After reporting ill-formed copy constructor(12.8.p3)
don't recurs and crash.

llvm-svn: 78323
diff --git a/clang/test/SemaCXX/copy-constructor-error.cpp b/clang/test/SemaCXX/copy-constructor-error.cpp
new file mode 100644
index 0000000..afe741f
--- /dev/null
+++ b/clang/test/SemaCXX/copy-constructor-error.cpp
@@ -0,0 +1,13 @@
+// RUN: clang-cc -fsyntax-only -verify %s 
+
+struct S {	// expected-note {{candidate function}} 
+   S (S);	// expected-error {{copy constructor must pass its first argument by reference}} \\
+                // expected-note {{candidate function}}
+};
+
+S f();
+
+void g() { 
+  S a( f() );  // expected-error {{call to constructor of 'a' is ambiguous}}
+}
+