Fix up tests

Author: AaronBallman

clang/test/C/C23/n3030.c

@@ -60,6 +60,7 @@ static_assert(a == 1);
 static_assert(b == 1);
 
 void f1(enum a : long b); // expected-error {{non-defining declaration of enumeration with a fixed underlying type is only permitted as a standalone declaration; missing list of enumerators?}}
+                          // expected-warning@-1 {{declaration of 'enum a' will not be visible outside of this function}}
 void f2(enum c : long{x} d);
 enum e : int f3(); // expected-error {{non-defining declaration of enumeration with a fixed underlying type is only permitted as a standalone declaration; missing list of enumerators?}}
 

clang/test/C/drs/dr1xx.c

@@ -102,14 +102,14 @@ void dr102(void) {
  * Formal parameters of incomplete type
  */
 void dr103_1(int arg[]); /* ok, not an incomplete type due to rewrite */
-void dr103_2(struct S s) {} /* untilc23-warning {{declaration of 'struct S' will not be visible outside of this function}}
+void dr103_2(struct S s) {} /* expected-warning {{declaration of 'struct S' will not be visible outside of this function}}
                                expected-error {{variable has incomplete type 'struct S'}}
                                expected-note {{forward declaration of 'struct S'}} */
-void dr103_3(struct S s);               /* untilc23-warning {{declaration of 'struct S' will not be visible outside of this function}}
+void dr103_3(struct S s);               /* expected-warning {{declaration of 'struct S' will not be visible outside of this function}}
                                            expected-note {{previous declaration is here}} */
 void dr103_3(struct S { int a; } s) { } /* untilc23-warning {{declaration of 'struct S' will not be visible outside of this function}}
                                            expected-error {{conflicting types for 'dr103_3'}} */
-void dr103_4(struct S s1, struct S { int a; } s2); /* untilc23-warning {{declaration of 'struct S' will not be visible outside of this function}} */
+void dr103_4(struct S s1, struct S { int a; } s2); /* expected-warning {{declaration of 'struct S' will not be visible outside of this function}} */
 
 /* WG14 DR105: dup 017
  * Precedence of requirements on compatible types

clang/test/Sema/enum.c

@@ -108,7 +108,7 @@ void PR8694(int* e) // expected-note {{passing argument to parameter 'e' here}}
 {
 }
 
-void crash(enum E *e) // pre-c23-warning {{declaration of 'enum E' will not be visible outside of this function}} \
+void crash(enum E *e) // expected-warning {{declaration of 'enum E' will not be visible outside of this function}} \
                       // expected-warning {{ISO C forbids forward references to 'enum' types}}
 {
         PR8694(e); // expected-warning {{incompatible pointer types passing 'enum E *' to parameter of type 'int *'}}