src/Sema.zig                                           |   72 +-
 test/cases/compile_errors/undef_arith_is_illegal.zig   |    2 +-
 test/cases/compile_errors/undef_shifts_are_illegal.zig | 3004 ++++++++++++++++++++++++++++++++
 3 files changed, 3062 insertions(+), 16 deletions(-)