r310978 - Add missing test for warning added in r310803.

[Richard Smith via cfe-commits]

Author: rsmith
Date: Tue Aug 15 17:06:07 2017
New Revision: 310978

URL: http://llvm.org/viewvc/llvm-project?rev=310978&view=rev
Log:
Add missing test for warning added in r310803.

Added:
    cfe/trunk/test/Lexer/cxx2a_keyword_as_cxx17.cpp

Added: cfe/trunk/test/Lexer/cxx2a_keyword_as_cxx17.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Lexer/cxx2a_keyword_as_cxx17.cpp?rev=310978&view=auto
==============================================================================
--- cfe/trunk/test/Lexer/cxx2a_keyword_as_cxx17.cpp (added)
+++ cfe/trunk/test/Lexer/cxx2a_keyword_as_cxx17.cpp Tue Aug 15 17:06:07 2017
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only -Wc++2a-compat -std=c++17
+
+#define concept constexpr bool
+template<typename T>
+concept x = 0;
+#undef concept
+
+int concept = 0; // expected-warning {{'concept' is a keyword in C++2a}}
+int requires = 0; // expected-warning {{'requires' is a keyword in C++2a}}