src/Sema.zig                                                                                     | 201 ++++++++++++++++++++++----------
 test/cases/compile_errors/directly_embedding_opaque_type_in_struct_and_union.zig                 |   4 +-
 test/cases/compile_errors/extern_struct_with_extern-compatible_but_inferred_integer_tag_type.zig |   6 +-
 test/cases/compile_errors/extern_struct_with_non-extern-compatible_integer_tag_type.zig          |   6 +-
 test/cases/compile_errors/file_level_struct_invalid_field_type.zig                               |  17 +++
 test/cases/compile_errors/invalid_optional_type_in_extern_struct.zig                             |   4 +-
 test/cases/compile_errors/noreturn_struct_field.zig                                              |   2 +-
 test/cases/compile_errors/old_fn_ptr_in_extern_context.zig                                       |   6 +-
 test/cases/compile_errors/packed_struct_with_fields_of_not_allowed_types.zig                     |  34 +++---
 test/cases/compile_errors/packed_union_with_automatic_layout_field.zig                           |   4 +-
 test/cases/compile_errors/union_enum_field_does_not_match_enum.zig                               |   2 +-
 test/cases/compile_errors/union_extra_field.zig                                                  |   2 +-
 12 files changed, 194 insertions(+), 94 deletions(-)