C++11 inheriting constructors: support for inheriting constructor templates.

llvm-svn: 179151
diff --git a/clang/test/CXX/special/class.inhctor/p3.cpp b/clang/test/CXX/special/class.inhctor/p3.cpp
index f71ab16..7aaaa7a 100644
--- a/clang/test/CXX/special/class.inhctor/p3.cpp
+++ b/clang/test/CXX/special/class.inhctor/p3.cpp
@@ -46,3 +46,13 @@
   friend T3<int>::T3(int);
   friend T3<int>::T3(int, int);
 };
+
+struct B4 {
+  template<typename T> explicit B4(T, int = 0);
+};
+template<typename T> struct T4 : B4 {
+  using B4::B4; // expected-note {{here}}
+  template<typename U> T4(U);
+};
+T4<void> t4a = {0};
+T4<void> t4b = {0, 0}; // expected-error {{chosen constructor is explicit}}