delete mode 100644 test/cases/compile_errors/C_pointer_to_anyopaque.zig
 create mode 100644 test/cases/compile_errors/invalid_pointer_to_opaque.zig
 delete mode 100644 test/cases/compile_errors/pointer_to_anyopaque_slice.zig
 delete mode 100644 test/cases/compile_errors/unknown_length_pointer_to_opaque.zig