var20 = var_isinf == var15;
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+{ /* Inline kernel$Int$== (var_isinf,var23) on <var_isinf:Int> */
+var28 = var_isinf == var23;
+var26 = var28;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
 }
 }
-if (var18){
-if (likely(varonce21!=NULL)) {
-var22 = varonce21;
-} else {
-var23 = "-inf";
-var24 = core__flat___NativeString___to_s_full(var23, 4l, 4l);
-var22 = var24;
-varonce21 = var22;
+if (var26){
+if (likely(varonce29!=NULL)) {
+var30 = varonce29;
+} else {
+var31 = "-inf";
+var33 = (val*)(4l<<2|1);
+var34 = (val*)(4l<<2|1);
+var35 = (val*)((long)(0)<<2|3);
+var36 = (val*)((long)(0)<<2|3);
+var32 = core__flat___CString___to_s_unsafe(var31, var33, var34, var35, var36);
+var30 = var32;
+varonce29 = var30;
 }
-var = var22;
+var = var30;
 goto RET_LABEL;
 } else {
 }
 }
 {
-{ /* Inline kernel#Int#== (var_decimals,0l) on <var_decimals:Int> */
-var27 = var_decimals == 0l;
-var25 = var27;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+{ /* Inline kernel$Int$== (var_decimals,0l) on <var_decimals:Int> */
+var39 = var_decimals == 0l;
+var37 = var39;
+goto RET_LABEL38;
+RET_LABEL38:(void)0;
 }
 }
-if (var25){
+if (var37){
 {
-{ /* Inline kernel#Float#to_i (self) on <self:Float> */
-var30 = (long)self;
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+{ /* Inline kernel$Float$to_i (self) on <self:Float> */
+var42 = (long)self;
+var40 = var42;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
 }
 {
-var31 = core__flat___Int___core__abstract_text__Object__to_s(var28);
+var43 = core__flat___Int___core__abstract_text__Object__to_s(var40);
 }
-var = var31;
+var = var43;
 goto RET_LABEL;
 } else {
 }
@@ -6259,316 +7557,340 @@ var_i = 0l;
 var_ = var_decimals;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var_) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
-var34 = 1; /* easy <var_:Int> isa OTHER*/
-if (unlikely(!var34)) {
+var46 = 1; /* easy <var_:Int> isa OTHER*/
+if (unlikely(!var46)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var35 = var_i < var_;
-var32 = var35;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+var47 = var_i < var_;
+var44 = var47;
+goto RET_LABEL45;
+RET_LABEL45:(void)0;
 }
 }
-if (var32){
+if (var44){
 } else {
 goto BREAK_label;
 }
 {
-{ /* Inline kernel#Float#* (var_f,10.0) on <var_f:Float> */
+{ /* Inline kernel$Float$* (var_f,10.0) on <var_f:Float> */
 /* Covariant cast for argument 0 (i) <10.0:Float> isa OTHER */
 /* <10.0:Float> isa OTHER */
-var38 = 1; /* easy <10.0:Float> isa OTHER*/
-if (unlikely(!var38)) {
-var_class_name41 = type_core__Float.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
+var50 = 1; /* easy <10.0:Float> isa OTHER*/
+if (unlikely(!var50)) {
+var_class_name53 = type_core__Float.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 537);
 fatal_exit(1);
 }
-var42 = var_f * 10.0;
-var36 = var42;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
+var54 = var_f * 10.0;
+var48 = var54;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
-var_f = var36;
+var_f = var48;
 {
-var43 = core___core__Int___Discrete__successor(var_i, 1l);
+var55 = core___core__Int___Discrete__successor(var_i, 1l);
 }
-var_i = var43;
+var_i = var55;
 }
 BREAK_label: (void)0;
 {
-{ /* Inline kernel#Float#> (self,0.0) on <self:Float> */
+{ /* Inline kernel$Float$> (self,0.0) on <self:Float> */
 /* Covariant cast for argument 0 (i) <0.0:Float> isa OTHER */
 /* <0.0:Float> isa OTHER */
-var46 = 1; /* easy <0.0:Float> isa OTHER*/
-if (unlikely(!var46)) {
-var_class_name49 = type_core__Float.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
+var58 = 1; /* easy <0.0:Float> isa OTHER*/
+if (unlikely(!var58)) {
+var_class_name61 = type_core__Float.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name61);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 532);
 fatal_exit(1);
 }
-var50 = self > 0.0;
-var44 = var50;
-goto RET_LABEL45;
-RET_LABEL45:(void)0;
+var62 = self > 0.0;
+var56 = var62;
+goto RET_LABEL57;
+RET_LABEL57:(void)0;
 }
 }
-if (var44){
+if (var56){
 {
-{ /* Inline kernel#Float#+ (var_f,0.5) on <var_f:Float> */
+{ /* Inline kernel$Float$+ (var_f,0.5) on <var_f:Float> */
 /* Covariant cast for argument 0 (i) <0.5:Float> isa OTHER */
 /* <0.5:Float> isa OTHER */
-var53 = 1; /* easy <0.5:Float> isa OTHER*/
-if (unlikely(!var53)) {
-var_class_name56 = type_core__Float.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name56);
+var65 = 1; /* easy <0.5:Float> isa OTHER*/
+if (unlikely(!var65)) {
+var_class_name68 = type_core__Float.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name68);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 534);
 fatal_exit(1);
 }
-var57 = var_f + 0.5;
-var51 = var57;
-goto RET_LABEL52;
-RET_LABEL52:(void)0;
+var69 = var_f + 0.5;
+var63 = var69;
+goto RET_LABEL64;
+RET_LABEL64:(void)0;
 }
 }
-var_f = var51;
+var_f = var63;
 } else {
 {
-{ /* Inline kernel#Float#- (var_f,0.5) on <var_f:Float> */
+{ /* Inline kernel$Float$- (var_f,0.5) on <var_f:Float> */
 /* Covariant cast for argument 0 (i) <0.5:Float> isa OTHER */
 /* <0.5:Float> isa OTHER */
-var60 = 1; /* easy <0.5:Float> isa OTHER*/
-if (unlikely(!var60)) {
-var_class_name63 = type_core__Float.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
+var72 = 1; /* easy <0.5:Float> isa OTHER*/
+if (unlikely(!var72)) {
+var_class_name75 = type_core__Float.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name75);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 536);
 fatal_exit(1);
 }
-var64 = var_f - 0.5;
-var58 = var64;
-goto RET_LABEL59;
-RET_LABEL59:(void)0;
+var76 = var_f - 0.5;
+var70 = var76;
+goto RET_LABEL71;
+RET_LABEL71:(void)0;
 }
 }
-var_f = var58;
+var_f = var70;
 }
 {
-{ /* Inline kernel#Float#to_i (var_f) on <var_f:Float> */
-var67 = (long)var_f;
-var65 = var67;
-goto RET_LABEL66;
-RET_LABEL66:(void)0;
+{ /* Inline kernel$Float$to_i (var_f) on <var_f:Float> */
+var79 = (long)var_f;
+var77 = var79;
+goto RET_LABEL78;
+RET_LABEL78:(void)0;
 }
 }
-var_i68 = var65;
+var_i80 = var77;
 {
-{ /* Inline kernel#Int#== (var_i68,0l) on <var_i68:Int> */
-var71 = var_i68 == 0l;
-var69 = var71;
-goto RET_LABEL70;
-RET_LABEL70:(void)0;
+{ /* Inline kernel$Int$== (var_i80,0l) on <var_i80:Int> */
+var83 = var_i80 == 0l;
+var81 = var83;
+goto RET_LABEL82;
+RET_LABEL82:(void)0;
 }
 }
-if (var69){
-if (likely(varonce72!=NULL)) {
-var73 = varonce72;
+if (var81){
+if (likely(varonce84!=NULL)) {
+var85 = varonce84;
 } else {
-var74 = "0.";
-var75 = core__flat___NativeString___to_s_full(var74, 2l, 2l);
-var73 = var75;
-varonce72 = var73;
+var86 = "0.";
+var88 = (val*)(2l<<2|1);
+var89 = (val*)(2l<<2|1);
+var90 = (val*)((long)(0)<<2|3);
+var91 = (val*)((long)(0)<<2|3);
+var87 = core__flat___CString___to_s_unsafe(var86, var88, var89, var90, var91);
+var85 = var87;
+varonce84 = var85;
 }
-if (likely(varonce76!=NULL)) {
-var77 = varonce76;
+if (likely(varonce92!=NULL)) {
+var93 = varonce92;
 } else {
-var78 = "0";
-var79 = core__flat___NativeString___to_s_full(var78, 1l, 1l);
-var77 = var79;
-varonce76 = var77;
+var94 = "0";
+var96 = (val*)(1l<<2|1);
+var97 = (val*)(1l<<2|1);
+var98 = (val*)((long)(0)<<2|3);
+var99 = (val*)((long)(0)<<2|3);
+var95 = core__flat___CString___to_s_unsafe(var94, var96, var97, var98, var99);
+var93 = var95;
+varonce92 = var93;
 }
 {
-var80 = ((val*(*)(val* self, long p0))(var77->class->vft[COLOR_core__abstract_text__String___42d]))(var77, var_decimals); /* * on <var77:String>*/
+var100 = ((val*(*)(val* self, long p0))(var93->class->vft[COLOR_core__abstract_text__Text___42d]))(var93, var_decimals); /* * on <var93:String>*/
 }
 {
-var81 = ((val*(*)(val* self, val* p0))(var73->class->vft[COLOR_core__abstract_text__String___43d]))(var73, var80); /* + on <var73:String>*/
+var101 = ((val*(*)(val* self, val* p0))(var85->class->vft[COLOR_core__abstract_text__Text___43d]))(var85, var100); /* + on <var85:String>*/
 }
-var = var81;
+var = var101;
 goto RET_LABEL;
 } else {
 }
 {
-var82 = core___core__Int___abs(var_i68);
+var102 = core___core__Int___abs(var_i80);
 }
 {
-var83 = core__flat___Int___core__abstract_text__Object__to_s(var82);
+var103 = core__flat___Int___core__abstract_text__Object__to_s(var102);
 }
-var_s = var83;
+var_s = var103;
 {
-var84 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__length]))(var_s); /* length on <var_s:String>*/
+var104 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__length]))(var_s); /* length on <var_s:String>*/
 }
-var_sl = var84;
+var_sl = var104;
 {
-{ /* Inline kernel#Int#> (var_sl,var_decimals) on <var_sl:Int> */
+{ /* Inline kernel$Int$> (var_sl,var_decimals) on <var_sl:Int> */
 /* Covariant cast for argument 0 (i) <var_decimals:Int> isa OTHER */
 /* <var_decimals:Int> isa OTHER */
-var87 = 1; /* easy <var_decimals:Int> isa OTHER*/
-if (unlikely(!var87)) {
-var_class_name90 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name90);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+var107 = 1; /* easy <var_decimals:Int> isa OTHER*/
+if (unlikely(!var107)) {
+var_class_name110 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name110);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
-var91 = var_sl > var_decimals;
-var85 = var91;
-goto RET_LABEL86;
-RET_LABEL86:(void)0;
+var111 = var_sl > var_decimals;
+var105 = var111;
+goto RET_LABEL106;
+RET_LABEL106:(void)0;
 }
 }
-if (var85){
+if (var105){
 {
-{ /* Inline kernel#Int#- (var_sl,var_decimals) on <var_sl:Int> */
+{ /* Inline kernel$Int$- (var_sl,var_decimals) on <var_sl:Int> */
 /* Covariant cast for argument 0 (i) <var_decimals:Int> isa OTHER */
 /* <var_decimals:Int> isa OTHER */
-var94 = 1; /* easy <var_decimals:Int> isa OTHER*/
-if (unlikely(!var94)) {
-var_class_name97 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name97);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var114 = 1; /* easy <var_decimals:Int> isa OTHER*/
+if (unlikely(!var114)) {
+var_class_name117 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name117);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var98 = var_sl - var_decimals;
-var92 = var98;
-goto RET_LABEL93;
-RET_LABEL93:(void)0;
+var118 = var_sl - var_decimals;
+var112 = var118;
+goto RET_LABEL113;
+RET_LABEL113:(void)0;
 }
 }
 {
-var99 = ((val*(*)(val* self, long p0, long p1))(var_s->class->vft[COLOR_core__abstract_text__Text__substring]))(var_s, 0l, var92); /* substring on <var_s:String>*/
+var119 = ((val*(*)(val* self, long p0, long p1))(var_s->class->vft[COLOR_core__abstract_text__Text__substring]))(var_s, 0l, var112); /* substring on <var_s:String>*/
 }
-var_p1 = var99;
+var_p1 = var119;
 {
-{ /* Inline kernel#Int#- (var_sl,var_decimals) on <var_sl:Int> */
+{ /* Inline kernel$Int$- (var_sl,var_decimals) on <var_sl:Int> */
 /* Covariant cast for argument 0 (i) <var_decimals:Int> isa OTHER */
 /* <var_decimals:Int> isa OTHER */
-var102 = 1; /* easy <var_decimals:Int> isa OTHER*/
-if (unlikely(!var102)) {
-var_class_name105 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name105);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var122 = 1; /* easy <var_decimals:Int> isa OTHER*/
+if (unlikely(!var122)) {
+var_class_name125 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name125);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var106 = var_sl - var_decimals;
-var100 = var106;
-goto RET_LABEL101;
-RET_LABEL101:(void)0;
+var126 = var_sl - var_decimals;
+var120 = var126;
+goto RET_LABEL121;
+RET_LABEL121:(void)0;
 }
 }
 {
-var107 = ((val*(*)(val* self, long p0, long p1))(var_s->class->vft[COLOR_core__abstract_text__Text__substring]))(var_s, var100, var_decimals); /* substring on <var_s:String>*/
+var127 = ((val*(*)(val* self, long p0, long p1))(var_s->class->vft[COLOR_core__abstract_text__Text__substring]))(var_s, var120, var_decimals); /* substring on <var_s:String>*/
 }
-var_p2 = var107;
+var_p2 = var127;
 } else {
-if (likely(varonce108!=NULL)) {
-var109 = varonce108;
+if (likely(varonce128!=NULL)) {
+var129 = varonce128;
 } else {
-var110 = "0";
-var111 = core__flat___NativeString___to_s_full(var110, 1l, 1l);
-var109 = var111;
-varonce108 = var109;
+var130 = "0";
+var132 = (val*)(1l<<2|1);
+var133 = (val*)(1l<<2|1);
+var134 = (val*)((long)(0)<<2|3);
+var135 = (val*)((long)(0)<<2|3);
+var131 = core__flat___CString___to_s_unsafe(var130, var132, var133, var134, var135);
+var129 = var131;
+varonce128 = var129;
 }
-var_p1 = var109;
-if (likely(varonce112!=NULL)) {
-var113 = varonce112;
+var_p1 = var129;
+if (likely(varonce136!=NULL)) {
+var137 = varonce136;
 } else {
-var114 = "0";
-var115 = core__flat___NativeString___to_s_full(var114, 1l, 1l);
-var113 = var115;
-varonce112 = var113;
+var138 = "0";
+var140 = (val*)(1l<<2|1);
+var141 = (val*)(1l<<2|1);
+var142 = (val*)((long)(0)<<2|3);
+var143 = (val*)((long)(0)<<2|3);
+var139 = core__flat___CString___to_s_unsafe(var138, var140, var141, var142, var143);
+var137 = var139;
+varonce136 = var137;
 }
 {
-{ /* Inline kernel#Int#- (var_decimals,var_sl) on <var_decimals:Int> */
+{ /* Inline kernel$Int$- (var_decimals,var_sl) on <var_decimals:Int> */
 /* Covariant cast for argument 0 (i) <var_sl:Int> isa OTHER */
 /* <var_sl:Int> isa OTHER */
-var118 = 1; /* easy <var_sl:Int> isa OTHER*/
-if (unlikely(!var118)) {
-var_class_name121 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name121);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var146 = 1; /* easy <var_sl:Int> isa OTHER*/
+if (unlikely(!var146)) {
+var_class_name149 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name149);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var122 = var_decimals - var_sl;
-var116 = var122;
-goto RET_LABEL117;
-RET_LABEL117:(void)0;
+var150 = var_decimals - var_sl;
+var144 = var150;
+goto RET_LABEL145;
+RET_LABEL145:(void)0;
 }
 }
 {
-var123 = ((val*(*)(val* self, long p0))(var113->class->vft[COLOR_core__abstract_text__String___42d]))(var113, var116); /* * on <var113:String>*/
+var151 = ((val*(*)(val* self, long p0))(var137->class->vft[COLOR_core__abstract_text__Text___42d]))(var137, var144); /* * on <var137:String>*/
 }
 {
-var124 = ((val*(*)(val* self, val* p0))(var123->class->vft[COLOR_core__abstract_text__String___43d]))(var123, var_s); /* + on <var123:String>*/
+var152 = ((val*(*)(val* self, val* p0))(var151->class->vft[COLOR_core__abstract_text__Text___43d]))(var151, var_s); /* + on <var151:Text(String)>*/
 }
-var_p2 = var124;
+var_p2 = var152;
 }
 {
-{ /* Inline kernel#Int#< (var_i68,0l) on <var_i68:Int> */
+{ /* Inline kernel$Int$< (var_i80,0l) on <var_i80:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
-var127 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var127)) {
-var_class_name130 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name130);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+var155 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var155)) {
+var_class_name158 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name158);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var131 = var_i68 < 0l;
-var125 = var131;
-goto RET_LABEL126;
-RET_LABEL126:(void)0;
+var159 = var_i80 < 0l;
+var153 = var159;
+goto RET_LABEL154;
+RET_LABEL154:(void)0;
 }
 }
-if (var125){
-if (likely(varonce132!=NULL)) {
-var133 = varonce132;
+if (var153){
+if (likely(varonce160!=NULL)) {
+var161 = varonce160;
 } else {
-var134 = "-";
-var135 = core__flat___NativeString___to_s_full(var134, 1l, 1l);
-var133 = var135;
-varonce132 = var133;
+var162 = "-";
+var164 = (val*)(1l<<2|1);
+var165 = (val*)(1l<<2|1);
+var166 = (val*)((long)(0)<<2|3);
+var167 = (val*)((long)(0)<<2|3);
+var163 = core__flat___CString___to_s_unsafe(var162, var164, var165, var166, var167);
+var161 = var163;
+varonce160 = var161;
 }
 {
-var136 = ((val*(*)(val* self, val* p0))(var133->class->vft[COLOR_core__abstract_text__String___43d]))(var133, var_p1); /* + on <var133:String>*/
+var168 = ((val*(*)(val* self, val* p0))(var161->class->vft[COLOR_core__abstract_text__Text___43d]))(var161, var_p1); /* + on <var161:String>*/
 }
-var_p1 = var136;
+var_p1 = var168;
 } else {
 }
-if (likely(varonce137!=NULL)) {
-var138 = varonce137;
+if (likely(varonce169!=NULL)) {
+var170 = varonce169;
 } else {
-var139 = ".";
-var140 = core__flat___NativeString___to_s_full(var139, 1l, 1l);
-var138 = var140;
-varonce137 = var138;
+var171 = ".";
+var173 = (val*)(1l<<2|1);
+var174 = (val*)(1l<<2|1);
+var175 = (val*)((long)(0)<<2|3);
+var176 = (val*)((long)(0)<<2|3);
+var172 = core__flat___CString___to_s_unsafe(var171, var173, var174, var175, var176);
+var170 = var172;
+varonce169 = var170;
 }
 {
-var141 = ((val*(*)(val* self, val* p0))(var_p1->class->vft[COLOR_core__abstract_text__String___43d]))(var_p1, var138); /* + on <var_p1:nullable Object(String)>*/
+var177 = ((val*(*)(val* self, val* p0))(var_p1->class->vft[COLOR_core__abstract_text__Text___43d]))(var_p1, var170); /* + on <var_p1:nullable Object(String)>*/
 }
 {
-var142 = ((val*(*)(val* self, val* p0))(var141->class->vft[COLOR_core__abstract_text__String___43d]))(var141, var_p2); /* + on <var141:String>*/
+var178 = ((val*(*)(val* self, val* p0))(var177->class->vft[COLOR_core__abstract_text__Text___43d]))(var177, var_p2); /* + on <var177:Text(String)>*/
 }
-var = var142;
+var = var178;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Char#u8char_len for (self: Char): Int */
+/* method abstract_text$Char$u8char_len for (self: Char): Int */
 long core__abstract_text___Char___u8char_len(uint32_t self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -6599,7 +7921,7 @@ int idtype26;
 const char* var_class_name27;
 short int var28 /* : Bool */;
 {
-{ /* Inline kernel#Char#code_point (self) on <self:Char> */
+{ /* Inline kernel$Char$code_point (self) on <self:Char> */
 var3 = (long)self;
 var1 = var3;
 goto RET_LABEL2;
@@ -6608,14 +7930,14 @@ RET_LABEL2:(void)0;
 }
 var_c = var1;
 {
-{ /* Inline kernel#Int#< (var_c,128l) on <var_c:Int> */
+{ /* Inline kernel$Int$< (var_c,128l) on <var_c:Int> */
 /* Covariant cast for argument 0 (i) <128l:Int> isa OTHER */
 /* <128l:Int> isa OTHER */
 var6 = 1; /* easy <128l:Int> isa OTHER*/
 if (unlikely(!var6)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var7 = var_c < 128l;
@@ -6630,14 +7952,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#<= (var_c,2047l) on <var_c:Int> */
+{ /* Inline kernel$Int$<= (var_c,2047l) on <var_c:Int> */
 /* Covariant cast for argument 0 (i) <2047l:Int> isa OTHER */
 /* <2047l:Int> isa OTHER */
 var10 = 1; /* easy <2047l:Int> isa OTHER*/
 if (unlikely(!var10)) {
 var_class_name13 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
 fatal_exit(1);
 }
 var14 = var_c <= 2047l;
@@ -6652,14 +7974,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#<= (var_c,65535l) on <var_c:Int> */
+{ /* Inline kernel$Int$<= (var_c,65535l) on <var_c:Int> */
 /* Covariant cast for argument 0 (i) <65535l:Int> isa OTHER */
 /* <65535l:Int> isa OTHER */
 var17 = 1; /* easy <65535l:Int> isa OTHER*/
 if (unlikely(!var17)) {
 var_class_name20 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
 fatal_exit(1);
 }
 var21 = var_c <= 65535l;
@@ -6674,14 +7996,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#<= (var_c,1114111l) on <var_c:Int> */
+{ /* Inline kernel$Int$<= (var_c,1114111l) on <var_c:Int> */
 /* Covariant cast for argument 0 (i) <1114111l:Int> isa OTHER */
 /* <1114111l:Int> isa OTHER */
 var24 = 1; /* easy <1114111l:Int> isa OTHER*/
 if (unlikely(!var24)) {
 var_class_name27 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
 fatal_exit(1);
 }
 var28 = var_c <= 1114111l;
@@ -6700,70 +8022,84 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Char#to_s for (self: Char): String */
+/* method abstract_text$Char$to_s for (self: Char): String */
 val* core__abstract_text___Char___Object__to_s(uint32_t self) {
 val* var /* : String */;
 long var1 /* : Int */;
 long var_ln /* var ln: Int */;
-char* var2 /* : NativeString */;
-long var3 /* : Int */;
-short int var5 /* : Bool */;
+static char* varoncenew;
+static int varoncenew_guard;
+char* var2 /* : CString */;
+char* var3 /* : CString */;
+long var4 /* : Int */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var6 /* : Int */;
-char* var7 /* : NativeString */;
-char* var9 /* : NativeString */;
-char* var_ns /* var ns: NativeString */;
-val* var11 /* : String */;
-val* var12 /* : nullable Int */;
+long var7 /* : Int */;
+char* var8 /* : CString */;
+char* var10 /* : CString */;
+char* var_ns /* var ns: CString */;
+val* var12 /* : String */;
+val* var13 /* : nullable Int */;
+val* var14 /* : nullable Bool */;
+val* var15 /* : nullable Bool */;
 {
 var1 = core__abstract_text___Char___u8char_len(self);
 }
 var_ln = var1;
-var2 = NULL/*special!*/;
+if (likely(varoncenew_guard)) {
+var2 = varoncenew;
+} else {
+var3 = NULL/*special!*/;
+var2 = var3;
+varoncenew = var2;
+varoncenew_guard = 1;
+}
 {
-{ /* Inline kernel#Int#+ (var_ln,1l) on <var_ln:Int> */
+{ /* Inline kernel$Int$+ (var_ln,1l) on <var_ln: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)) {
+var6 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var6)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var6 = var_ln + 1l;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+var7 = var_ln + 1l;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline native#NativeString#new (var2,var3) on <var2:NativeString> */
-var9 = (char*)nit_alloc(var3);
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+{ /* Inline native$CString$new (var2,var4) on <var2:CString> */
+var10 = (char*)nit_alloc(var4);
+var8 = var10;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
-var_ns = var7;
+var_ns = var8;
 {
-{ /* Inline abstract_text#Char#u8char_tos (self,var_ns,var_ln) on <self:Char> */
-abstract_text___Char_u8char_tos___impl(self, var_ns, var_ln);
-RET_LABEL10:(void)0;
+{ /* Inline abstract_text$Char$u8char_tos (self,var_ns,var_ln) on <self:Char> */
+core__abstract_text___Char_u8char_tos___impl(self, var_ns, var_ln);
+RET_LABEL11:(void)0;
 }
 }
 {
-var12 = (val*)(var_ln<<2|1);
-var11 = core__flat___NativeString___to_s_unsafe(var_ns, var12);
+var13 = (val*)(var_ln<<2|1);
+var14 = (val*)((long)(0)<<2|3);
+var15 = (val*)((long)(0)<<2|3);
+var12 = core__flat___CString___to_s_unsafe(var_ns, var13, ((val*)NULL), var14, var15);
 }
-var = var11;
+var = var12;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Char#to_s for (self: Object): String */
+/* method abstract_text$Char$to_s for (self: Object): String */
 val* VIRTUAL_core__abstract_text___Char___Object__to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
@@ -6774,12 +8110,12 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Char#u8char_tos for (self: Char, NativeString, Int) */
+/* method abstract_text$Char$u8char_tos for (self: Char, CString, Int) */
 void core__abstract_text___Char___u8char_tos(uint32_t self, char* p0, long p1) {
-abstract_text___Char_u8char_tos___impl(self, p0, p1);
+core__abstract_text___Char_u8char_tos___impl(self, p0, p1);
 RET_LABEL:;
 }
-/* method abstract_text#Char#is_numeric for (self: Char): Bool */
+/* method abstract_text$Char$is_numeric for (self: Char): Bool */
 short int core__abstract_text___Char___is_numeric(uint32_t self) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -6797,14 +8133,14 @@ int idtype10;
 const char* var_class_name11;
 short int var12 /* : Bool */;
 {
-{ /* Inline kernel#Char#>= (self,'0') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'0') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
 var4 = 1; /* easy <'0':Char> isa OTHER*/
 if (unlikely(!var4)) {
 var_class_name = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var5 = self >= '0';
@@ -6816,14 +8152,14 @@ RET_LABEL3:(void)0;
 var_ = var2;
 if (var2){
 {
-{ /* Inline kernel#Char#<= (self,'9') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'9') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
 /* <'9':Char> isa OTHER */
 var8 = 1; /* easy <'9':Char> isa OTHER*/
 if (unlikely(!var8)) {
 var_class_name11 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name11);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var12 = self <= '9';
@@ -6841,7 +8177,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Char#is_hexdigit for (self: Char): Bool */
+/* method abstract_text$Char$is_hexdigit for (self: Char): Bool */
 short int core__abstract_text___Char___is_hexdigit(uint32_t self) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -6891,14 +8227,14 @@ int idtype46;
 const char* var_class_name47;
 short int var48 /* : Bool */;
 {
-{ /* Inline kernel#Char#>= (self,'0') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'0') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
 var6 = 1; /* easy <'0':Char> isa OTHER*/
 if (unlikely(!var6)) {
 var_class_name = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var7 = self >= '0';
@@ -6910,14 +8246,14 @@ RET_LABEL5:(void)0;
 var_ = var4;
 if (var4){
 {
-{ /* Inline kernel#Char#<= (self,'9') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'9') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
 /* <'9':Char> isa OTHER */
 var10 = 1; /* easy <'9':Char> isa OTHER*/
 if (unlikely(!var10)) {
 var_class_name13 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var14 = self <= '9';
@@ -6935,14 +8271,14 @@ if (var3){
 var2 = var_15;
 } else {
 {
-{ /* Inline kernel#Char#>= (self,'A') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'A') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'A':Char> isa OTHER */
 /* <'A':Char> isa OTHER */
 var19 = 1; /* easy <'A':Char> isa OTHER*/
 if (unlikely(!var19)) {
 var_class_name22 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name22);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var23 = self >= 'A';
@@ -6954,14 +8290,14 @@ RET_LABEL18:(void)0;
 var_24 = var17;
 if (var17){
 {
-{ /* Inline kernel#Char#<= (self,'F') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'F') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'F':Char> isa OTHER */
 /* <'F':Char> isa OTHER */
 var27 = 1; /* easy <'F':Char> isa OTHER*/
 if (unlikely(!var27)) {
 var_class_name30 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name30);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var31 = self <= 'F';
@@ -6981,14 +8317,14 @@ if (var2){
 var1 = var_32;
 } else {
 {
-{ /* Inline kernel#Char#>= (self,'a') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'a') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'a':Char> isa OTHER */
 /* <'a':Char> isa OTHER */
 var36 = 1; /* easy <'a':Char> isa OTHER*/
 if (unlikely(!var36)) {
 var_class_name39 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var40 = self >= 'a';
@@ -7000,14 +8336,14 @@ RET_LABEL35:(void)0;
 var_41 = var34;
 if (var34){
 {
-{ /* Inline kernel#Char#<= (self,'f') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'f') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'f':Char> isa OTHER */
 /* <'f':Char> isa OTHER */
 var44 = 1; /* easy <'f':Char> isa OTHER*/
 if (unlikely(!var44)) {
 var_class_name47 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var48 = self <= 'f';
@@ -7027,7 +8363,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Char#from_hex for (self: Char): Int */
+/* method abstract_text$Char$from_hex for (self: Char): Int */
 long core__abstract_text___Char___from_hex(uint32_t self) {
 long var /* : Int */;
 short int var1 /* : Bool */;
@@ -7098,14 +8434,14 @@ const char* var_class_name73;
 long var74 /* : Int */;
 short int var75 /* : Bool */;
 {
-{ /* Inline kernel#Char#>= (self,'0') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'0') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'0':Char> isa OTHER */
 /* <'0':Char> isa OTHER */
 var4 = 1; /* easy <'0':Char> isa OTHER*/
 if (unlikely(!var4)) {
 var_class_name = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var5 = self >= '0';
@@ -7117,14 +8453,14 @@ RET_LABEL3:(void)0;
 var_ = var2;
 if (var2){
 {
-{ /* Inline kernel#Char#<= (self,'9') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'9') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'9':Char> isa OTHER */
 /* <'9':Char> isa OTHER */
 var8 = 1; /* easy <'9':Char> isa OTHER*/
 if (unlikely(!var8)) {
 var_class_name11 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name11);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var12 = self <= '9';
@@ -7139,7 +8475,7 @@ var1 = var_;
 }
 if (var1){
 {
-{ /* Inline kernel#Char#code_point (self) on <self:Char> */
+{ /* Inline kernel$Char$code_point (self) on <self:Char> */
 var15 = (long)self;
 var13 = var15;
 goto RET_LABEL14;
@@ -7147,14 +8483,14 @@ RET_LABEL14:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var13,48l) on <var13:Int> */
+{ /* Inline kernel$Int$- (var13,48l) on <var13:Int> */
 /* Covariant cast for argument 0 (i) <48l:Int> isa OTHER */
 /* <48l:Int> isa OTHER */
 var18 = 1; /* easy <48l:Int> isa OTHER*/
 if (unlikely(!var18)) {
 var_class_name21 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var22 = var13 - 48l;
@@ -7168,14 +8504,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Char#>= (self,'A') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'A') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'A':Char> isa OTHER */
 /* <'A':Char> isa OTHER */
 var26 = 1; /* easy <'A':Char> isa OTHER*/
 if (unlikely(!var26)) {
 var_class_name29 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var30 = self >= 'A';
@@ -7187,14 +8523,14 @@ RET_LABEL25:(void)0;
 var_31 = var24;
 if (var24){
 {
-{ /* Inline kernel#Char#<= (self,'F') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'F') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'F':Char> isa OTHER */
 /* <'F':Char> isa OTHER */
 var34 = 1; /* easy <'F':Char> isa OTHER*/
 if (unlikely(!var34)) {
 var_class_name37 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var38 = self <= 'F';
@@ -7209,7 +8545,7 @@ var23 = var_31;
 }
 if (var23){
 {
-{ /* Inline kernel#Char#code_point (self) on <self:Char> */
+{ /* Inline kernel$Char$code_point (self) on <self:Char> */
 var41 = (long)self;
 var39 = var41;
 goto RET_LABEL40;
@@ -7217,14 +8553,14 @@ RET_LABEL40:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var39,55l) on <var39:Int> */
+{ /* Inline kernel$Int$- (var39,55l) on <var39:Int> */
 /* Covariant cast for argument 0 (i) <55l:Int> isa OTHER */
 /* <55l:Int> isa OTHER */
 var44 = 1; /* easy <55l:Int> isa OTHER*/
 if (unlikely(!var44)) {
 var_class_name47 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var48 = var39 - 55l;
@@ -7238,14 +8574,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Char#>= (self,'a') on <self:Char> */
+{ /* Inline kernel$Char$>= (self,'a') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'a':Char> isa OTHER */
 /* <'a':Char> isa OTHER */
 var52 = 1; /* easy <'a':Char> isa OTHER*/
 if (unlikely(!var52)) {
 var_class_name55 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 924);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 915);
 fatal_exit(1);
 }
 var56 = self >= 'a';
@@ -7257,14 +8593,14 @@ RET_LABEL51:(void)0;
 var_57 = var50;
 if (var50){
 {
-{ /* Inline kernel#Char#<= (self,'f') on <self:Char> */
+{ /* Inline kernel$Char$<= (self,'f') on <self:Char> */
 /* Covariant cast for argument 0 (i) <'f':Char> isa OTHER */
 /* <'f':Char> isa OTHER */
 var60 = 1; /* easy <'f':Char> isa OTHER*/
 if (unlikely(!var60)) {
 var_class_name63 = type_core__Char.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name63);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 913);
 fatal_exit(1);
 }
 var64 = self <= 'f';
@@ -7279,7 +8615,7 @@ var49 = var_57;
 }
 if (var49){
 {
-{ /* Inline kernel#Char#code_point (self) on <self:Char> */
+{ /* Inline kernel$Char$code_point (self) on <self:Char> */
 var67 = (long)self;
 var65 = var67;
 goto RET_LABEL66;
@@ -7287,14 +8623,14 @@ RET_LABEL66:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var65,87l) on <var65:Int> */
+{ /* Inline kernel$Int$- (var65,87l) on <var65:Int> */
 /* Covariant cast for argument 0 (i) <87l:Int> isa OTHER */
 /* <87l:Int> isa OTHER */
 var70 = 1; /* easy <87l:Int> isa OTHER*/
 if (unlikely(!var70)) {
 var_class_name73 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name73);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var74 = var65 - 87l;
@@ -7311,175 +8647,231 @@ goto RET_LABEL;
 var75 = core__abstract_text___Char___is_hexdigit(self);
 }
 if (unlikely(!var75)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1836);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2116);
 fatal_exit(1);
 }
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Aborted");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1838);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2118);
 fatal_exit(1);
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Collection#to_s for (self: Collection[nullable Object]): String */
+/* method abstract_text$Collection$to_s for (self: Collection[nullable Object]): String */
 val* core__abstract_text___Collection___Object__to_s(val* self) {
 val* var /* : String */;
 static val* varonce;
 val* var1 /* : String */;
-char* var2 /* : NativeString */;
+char* var2 /* : CString */;
 val* var3 /* : String */;
-static val* varonce4;
-val* var5 /* : String */;
-char* var6 /* : NativeString */;
-val* var7 /* : String */;
-val* var8 /* : String */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable Bool */;
+static val* varonce8;
 val* var9 /* : String */;
-static val* varonce10;
+char* var10 /* : CString */;
 val* var11 /* : String */;
-char* var12 /* : NativeString */;
-val* var13 /* : String */;
-val* var14 /* : String */;
+val* var12 /* : nullable Int */;
+val* var13 /* : nullable Int */;
+val* var14 /* : nullable Bool */;
+val* var15 /* : nullable Bool */;
+val* var16 /* : String */;
+val* var17 /* : Text */;
+static val* varonce18;
+val* var19 /* : String */;
+char* var20 /* : CString */;
+val* var21 /* : String */;
+val* var22 /* : nullable Int */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Bool */;
+val* var25 /* : nullable Bool */;
+val* var26 /* : Text */;
 if (likely(varonce!=NULL)) {
 var1 = varonce;
 } else {
 var2 = "[";
-var3 = core__flat___NativeString___to_s_full(var2, 1l, 1l);
+var4 = (val*)(1l<<2|1);
+var5 = (val*)(1l<<2|1);
+var6 = (val*)((long)(0)<<2|3);
+var7 = (val*)((long)(0)<<2|3);
+var3 = core__flat___CString___to_s_unsafe(var2, var4, var5, var6, var7);
 var1 = var3;
 varonce = var1;
 }
-if (likely(varonce4!=NULL)) {
-var5 = varonce4;
+if (likely(varonce8!=NULL)) {
+var9 = varonce8;
 } else {
-var6 = ",";
-var7 = core__flat___NativeString___to_s_full(var6, 1l, 1l);
-var5 = var7;
-varonce4 = var5;
+var10 = ",";
+var12 = (val*)(1l<<2|1);
+var13 = (val*)(1l<<2|1);
+var14 = (val*)((long)(0)<<2|3);
+var15 = (val*)((long)(0)<<2|3);
+var11 = core__flat___CString___to_s_unsafe(var10, var12, var13, var14, var15);
+var9 = var11;
+varonce8 = var9;
 }
 {
-var8 = core__abstract_text___Collection___join(self, var5);
+var16 = core__abstract_text___Collection___join(self, var9, ((val*)NULL));
 }
 {
-var9 = ((val*(*)(val* self, val* p0))(var1->class->vft[COLOR_core__abstract_text__String___43d]))(var1, var8); /* + on <var1:String>*/
+var17 = ((val*(*)(val* self, val* p0))(var1->class->vft[COLOR_core__abstract_text__Text___43d]))(var1, var16); /* + on <var1:String>*/
 }
-if (likely(varonce10!=NULL)) {
-var11 = varonce10;
+if (likely(varonce18!=NULL)) {
+var19 = varonce18;
 } else {
-var12 = "]";
-var13 = core__flat___NativeString___to_s_full(var12, 1l, 1l);
-var11 = var13;
-varonce10 = var11;
+var20 = "]";
+var22 = (val*)(1l<<2|1);
+var23 = (val*)(1l<<2|1);
+var24 = (val*)((long)(0)<<2|3);
+var25 = (val*)((long)(0)<<2|3);
+var21 = core__flat___CString___to_s_unsafe(var20, var22, var23, var24, var25);
+var19 = var21;
+varonce18 = var19;
 }
 {
-var14 = ((val*(*)(val* self, val* p0))(var9->class->vft[COLOR_core__abstract_text__String___43d]))(var9, var11); /* + on <var9:String>*/
+var26 = ((val*(*)(val* self, val* p0))(var17->class->vft[COLOR_core__abstract_text__Text___43d]))(var17, var19); /* + on <var17:Text(String)>*/
 }
-var = var14;
+var = var26;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Collection#plain_to_s for (self: Collection[nullable Object]): String */
+/* method abstract_text$Collection$plain_to_s for (self: Collection[nullable Object]): String */
 val* core__abstract_text___Collection___plain_to_s(val* self) {
 val* var /* : String */;
+static val* varoncenew;
+static int varoncenew_guard;
 val* var1 /* : Buffer */;
 val* var2 /* : Buffer */;
+val* var3 /* : Buffer */;
 val* var_s /* var s: Buffer */;
 val* var_ /* var : Collection[nullable Object] */;
-val* var3 /* : Iterator[nullable Object] */;
-val* var_4 /* var : Iterator[nullable Object] */;
-short int var5 /* : Bool */;
-val* var6 /* : nullable Object */;
+val* var4 /* : Iterator[nullable Object] */;
+val* var_5 /* var : Iterator[nullable Object] */;
+short int var6 /* : Bool */;
+val* var7 /* : nullable Object */;
 val* var_e /* var e: nullable Object */;
-short int var7 /* : Bool */;
 short int var8 /* : Bool */;
-val* var9 /* : String */;
+short int var9 /* : Bool */;
 val* var10 /* : String */;
-var1 = NEW_core__Buffer(&type_core__Buffer);
+val* var11 /* : String */;
+if (likely(varoncenew_guard)) {
+var1 = varoncenew;
+} else {
+var2 = NEW_core__Buffer(&type_core__Buffer);
+var1 = var2;
+varoncenew = var1;
+varoncenew_guard = 1;
+}
 {
-var2 = core__flat___Buffer___new(var1);
+var3 = core__flat___Buffer___new(var1);
 }
-var_s = var2;
+var_s = var3;
 var_ = self;
 {
-var3 = ((val*(*)(val* self))((((long)var_&3)?class_info[((long)var_&3)]:var_->class)->vft[COLOR_core__abstract_collection__Collection__iterator]))(var_); /* iterator on <var_:Collection[nullable Object]>*/
+var4 = ((val*(*)(val* self))((((long)var_&3)?class_info[((long)var_&3)]:var_->class)->vft[COLOR_core__abstract_collection__Collection__iterator]))(var_); /* iterator on <var_:Collection[nullable Object]>*/
 }
-var_4 = var3;
+var_5 = var4;
 for(;;) {
 {
-var5 = ((short int(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_4); /* is_ok on <var_4:Iterator[nullable Object]>*/
+var6 = ((short int(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_5); /* is_ok on <var_5:Iterator[nullable Object]>*/
 }
-if (var5){
+if (var6){
 } else {
 goto BREAK_label;
 }
 {
-var6 = ((val*(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_4); /* item on <var_4:Iterator[nullable Object]>*/
+var7 = ((val*(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_5); /* item on <var_5:Iterator[nullable Object]>*/
 }
-var_e = var6;
+var_e = var7;
 if (var_e == NULL) {
-var7 = 0; /* is null */
+var8 = 0; /* is null */
 } else {
-var7 = 1; /* arg is null and recv is not */
+var8 = 1; /* arg is null and recv is not */
 }
 if (0) {
-var8 = ((short int(*)(val* self, val* p0))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__kernel__Object___33d_61d]))(var_e, ((val*)NULL)); /* != on <var_e:nullable Object>*/
-var7 = var8;
+var9 = ((short int(*)(val* self, val* p0))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__kernel__Object___33d_61d]))(var_e, ((val*)NULL)); /* != on <var_e:nullable Object>*/
+var8 = var9;
 }
-if (var7){
+if (var8){
 {
-var9 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_e); /* to_s on <var_e:nullable Object(Object)>*/
+var10 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_e); /* to_s on <var_e:nullable Object(Object)>*/
 }
 {
-((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var9); /* append on <var_s:Buffer>*/
+((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var10); /* append on <var_s:Buffer>*/
 }
 } else {
 }
 {
-((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_4); /* next on <var_4:Iterator[nullable Object]>*/
+((void(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_5); /* next on <var_5:Iterator[nullable Object]>*/
 }
 }
 BREAK_label: (void)0;
 {
-((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_4); /* finish on <var_4:Iterator[nullable Object]>*/
+((void(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_5); /* finish on <var_5:Iterator[nullable Object]>*/
 }
 {
-var10 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_s); /* to_s on <var_s:Buffer>*/
+var11 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_s); /* to_s on <var_s:Buffer>*/
 }
-var = var10;
+var = var11;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Collection#join for (self: Collection[nullable Object], nullable Text): String */
-val* core__abstract_text___Collection___join(val* self, val* p0) {
+/* method abstract_text$Collection$join for (self: Collection[nullable Object], nullable Text, nullable Text): String */
+val* core__abstract_text___Collection___join(val* self, val* p0, val* p1) {
 val* var /* : String */;
 val* var_separator /* var separator: nullable Text */;
+val* var_last_separator /* var last_separator: nullable Text */;
 short int var1 /* : Bool */;
 static val* varonce;
 val* var2 /* : String */;
-char* var3 /* : NativeString */;
+char* var3 /* : CString */;
 val* var4 /* : String */;
-val* var5 /* : Buffer */;
-val* var6 /* : Buffer */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Int */;
+val* var7 /* : nullable Bool */;
+val* var8 /* : nullable Bool */;
+static val* varoncenew;
+static int varoncenew_guard;
+val* var9 /* : Buffer */;
+val* var10 /* : Buffer */;
+val* var11 /* : Buffer */;
 val* var_s /* var s: Buffer */;
-val* var7 /* : Iterator[nullable Object] */;
+val* var12 /* : Iterator[nullable Object] */;
 val* var_i /* var i: Iterator[nullable Object] */;
-val* var8 /* : nullable Object */;
+val* var13 /* : nullable Object */;
 val* var_e /* var e: nullable Object */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-val* var11 /* : String */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
 short int var14 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var16 /* : Bool */;
+short int var15 /* : Bool */;
+val* var16 /* : String */;
 short int var17 /* : Bool */;
-val* var18 /* : nullable Object */;
+short int var18 /* : Bool */;
 short int var19 /* : Bool */;
-short int var20 /* : Bool */;
-val* var21 /* : String */;
-val* var22 /* : String */;
+val* var20 /* : nullable Object */;
+short int var21 /* : Bool */;
+short int var22 /* : Bool */;
+short int var23 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var25 /* : Bool */;
+short int var26 /* : Bool */;
+short int var27 /* : Bool */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+short int var31 /* : Bool */;
+short int var32 /* : Bool */;
+short int var33 /* : Bool */;
+val* var34 /* : String */;
+val* var35 /* : String */;
 var_separator = p0;
+var_last_separator = p1;
 {
 var1 = ((short int(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_core__abstract_collection__Collection__is_empty]))(self); /* is_empty on <self:Collection[nullable Object]>*/
 }
@@ -7488,7 +8880,11 @@ if (likely(varonce!=NULL)) {
 var2 = varonce;
 } else {
 var3 = "";
-var4 = core__flat___NativeString___to_s_full(var3, 0l, 0l);
+var5 = (val*)(0l<<2|1);
+var6 = (val*)(0l<<2|1);
+var7 = (val*)((long)(0)<<2|3);
+var8 = (val*)((long)(0)<<2|3);
+var4 = core__flat___CString___to_s_unsafe(var3, var5, var6, var7, var8);
 var2 = var4;
 varonce = var2;
 }
@@ -7496,35 +8892,55 @@ var = var2;
 goto RET_LABEL;
 } else {
 }
-var5 = NEW_core__Buffer(&type_core__Buffer);
+if (likely(varoncenew_guard)) {
+var9 = varoncenew;
+} else {
+var10 = NEW_core__Buffer(&type_core__Buffer);
+var9 = var10;
+varoncenew = var9;
+varoncenew_guard = 1;
+}
 {
-var6 = core__flat___Buffer___new(var5);
+var11 = core__flat___Buffer___new(var9);
 }
-var_s = var6;
+var_s = var11;
 {
-var7 = ((val*(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_core__abstract_collection__Collection__iterator]))(self); /* iterator on <self:Collection[nullable Object]>*/
+var12 = ((val*(*)(val* self))((((long)self&3)?class_info[((long)self&3)]:self->class)->vft[COLOR_core__abstract_collection__Collection__iterator]))(self); /* iterator on <self:Collection[nullable Object]>*/
 }
-var_i = var7;
+var_i = var12;
 {
-var8 = ((val*(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_i); /* item on <var_i:Iterator[nullable Object]>*/
+var13 = ((val*(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_i); /* item on <var_i:Iterator[nullable Object]>*/
 }
-var_e = var8;
+var_e = var13;
 if (var_e == NULL) {
-var9 = 0; /* is null */
+var14 = 0; /* is null */
 } else {
-var9 = 1; /* arg is null and recv is not */
+var14 = 1; /* arg is null and recv is not */
 }
 if (0) {
-var10 = ((short int(*)(val* self, val* p0))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__kernel__Object___33d_61d]))(var_e, ((val*)NULL)); /* != on <var_e:nullable Object>*/
-var9 = var10;
+var15 = ((short int(*)(val* self, val* p0))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__kernel__Object___33d_61d]))(var_e, ((val*)NULL)); /* != on <var_e:nullable Object>*/
+var14 = var15;
 }
-if (var9){
+if (var14){
 {
-var11 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_e); /* to_s on <var_e:nullable Object(Object)>*/
+var16 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_e); /* to_s on <var_e:nullable Object(Object)>*/
 }
 {
-((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var11); /* append on <var_s:Buffer>*/
+((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var16); /* append on <var_s:Buffer>*/
+}
+} else {
+}
+if (var_last_separator == NULL) {
+var17 = 1; /* is null */
+} else {
+var17 = 0; /* arg is null but recv is not */
+}
+if (0) {
+var18 = ((short int(*)(val* self, val* p0))(var_last_separator->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_last_separator, ((val*)NULL)); /* == on <var_last_separator:nullable Text>*/
+var17 = var18;
 }
+if (var17){
+var_last_separator = var_separator;
 } else {
 }
 {
@@ -7532,72 +8948,102 @@ var11 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e
 }
 for(;;) {
 {
-var12 = ((short int(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_i); /* is_ok on <var_i:Iterator[nullable Object]>*/
+var19 = ((short int(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_i); /* is_ok on <var_i:Iterator[nullable Object]>*/
 }
-if (var12){
+if (var19){
+{
+var20 = ((val*(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_i); /* item on <var_i:Iterator[nullable Object]>*/
+}
+var_e = var20;
+{
+((void(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_i); /* next on <var_i:Iterator[nullable Object]>*/
+}
+{
+var21 = ((short int(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_i); /* is_ok on <var_i:Iterator[nullable Object]>*/
+}
+if (var21){
 if (var_separator == NULL) {
-var13 = 0; /* is null */
+var22 = 0; /* is null */
 } else {
-var13 = 1; /* arg is null and recv is not */
+var22 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_separator,((val*)NULL)) on <var_separator:nullable Text> */
+{ /* Inline kernel$Object$!= (var_separator,((val*)NULL)) on <var_separator:nullable Text> */
 var_other = ((val*)NULL);
 {
-var16 = ((short int(*)(val* self, val* p0))(var_separator->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_separator, var_other); /* == on <var_separator:nullable Text(Text)>*/
+var25 = ((short int(*)(val* self, val* p0))(var_separator->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_separator, var_other); /* == on <var_separator:nullable Text(Text)>*/
 }
-var17 = !var16;
-var14 = var17;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+var26 = !var25;
+var23 = var26;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
-var13 = var14;
+var22 = var23;
 }
-if (var13){
+if (var22){
 {
 ((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var_separator); /* append on <var_s:Buffer>*/
 }
 } else {
 }
+} else {
+if (var_last_separator == NULL) {
+var27 = 0; /* is null */
+} else {
+var27 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_last_separator,((val*)NULL)) on <var_last_separator:nullable Text> */
+var_other = ((val*)NULL);
+{
+var30 = ((short int(*)(val* self, val* p0))(var_last_separator->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_last_separator, var_other); /* == on <var_last_separator:nullable Text(Text)>*/
+}
+var31 = !var30;
+var28 = var31;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
+}
+var27 = var28;
+}
+if (var27){
 {
-var18 = ((val*(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_i); /* item on <var_i:Iterator[nullable Object]>*/
+((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var_last_separator); /* append on <var_s:Buffer>*/
+}
+} else {
+}
 }
-var_e = var18;
 if (var_e == NULL) {
-var19 = 0; /* is null */
+var32 = 0; /* is null */
 } else {
-var19 = 1; /* arg is null and recv is not */
+var32 = 1; /* arg is null and recv is not */
 }
 if (0) {
-var20 = ((short int(*)(val* self, val* p0))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__kernel__Object___33d_61d]))(var_e, ((val*)NULL)); /* != on <var_e:nullable Object>*/
-var19 = var20;
+var33 = ((short int(*)(val* self, val* p0))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__kernel__Object___33d_61d]))(var_e, ((val*)NULL)); /* != on <var_e:nullable Object>*/
+var32 = var33;
 }
-if (var19){
+if (var32){
 {
-var21 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_e); /* to_s on <var_e:nullable Object(Object)>*/
+var34 = ((val*(*)(val* self))((((long)var_e&3)?class_info[((long)var_e&3)]:var_e->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_e); /* to_s on <var_e:nullable Object(Object)>*/
 }
 {
-((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var21); /* append on <var_s:Buffer>*/
+((void(*)(val* self, val* p0))(var_s->class->vft[COLOR_core__abstract_text__Buffer__append]))(var_s, var34); /* append on <var_s:Buffer>*/
 }
 } else {
 }
-{
-((void(*)(val* self))((((long)var_i&3)?class_info[((long)var_i&3)]:var_i->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_i); /* next on <var_i:Iterator[nullable Object]>*/
-}
 } else {
 goto BREAK_label;
 }
 }
 BREAK_label: (void)0;
 {
-var22 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_s); /* to_s on <var_s:Buffer>*/
+var35 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_s); /* to_s on <var_s:Buffer>*/
 }
-var = var22;
+var = var35;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Sys#program_args for (self: Sys): Sequence[String] */
+/* method abstract_text$Sys$program_args for (self: Sys): Sequence[String] */
 val* core__abstract_text___Sys___program_args(val* self) {
 val* var /* : Sequence[String] */;
 val* var1 /* : nullable Sequence[String] */;
@@ -7616,14 +9062,17 @@ var2 = var3;
 }
 if (var2){
 {
-core__abstract_text___Sys___init_args(self); /* Direct call abstract_text#Sys#init_args on <self:Sys>*/
+core__abstract_text___Sys___init_args(self); /* Direct call abstract_text$Sys$init_args on <self:Sys>*/
 }
 } else {
 }
 var4 = self->attrs[COLOR_core__abstract_text__Sys___args_cache].val; /* _args_cache on <self:Sys> */
 if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1922);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2212);
 fatal_exit(1);
 }
 var = var4;
@@ -7631,14 +9080,14 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Sys#program_name for (self: Sys): String */
+/* method abstract_text$Sys$program_name for (self: Sys): String */
 val* core__abstract_text___Sys___program_name(val* self) {
 val* var /* : String */;
-char* var1 /* : NativeString */;
-char* var3 /* : NativeString */;
+char* var1 /* : CString */;
+char* var3 /* : CString */;
 val* var4 /* : String */;
 {
-{ /* Inline abstract_text#Sys#native_argv (self,0l) on <self:Sys> */
+{ /* Inline abstract_text$Sys$native_argv (self,0l) on <self:Sys> */
 var3 = glob_argv[0l];
 var1 = var3;
 goto RET_LABEL2;
@@ -7646,14 +9095,14 @@ RET_LABEL2:(void)0;
 }
 }
 {
-var4 = core__flat___NativeString___core__abstract_text__Object__to_s(var1);
+var4 = core__flat___CString___core__abstract_text__Object__to_s(var1);
 }
 var = var4;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Sys#init_args for (self: Sys) */
+/* method abstract_text$Sys$init_args for (self: Sys) */
 void core__abstract_text___Sys___init_args(val* self) {
 long var /* : Int */;
 long var2 /* : Int */;
@@ -7673,8 +9122,8 @@ int cltype11;
 int idtype12;
 const char* var_class_name13;
 long var14 /* : Int */;
-char* var15 /* : NativeString */;
-char* var17 /* : NativeString */;
+char* var15 /* : CString */;
+char* var17 /* : CString */;
 val* var18 /* : String */;
 long var19 /* : Int */;
 short int var21 /* : Bool */;
@@ -7683,7 +9132,7 @@ int idtype23;
 const char* var_class_name24;
 long var25 /* : Int */;
 {
-{ /* Inline abstract_text#Sys#native_argc (self) on <self:Sys> */
+{ /* Inline abstract_text$Sys$native_argc (self) on <self:Sys> */
 var2 = glob_argc;
 var = var2;
 goto RET_LABEL1;
@@ -7693,20 +9142,20 @@ RET_LABEL1:(void)0;
 var_argc = var;
 var3 = NEW_core__Array(&type_core__Array__core__String);
 {
-core___core__Array___with_capacity(var3, 0l); /* Direct call array#Array#with_capacity on <var3:Array[String]>*/
+core___core__Array___with_capacity(var3, 0l); /* Direct call array$Array$with_capacity on <var3:Array[String]>*/
 }
 var_args = var3;
 var_i = 1l;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_i,var_argc) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var_argc) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_argc:Int> isa OTHER */
 /* <var_argc:Int> isa OTHER */
 var6 = 1; /* easy <var_argc:Int> isa OTHER*/
 if (unlikely(!var6)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var7 = var_i < var_argc;
@@ -7717,14 +9166,14 @@ RET_LABEL5:(void)0;
 }
 if (var4){
 {
-{ /* Inline kernel#Int#- (var_i,1l) on <var_i:Int> */
+{ /* Inline kernel$Int$- (var_i,1l) on <var_i: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_name13 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var14 = var_i - 1l;
@@ -7734,7 +9183,7 @@ RET_LABEL9:(void)0;
 }
 }
 {
-{ /* Inline abstract_text#Sys#native_argv (self,var_i) on <self:Sys> */
+{ /* Inline abstract_text$Sys$native_argv (self,var_i) on <self:Sys> */
 var17 = glob_argv[var_i];
 var15 = var17;
 goto RET_LABEL16;
@@ -7742,20 +9191,20 @@ RET_LABEL16:(void)0;
 }
 }
 {
-var18 = core__flat___NativeString___core__abstract_text__Object__to_s(var15);
+var18 = core__flat___CString___core__abstract_text__Object__to_s(var15);
 }
 {
-core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_args, var8, var18); /* Direct call array#Array#[]= on <var_args:Array[String]>*/
+core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_args, var8, var18); /* Direct call array$Array$[]= on <var_args:Array[String]>*/
 }
 {
-{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
+{ /* Inline kernel$Int$+ (var_i,1l) on <var_i: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_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var25 = var_i + 1l;
@@ -7773,7 +9222,7 @@ BREAK_label: (void)0;
 self->attrs[COLOR_core__abstract_text__Sys___args_cache].val = var_args; /* _args_cache on <self:Sys> */
 RET_LABEL:;
 }
-/* method abstract_text#Sys#native_argc for (self: Sys): Int */
+/* method abstract_text$Sys$native_argc for (self: Sys): Int */
 long core__abstract_text___Sys___native_argc(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -7783,17 +9232,17 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Sys#native_argv for (self: Sys, Int): NativeString */
+/* method abstract_text$Sys$native_argv for (self: Sys, Int): CString */
 char* core__abstract_text___Sys___native_argv(val* self, long p0) {
-char* var /* : NativeString */;
-char* var1 /* : NativeString */;
+char* var /* : CString */;
+char* var1 /* : CString */;
 var1 = glob_argv[p0];
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Sys#alpha_comparator for (self: Sys): Comparator */
+/* method abstract_text$Sys$alpha_comparator for (self: Sys): Comparator */
 val* core__abstract_text___Sys___alpha_comparator(val* self) {
 val* var /* : Comparator */;
 static val* varonce;
@@ -7805,7 +9254,7 @@ var1 = varonce;
 } else {
 var2 = NEW_core__abstract_text__AlphaComparator(&type_core__abstract_text__AlphaComparator);
 {
-{ /* Inline kernel#Object#init (var2) on <var2:AlphaComparator> */
+{ /* Inline kernel$Object$init (var2) on <var2:AlphaComparator> */
 RET_LABEL3:(void)0;
 }
 }
@@ -7818,14 +9267,14 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#Sys#args for (self: Sys): Sequence[String] */
+/* method abstract_text$Sys$args for (self: Sys): Sequence[String] */
 val* core__abstract_text___Sys___args(val* self) {
 val* var /* : Sequence[String] */;
 val* var1 /* : Sys */;
 val* var3 /* : Sys */;
 val* var4 /* : Sequence[String] */;
 {
-{ /* Inline kernel#Object#sys (self) on <self:Sys> */
+{ /* Inline kernel$Object$sys (self) on <self:Sys> */
 var3 = glob_sys;
 var1 = var3;
 goto RET_LABEL2;
@@ -7840,21 +9289,24 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#CachedAlphaComparator#cache for (self: CachedAlphaComparator): HashMap[Object, String] */
+/* method abstract_text$CachedAlphaComparator$cache for (self: CachedAlphaComparator): HashMap[Object, String] */
 val* core___core__CachedAlphaComparator___cache(val* self) {
 val* var /* : HashMap[Object, String] */;
 val* var1 /* : HashMap[Object, String] */;
 var1 = self->attrs[COLOR_core__abstract_text__CachedAlphaComparator___cache].val; /* _cache on <self:CachedAlphaComparator> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1967);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2257);
 fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#CachedAlphaComparator#do_to_s for (self: CachedAlphaComparator, Object): String */
+/* method abstract_text$CachedAlphaComparator$do_to_s for (self: CachedAlphaComparator, Object): String */
 val* core___core__CachedAlphaComparator___do_to_s(val* self, val* p0) {
 val* var /* : String */;
 val* var_a /* var a: Object */;
@@ -7870,11 +9322,14 @@ val* var10 /* : HashMap[Object, String] */;
 val* var12 /* : HashMap[Object, String] */;
 var_a = p0;
 {
-{ /* Inline abstract_text#CachedAlphaComparator#cache (self) on <self:CachedAlphaComparator> */
+{ /* Inline abstract_text$CachedAlphaComparator$cache (self) on <self:CachedAlphaComparator> */
 var3 = self->attrs[COLOR_core__abstract_text__CachedAlphaComparator___cache].val; /* _cache on <self:CachedAlphaComparator> */
 if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1967);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2257);
 fatal_exit(1);
 }
 var1 = var3;
@@ -7886,11 +9341,14 @@ var4 = core___core__HashMap___core__abstract_collection__MapRead__has_key(var1,
 }
 if (var4){
 {
-{ /* Inline abstract_text#CachedAlphaComparator#cache (self) on <self:CachedAlphaComparator> */
+{ /* Inline abstract_text$CachedAlphaComparator$cache (self) on <self:CachedAlphaComparator> */
 var7 = self->attrs[COLOR_core__abstract_text__CachedAlphaComparator___cache].val; /* _cache on <self:CachedAlphaComparator> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1967);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2257);
 fatal_exit(1);
 }
 var5 = var7;
@@ -7909,11 +9367,14 @@ var9 = ((val*(*)(val* self))((((long)var_a&3)?class_info[((long)var_a&3)]:var_a-
 }
 var_res = var9;
 {
-{ /* Inline abstract_text#CachedAlphaComparator#cache (self) on <self:CachedAlphaComparator> */
+{ /* Inline abstract_text$CachedAlphaComparator$cache (self) on <self:CachedAlphaComparator> */
 var12 = self->attrs[COLOR_core__abstract_text__CachedAlphaComparator___cache].val; /* _cache on <self:CachedAlphaComparator> */
 if (unlikely(var12 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1967);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2257);
 fatal_exit(1);
 }
 var10 = var12;
@@ -7921,14 +9382,14 @@ RET_LABEL11:(void)0;
 }
 }
 {
-core___core__HashMap___core__abstract_collection__Map___91d_93d_61d(var10, var_a, var_res); /* Direct call hash_collection#HashMap#[]= on <var10:HashMap[Object, String]>*/
+core___core__HashMap___core__abstract_collection__Map___91d_93d_61d(var10, var_a, var_res); /* Direct call hash_collection$HashMap$[]= on <var10:HashMap[Object, String]>*/
 }
 var = var_res;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#CachedAlphaComparator#compare for (self: CachedAlphaComparator, Object, Object): Int */
+/* method abstract_text$CachedAlphaComparator$compare for (self: CachedAlphaComparator, Object, Object): Int */
 long core___core__CachedAlphaComparator___core__sorter__Comparator__compare(val* self, val* p0, val* p1) {
 long var /* : Int */;
 short int var1 /* : Bool */;
@@ -7959,7 +9420,7 @@ var1 = (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->type_table[cltype] == id
 if (unlikely(!var1)) {
 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`", "COMPARED", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1976);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2266);
 fatal_exit(1);
 }
 /* Covariant cast for argument 1 (b) <p1:Object> isa COMPARED */
@@ -7975,7 +9436,7 @@ var2 = (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->type_table[cltype3] == i
 if (unlikely(!var2)) {
 var_class_name6 = p1 == NULL ? "null" : (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "COMPARED", var_class_name6);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1976);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2266);
 fatal_exit(1);
 }
 var_a = p0;
@@ -7994,7 +9455,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method abstract_text#AlphaComparator#compare for (self: AlphaComparator, nullable Object, nullable Object): Int */
+/* method abstract_text$AlphaComparator$compare for (self: AlphaComparator, nullable Object, nullable Object): Int */
 long core__abstract_text___core__abstract_text__AlphaComparator___core__sorter__Comparator__compare(val* self, val* p0, val* p1) {
 long var /* : Int */;
 short int var1 /* : Bool */;
@@ -8011,9 +9472,17 @@ short int is_nullable6;
 const char* var_class_name7;
 val* var_a /* var a: nullable Object */;
 val* var_b /* var b: nullable Object */;
-val* var8 /* : String */;
-val* var9 /* : String */;
-long var10 /* : Int */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
+long var12 /* : Int */;
+long var14 /* : Int */;
+short int var15 /* : Bool */;
+short int var16 /* : Bool */;
+val* var17 /* : String */;
+val* var18 /* : String */;
+long var19 /* : Int */;
 /* Covariant cast for argument 0 (a) <p0:nullable Object> isa COMPARED */
 /* <p0:nullable Object> isa COMPARED */
 type_struct = self->type->resolution_table->types[COLOR_core__sorter__Comparator__COMPARED];
@@ -8032,7 +9501,7 @@ var1 = (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->type_table[cltype] == id
 if (unlikely(!var1)) {
 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`", "COMPARED", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1984);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2274);
 fatal_exit(1);
 }
 /* Covariant cast for argument 1 (b) <p1:nullable Object> isa COMPARED */
@@ -8053,29 +9522,68 @@ var2 = (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->type_table[cltype3] == i
 if (unlikely(!var2)) {
 var_class_name7 = p1 == NULL ? "null" : (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "COMPARED", var_class_name7);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1984);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 2274);
 fatal_exit(1);
 }
 var_a = p0;
 var_b = p1;
 if (var_a == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1984);
-fatal_exit(1);
+var8 = (var_b == NULL);
+} else {
+var9 = ((short int(*)(val* self, val* p0))((((long)var_a&3)?class_info[((long)var_a&3)]:var_a->class)->vft[COLOR_core__kernel__Object___61d_61d]))(var_a, var_b); /* == on <var_a:nullable Object>*/
+var8 = var9;
+}
+if (var8){
+var = 0l;
+goto RET_LABEL;
+} else {
+}
+if (var_a == NULL) {
+var10 = 1; /* is null */
+} else {
+var10 = 0; /* arg is null but recv is not */
+}
+if (0) {
+var11 = ((short int(*)(val* self, val* p0))((((long)var_a&3)?class_info[((long)var_a&3)]:var_a->class)->vft[COLOR_core__kernel__Object___61d_61d]))(var_a, ((val*)NULL)); /* == on <var_a:nullable Object>*/
+var10 = var11;
+}
+if (var10){
+{
+{ /* Inline kernel$Int$unary - (1l) on <1l:Int> */
+var14 = -1l;
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
+}
+}
+var = var12;
+goto RET_LABEL;
 } else {
-var8 = ((val*(*)(val* self))((((long)var_a&3)?class_info[((long)var_a&3)]:var_a->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_a); /* to_s on <var_a:nullable Object>*/
 }
 if (var_b == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1984);
-fatal_exit(1);
+var15 = 1; /* is null */
+} else {
+var15 = 0; /* arg is null but recv is not */
+}
+if (0) {
+var16 = ((short int(*)(val* self, val* p0))((((long)var_b&3)?class_info[((long)var_b&3)]:var_b->class)->vft[COLOR_core__kernel__Object___61d_61d]))(var_b, ((val*)NULL)); /* == on <var_b:nullable Object>*/
+var15 = var16;
+}
+if (var15){
+var = 1l;
+goto RET_LABEL;
 } else {
-var9 = ((val*(*)(val* self))((((long)var_b&3)?class_info[((long)var_b&3)]:var_b->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:nullable Object>*/
 }
 {
-var10 = core___core__Comparable____60d_61d_62d(var8, var9);
+var17 = ((val*(*)(val* self))((((long)var_a&3)?class_info[((long)var_a&3)]:var_a->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_a); /* to_s on <var_a:nullable Object(Object)>*/
 }
-var = var10;
+{
+var18 = ((val*(*)(val* self))((((long)var_b&3)?class_info[((long)var_b&3)]:var_b->class)->vft[COLOR_core__abstract_text__Object__to_s]))(var_b); /* to_s on <var_b:nullable Object(Object)>*/
+}
+{
+var19 = core___core__Comparable____60d_61d_62d(var17, var18);
+}
+var = var19;
 goto RET_LABEL;
 RET_LABEL:;
 return var;