2 Uninitialized attribute _a2 (alt/base_attr_nullable_int_alt2.nit:29)
3 ,---- Stack trace -- - - -
4 | base_attr_nullable_int_alt2::Foo::a2 (alt/base_attr_nullable_int_alt2.nit:29)
5 | base_attr_nullable_int_alt2::Foo::run (alt/base_attr_nullable_int_alt2.nit:30)
6 | base_attr_nullable_int_alt2::Foo::init (alt/base_attr_nullable_int_alt2.nit:42)
7 | base_attr_nullable_int_alt2::Sys::main (alt/base_attr_nullable_int_alt2.nit:75)
8 `------------------- - - -