/* PR c/27953 */
-void foo(struct A a) {} /* { dg-error "parameter list|definition|incomplete type" } */
+void foo(struct A a) {} /* { dg-warning "declared inside parameter list" } */
+/* { dg-warning "its scope is only" "" { target *-*-* } 3 } */
+/* { dg-error "incomplete type" "" { target *-*-* } 3 } */
+
void foo() {} /* { dg-error "redefinition" } */
+/* { dg-error "previous definition" "" { target *-*-* } 3 } */