Add 'expected-warning' for braces around scalar initializer

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58280 91177308-0d34-0410-b5e6-96231b3b80d8

test/Analysis/stack-addr-ps.c

@@ -19,6 +19,6 @@ int* f3(int x, int *y) {
 }
 
 unsigned short* compound_literal() {
-  return &(unsigned short){((unsigned short)0x22EF)}; // expected-warning{{Address of stack memory}}
+  return &(unsigned short){((unsigned short)0x22EF)}; // expected-warning{{Address of stack memory}} expected-warning{{braces around scalar initializer}}
 }