create mode 100644 test/cases/compile_errors/c_pointer_to_void.zig create mode 100644 test/cases/compile_errors/exported_enum_without_explicit_integer_tag_type.zig create mode 100644 test/cases/compile_errors/extern_struct_with_extern-compatible_but_inferred_integer_tag_type.zig create mode 100644 test/cases/compile_errors/extern_struct_with_non-extern-compatible_integer_tag_type.zig create mode 100644 test/cases/compile_errors/invalid_optional_type_in_extern_struct.zig delete mode 100644 test/cases/compile_errors/stage1/obj/exported_enum_without_explicit_integer_tag_type.zig delete mode 100644 test/cases/compile_errors/stage1/obj/extern_struct_with_extern-compatible_but_inferred_integer_tag_type.zig delete mode 100644 test/cases/compile_errors/stage1/obj/extern_struct_with_non-extern-compatible_integer_tag_type.zig delete mode 100644 test/cases/compile_errors/stage1/obj/invalid_optional_type_in_extern_struct.zig delete mode 100644 test/cases/compile_errors/stage1/obj/optional_pointer_to_void_in_extern_struct.zig create mode 100644 test/cases/compile_errors/stage1/optional_pointer_to_void_in_extern_struct.zig