lib/std/zig/Ast.zig                                                       |  18 ++++
 lib/std/zig/AstGen.zig                                                    | 150 +++++++++++++++++++-------------
 lib/std/zig/Zir.zig                                                       |  60 +++++++++----
 src/Sema.zig                                                              |  63 +++++++++++---
 src/Zcu.zig                                                               |  47 +++++-----
 src/print_zir.zig                                                         |  60 +++++++++----
 test/behavior/switch.zig                                                  |  25 ++++++
 test/cases/compile_errors/switch_expression-non_exhaustive_absorbing.zig  |  33 +++++++
 test/cases/compile_errors/switching_with_exhaustive_enum_has___prong_.zig |   2 +-
 test/cases/compile_errors/switching_with_non-exhaustive_enums.zig         |   2 +-
 10 files changed, 333 insertions(+), 127 deletions(-)