test_attr_easy.nit:19,5--14: Warning: expression is already a `Bool`.
test_attr_easy.nit:19,18--27: Warning: expression is already a `Bool`.
test_attr_easy.nit:19,31--39: Warning: expression is already a `Int`.
test_attr_easy.nit:19,43--53: Warning: expression is already a `Float`.
test_attr_easy.nit:20,5--16: Warning: expression is already a `String`.
test_attr_easy.nit:20,20--26: Warning: expression is already a `B`.
test_attr_easy.nit:20,44--63: Warning: expression is already a `HashMap[Int, B]`.
true false 12345 1.234 asdf true
an instance of B
true true true true
true true true true