src/InternPool.zig                                                                    |   93 ++
 src/Module.zig                                                                        |    2 +-
 src/Sema.zig                                                                          | 1973 ++++++++++++++++++++++----------
 test/behavior/cast.zig                                                                |  610 ++++++++++
 test/cases/compile_errors/compare_optional_to_non-optional_with_invalid_types.zig     |   37 -
 test/cases/compile_errors/compare_optional_to_non_optional_with_incomparable_type.zig |   11 +
 test/cases/compile_errors/invalid_peer_type_resolution.zig                            |   50 +
 7 files changed, 2140 insertions(+), 636 deletions(-)