[analyzer] Make buildbots happy

clang/test/Analysis/malloc.c

@@ -1843,9 +1843,10 @@ variable 'buf', which is not memory allocated by malloc() [unix.Malloc]}}
   }
 }
 
-(*crash_a)();
+(*crash_a)(); // expected-warning{{type specifier missing}}
 // A CallEvent without a corresponding FunctionDecl.
 crash_b() { crash_a(); } // no-crash
+// expected-warning@-1{{type specifier missing}} expected-warning@-1{{non-void}}
 
 // ----------------------------------------------------------------------------
 // False negatives.