src/AstGen.zig                                                               |  32 ++++++++++
 src/Sema.zig                                                                 | 106 +++++++++++++++++++++-----------
 src/codegen/llvm.zig                                                         |   8 ++-
 test/behavior.zig                                                            |   4 ++
 test/behavior/bugs/12885.zig                                                 |  36 +++++++++++
 test/behavior/bugs/12911.zig                                                 |  11 ++++
 test/behavior/bugs/12928.zig                                                 |  26 ++++++++
 test/behavior/bugs/12945.zig                                                 |  13 ++++
 test/behavior/generics.zig                                                   |  13 ++++
 test/behavior/typename.zig                                                   |  25 ++++++++
 test/cases/compile_errors/implicit_array_ptr_cast_sentinel_mismatch.zig      |  23 +++++++
 test/cases/compile_errors/packed_struct_with_fields_of_not_allowed_types.zig |   7 +++
 test/cases/compile_errors/slice_used_as_extern_fn_param.zig                  |  11 ++++
 13 files changed, 277 insertions(+), 38 deletions(-)