2 ,---- Stack trace -- - - -
3 | base_attr_nullable_alt3::Bar::(base_attr_nullable_alt3::Foo::run) (alt/base_attr_nullable_alt3.nit:62)
4 | base_attr_nullable_alt3::Bar::init (alt/base_attr_nullable_alt3.nit:69)
5 | base_attr_nullable_alt3::Sys::main (alt/base_attr_nullable_alt3.nit:81)
6 `------------------- - - -