decomp4.C (test): Use 2 identifier decomposition instead of just 1 for the decomposition from...

	* g++.dg/cpp1z/decomp4.C (test): Use 2 identifier decomposition
	instead of just 1 for the decomposition from struct C.

From-SVN: r244312

gcc/testsuite/ChangeLog

+2017-01-11  Jakub Jelinek  <jakub@redhat.com>
+
+	* g++.dg/cpp1z/decomp4.C (test): Use 2 identifier decomposition
+	instead of just 1 for the decomposition from struct C.
+
 2017-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gcc.c-torture/execute/20170111-1.c: New test.

gcc/testsuite/g++.dg/cpp1z/decomp4.C

@@ -18,7 +18,7 @@ test (A &a, B &b, C &c, D &d, E &e, F &f, G &g, H &h, I &i)
 					// { dg-warning "decomposition declaration only available with -std=c..1z or -std=gnu..1z" "" { target c++14_down } .-1 }
   auto [ k ] { b };			// { dg-error "cannot decompose class type 'B' because it has an anonymous union member" }
 					// { dg-warning "decomposition declaration only available with -std=c..1z or -std=gnu..1z" "" { target c++14_down } .-1 }
-  auto [ l ] = c;			// { dg-error "cannot decompose non-public member 'C::b' of 'C'" }
+  auto [ l, l2 ] = c;			// { dg-error "cannot decompose non-public member 'C::b' of 'C'" }
 					// { dg-warning "decomposition declaration only available with -std=c..1z or -std=gnu..1z" "" { target c++14_down } .-1 }
   auto [ m ] = d;			// { dg-warning "decomposition declaration only available with -std=c..1z or -std=gnu..1z" "" { target c++14_down } }
   auto [ n ] { e };			// { dg-error "cannot decompose non-public member 'E::a' of 'E'" }