Basic implementation of inherited constructors. Only generates declarations, and probably only works for very basic use cases.

llvm-svn: 124970
diff --git a/clang/test/CXX/special/class.inhctor/p3.cpp b/clang/test/CXX/special/class.inhctor/p3.cpp
new file mode 100644
index 0000000..021f701
--- /dev/null
+++ b/clang/test/CXX/special/class.inhctor/p3.cpp
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
+
+struct B1 {
+  B1(int);
+  B1(int, int);
+};
+struct D1 : B1 {
+  using B1::B1;
+};
+D1 d1a(1), d1b(1, 1);
+
+D1 fd1() { return 1; }
+
+struct B2 {
+  explicit B2(int, int = 0, int = 0);
+};
+struct D2 : B2 { // expected-note {{candidate constructor}}
+  using B2::B2;
+};
+D2 d2a(1), d2b(1, 1), d2c(1, 1, 1);
+
+D2 fd2() { return 1; } // expected-error {{no viable conversion}}
+
+struct B3 {
+  B3(void*); // expected-note {{inherited from here}}
+};
+struct D3 : B3 { // expected-note {{candidate constructor}}
+  using B3::B3; // expected-note {{candidate constructor (inherited)}}
+};
+D3 fd3() { return 1; } // expected-error {{no viable conversion}}