Testcase for constant CFStrings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59992 91177308-0d34-0410-b5e6-96231b3b80d8

test/FrontendObjC/2008-11-24-ConstCFStrings.m

@@ -0,0 +1,11 @@
+// RUN: %llvmgcc -x objective-c -m64 -S %s -o - | grep {L_unnamed_cfstring_}
+
+@class NSString;
+
+@interface A
+- (void)bork:(NSString*)msg;
+@end
+
+void func(A *a) {
+  [a bork:@"Hello world!"];
+}