Add test for PR9927.

llvm-svn: 131403

clang/test/CodeGenObjCXX/PR9927.mm

@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -emit-llvm-only %s
+
+// Test that we don't crash.
+
+class allocator {
+};
+class basic_string     {
+struct _Alloc_hider : allocator       {
+char* _M_p;
+};
+_Alloc_hider _M_dataplus;
+};
+@implementation
+CrashReporterUI -(void)awakeFromNib {
+}
+-(void)showCrashUI:(const basic_string&)dumpfile   {
+}
+@end