10
-0
-1
-2
-10
-20
-30
+Uninitialized attribute _a2 in base_attr_nullable_int_alt4::Foo::run_other (alt/base_attr_nullable_int_alt4.nit:39)
+,---- Stack trace -- - - -
+| base_attr_nullable_int_alt4::Foo::run_other (alt/base_attr_nullable_int_alt4.nit:36)
+| base_attr_nullable_int_alt4::Bar::init (alt/base_attr_nullable_int_alt4.nit:63)
+| base_attr_nullable_int_alt4::Sys::main (alt/base_attr_nullable_int_alt4.nit:75)
+`------------------- - - -