src/Sema.zig             | 106 +++++++++++++++++++++++---------
 src/Zir.zig              |  47 ++++++++++++++
 src/type.zig             |   6 +-
 test/behavior/switch.zig |   8 ++-
 test/behavior/type.zig   |   7 +++
 test/behavior/union.zig  |  17 +++++
 6 files changed, 159 insertions(+), 32 deletions(-)