src/Sema.zig                                          | 33 +++++++++++++++++++++++---------
 test/behavior/sizeof_and_typeof.zig                   |  5 +++++
 test/cases/compile_errors/ref_deref_of_null_c_ptr.zig |  8 --------
 test/cases/safety/deref_null_c_pointer.zig            | 17 ++++++++++++++++
 test/cases/safety/ref_deref_null_c_pointer.zig        | 17 ++++++++++++++++
 5 files changed, 63 insertions(+), 17 deletions(-)