src/Sema.zig                                                               | 121 +++++++++++++++++++++++++-------
 src/codegen.zig                                                            |   2 +-
 src/codegen/c.zig                                                          |   3 +-
 src/codegen/llvm.zig                                                       |   2 +-
 src/type.zig                                                               |   9 ++-
 test/behavior/eval.zig                                                     |  15 ++++
 test/behavior/union.zig                                                    |  24 +++++++
 test/cases/compile_errors/explain_why_fn_is_called_at_comptime.zig         |  23 ++++++
 test/cases/compile_errors/explain_why_generic_fn_is_called_at_comptime.zig |  22 ++++++
 test/compile_errors.zig                                                    |   1 +
 10 files changed, 190 insertions(+), 32 deletions(-)