feat-cxx1z.C: Fix __cpp_fold_expressions value.

	* g++.dg/cpp1z/feat-cxx1z.C: Fix __cpp_fold_expressions value.
	* g++.dg/cpp1z/fold7.C: Likewise.

From-SVN: r234212

gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C

@@ -328,8 +328,8 @@
 
 #ifndef __cpp_fold_expressions
 #  error "__cpp_fold_expressions"
-#elif __cpp_fold_expressions != 201411
-#  error "__cpp_fold_expressions != 201411"
+#elif __cpp_fold_expressions != 201603
+#  error "__cpp_fold_expressions != 201603"
 #endif
 
 #ifndef __cpp_nontype_template_args

gcc/testsuite/g++.dg/cpp1z/fold7.C

@@ -4,6 +4,6 @@
 #error __cpp_fold_expressions not defined
 #endif
 
-#if __cpp_fold_expressions != 201411
+#if __cpp_fold_expressions != 201603
 #error Wrong value for __cpp_fold_expressions
 #endif