Use test directive needs-atomic in tests

Author: kei519

tests/ui/cfg/disallowed-cli-cfgs.rs

@@ -3,10 +3,11 @@
 //@ revisions: sanitizer_cfi_generalize_pointers_ sanitizer_cfi_normalize_integers_
 //@ revisions: proc_macro_ panic_ target_feature_ unix_ windows_ target_abi_
 //@ revisions: target_arch_ target_endian_ target_env_ target_family_ target_os_
-//@ revisions: target_pointer_width_ target_vendor_ target_has_atomic_
+//@ revisions: target_pointer_width_ target_vendor_
 //@ revisions: target_has_atomic_equal_alignment_ target_has_atomic_load_store_
 //@ revisions: target_thread_local_ relocation_model_
 //@ revisions: fmt_debug_
+//@ needs-atomic: 32
 
 //@ [overflow_checks_]compile-flags: --cfg overflow_checks
 //@ [debug_assertions_]compile-flags: --cfg debug_assertions
@@ -27,7 +28,6 @@
 //@ [target_os_]compile-flags: --cfg target_os="linux"
 //@ [target_pointer_width_]compile-flags: --cfg target_pointer_width="32"
 //@ [target_vendor_]compile-flags: --cfg target_vendor
-//@ [target_has_atomic_]compile-flags: --cfg target_has_atomic="32"
 //@ [target_has_atomic_equal_alignment_]compile-flags: --cfg target_has_atomic_equal_alignment="32"
 //@ [target_has_atomic_load_store_]compile-flags: --cfg target_has_atomic_load_store="32"
 //@ [target_thread_local_]compile-flags: --cfg target_thread_local