Fix test on platforms where size_t != unsigned long.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64867 91177308-0d34-0410-b5e6-96231b3b80d8

test/Sema/implicit-builtin-decl.c

@@ -36,6 +36,6 @@ int f0() {
 }
 
 void * realloc(void *p, int size) { // expected-warning{{incompatible redeclaration of library function 'realloc' will be ignored}} \
-// expected-note{{'realloc' is a builtin with type 'void *(void *, unsigned long)'}}
+// expected-note{{'realloc' is a builtin with type 'void *(void *,}}
   return p;
 }