Add test case that I forgot to commit with r107354 (the implementation

of C++ DR481). 

llvm-svn: 107359

clang/test/CXX/basic/basic.scope/basic.scope.pdecl/p9.cpp

@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// Template type parameters.
+typedef unsigned char T;
+template<typename T = T> struct X0 { };
+template<> struct X0<unsigned char> { static const bool value = true; };
+int array0[X0<>::value? 1 : -1];
+
+// Non-type template parameters.
+const int N = 17;
+template<int N = N> struct X1 { };
+template<> struct X1<17> { static const bool value = true; };
+int array1[X1<>::value? 1 : -1];
+
+// Template template parameters.
+template<template<class> class X0 = X0> struct X2 { };
+template<> struct X2<X0> { static const bool value = true; };
+int array2[X2<>::value? 1 : -1];