PR11000: Fix crash on invalid.

llvm-svn: 140802
diff --git a/clang/test/Parser/PR11000.cpp b/clang/test/Parser/PR11000.cpp
new file mode 100644
index 0000000..41c6206
--- /dev/null
+++ b/clang/test/Parser/PR11000.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -std=c++0x %s 2>&1 | FileCheck %s
+
+// PR11000: Don't crash.
+class tuple<>
+{
+    template <class _Alloc>
+        tuple(allocator_arg_t, const _Alloc&) {}
+
+// CHECK: 6 errors generated.