1
Uninitialized attribute _a2 (alt/base_attr_nullable_int_alt2.nit:29)
,---- Stack trace -- - -  -
| base_attr_nullable_int_alt2::Foo::a2 (alt/base_attr_nullable_int_alt2.nit:29)
| base_attr_nullable_int_alt2::Foo::run (alt/base_attr_nullable_int_alt2.nit:30)
| base_attr_nullable_int_alt2::Foo::init (alt/base_attr_nullable_int_alt2.nit:42)
| base_attr_nullable_int_alt2::Sys::main (alt/base_attr_nullable_int_alt2.nit:75)
`------------------- - -  -