Diagnose declarations of implicit member functions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90605 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/implicit-member-functions.cpp b/test/SemaCXX/implicit-member-functions.cpp
new file mode 100644
index 0000000..1867808
--- /dev/null
+++ b/test/SemaCXX/implicit-member-functions.cpp
@@ -0,0 +1,14 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+
+struct A { }; // expected-note {{previous implicit declaration is here}}
+A::A() { } // expected-error {{definition of implicitly declared constructor}}
+
+struct B { }; // expected-note {{previous implicit declaration is here}}
+B::B(const B&) { } // expected-error {{definition of implicitly declared copy constructor}}
+
+struct C { }; // expected-note {{previous implicit declaration is here}}
+C& C::operator=(const C&) { return *this; } // expected-error {{definition of implicitly declared copy assignment operator}}
+
+struct D { }; // expected-note {{previous implicit declaration is here}}
+D::~D() { } // expected-error {{definition of implicitly declared destructor}}
+