lib/std/zig/AstGen.zig                                                       |   6 +-
 lib/std/zig/Zir.zig                                                          |   8 ++
 src/Compilation.zig                                                          |  10 +-
 src/InternPool.zig                                                           |   2 +-
 src/Sema.zig                                                                 | 236 +++++++++++++++++++++++---------
 src/Zcu.zig                                                                  |   2 +
 src/print_zir.zig                                                            |   1 +
 test/behavior/cast.zig                                                       |  16 +++
 test/behavior/error.zig                                                      |  32 ++++-
 test/behavior/eval.zig                                                       |  11 ++
 test/behavior/fn.zig                                                         |  17 +++
 test/behavior/generics.zig                                                   |  16 +++
 test/behavior/slice.zig                                                      |  13 ++
 test/behavior/type_info.zig                                                  |   9 ++
 test/behavior/union.zig                                                      |  16 +++
 test/cases/compile_errors/for_comptime_array_pointer.zig                     |  12 ++
 test/cases/compile_errors/struct_depends_on_itself_via_non_initial_field.zig |  12 ++
 test/cases/compile_errors/tagName_on_undef_enum_literal.zig                  |   8 ++
 test/incremental/analysis_error_and_syntax_error                             |  42 ++++++
 19 files changed, 395 insertions(+), 74 deletions(-)