Add tests and support two more noop methods

compiler/rustc_span/src/symbol.rs

@@ -789,6 +789,9 @@ symbols! {
         none_error,
         nontemporal_store,
         nontrapping_dash_fptoint: "nontrapping-fptoint",
+        noop_method_borrow,
+        noop_method_clone,
+        noop_method_deref,
         noreturn,
         nostack,
         not,
@@ -915,7 +918,6 @@ symbols! {
         receiver,
         recursion_limit,
         reexport_test_harness_main,
-        ref_clone_method,
         reference,
         reflect,
         reg,