src/Module.zig                  |  19 +--
 src/Sema.zig                    | 135 ++++++++++++++++++--
 src/type.zig                    |   6 +-
 test/behavior/switch.zig        |  13 ++
 test/behavior/switch_stage1.zig |  13 --
 test/behavior/union.zig         | 205 +++++++++++++++++++++++++++++++
 test/behavior/union_stage1.zig  | 211 --------------------------------
 7 files changed, 356 insertions(+), 246 deletions(-)