lib/std/zig/Zir.zig                                                           |   2 +-
 src/Sema.zig                                                                  | 162 +++++++++++++++++++++++++-------
 src/Zcu/PerThread.zig                                                         |  19 ++++
 test/behavior/slice.zig                                                       |  82 ++++++++++++++++
 test/cases/compile_errors/coerce_pointers_with_uncoercable_child_pointers.zig |  14 +++
 test/cases/compile_errors/deref_slice_and_get_len_field.zig                   |   2 +-
 test/cases/compile_errors/deref_slice_with_undef_len.zig                      |  23 +++++
 test/cases/compile_errors/dereference_slice.zig                               |   2 +-
 test/cases/compile_errors/slice_to_array_pointer.zig                          |  70 ++++++++++++++
 9 files changed, 341 insertions(+), 35 deletions(-)