create mode 100644 doc/langref/test_packed_struct_backing_int.zig
 create mode 100644 test/behavior/backing_int.zig
 create mode 100644 test/cases/compile_errors/backing_int_invalid_arg_type.zig
 delete mode 100644 test/cases/compile_errors/bitCast_with_invalid_array_element_type.zig
 create mode 100644 test/cases/compile_errors/bitcast_invalid_types.zig
 create mode 100644 test/cases/compile_errors/bitcast_to_enum_invalid_tag_value.zig
 create mode 100644 test/cases/compile_errors/empty_enum_from_backing_int.zig
 create mode 100644 test/cases/compile_errors/enum_noreturn_backing_type.zig
 create mode 100644 test/cases/compile_errors/from_backing_int_invalid_dest_type.zig
 create mode 100644 test/cases/compile_errors/from_backing_int_type_mismatch.zig
 create mode 100644 test/cases/compile_errors/from_backing_int_undef.zig
 create mode 100644 test/cases/compile_errors/instantiate_empty_enum.zig
 delete mode 100644 test/cases/compile_errors/int_from_enum_undefined.zig
 create mode 100644 test/cases/safety/backing_int_no_matching_tag_value.zig
 create mode 100644 test/cases/safety/bitcast_to_enum_no_matching_tag_value.zig