c-lex.c (c_common_has_attribute): Return 201803 instead of 20180312 for no_unique_address.

	* c-lex.c (c_common_has_attribute): Return 201803 instead of 20180312
	for no_unique_address.

	* g++.dg/cpp2a/feat-cxx2a.C: New test.

From-SVN: r265034

gcc/c-family/ChangeLog

+2018-10-11  Jakub Jelinek  <jakub@redhat.com>
+
+	* c-lex.c (c_common_has_attribute): Return 201803 instead of 20180312
+	for no_unique_address.
+
 2018-10-09  David Malcolm  <dmalcolm@redhat.com>
 
 	* c-common.c (c_option_controlling_cpp_error): Rename to...

gcc/c-family/c-lex.c

@@ -357,7 +357,7 @@ c_common_has_attribute (cpp_reader *pfile)
 		       || is_attribute_p ("fallthrough", attr_name))
 		result = 201603;
 	      else if (is_attribute_p ("no_unique_address", attr_name))
-		result = 20180312;
+		result = 201803;
 	      if (result)
 		attr_name = NULL_TREE;
 	    }

gcc/testsuite/ChangeLog

 2018-10-11  Jakub Jelinek  <jakub@redhat.com>
 
+	* g++.dg/cpp2a/feat-cxx2a.C: New test.
+
 	PR c++/87547
 	* g++.dg/rtti/typeid12.C: New test.