Restore previous behaviour of test

Go back to using CopyConsOnlyType as before r265485, because it works
again now. Add test using DelAnyAssign for completeness and additional
coverage.

	* testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
	use of CopyConsOnlyType, but also test DelAnyAssign for completeness.

From-SVN: r268539

libstdc++-v3/ChangeLog

 2019-02-05  Jonathan Wakely  <jwakely@redhat.com>
 
+	* testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
+	use of CopyConsOnlyType, but also test DelAnyAssign for completeness.
+
 	PR libstdc++/89130
 	* include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to
 	__is_alloc_insertable_impl. Replace single type member with two

libstdc++-v3/testsuite/23_containers/vector/modifiers/push_back/49836.cc

@@ -24,11 +24,12 @@
 // libstdc++/49836
 void test01()
 {
-  using __gnu_test::assign::DelAnyAssign;
+  using __gnu_test::CopyConsOnlyType;
   using __gnu_test::MoveConsOnlyType;
+  using __gnu_test::assign::DelAnyAssign;
 
-  std::vector<DelAnyAssign> v1;
-  DelAnyAssign t1;
+  std::vector<CopyConsOnlyType> v1;
+  CopyConsOnlyType t1(1);
   v1.push_back(t1);
   v1.push_back(t1);
   v1.push_back(t1);
@@ -40,6 +41,14 @@ void test01()
   v2.push_back(std::move(t2));
   v2.push_back(std::move(t2));
   VERIFY( v2.size() == 3 );
+
+  std::vector<DelAnyAssign> v3;
+  DelAnyAssign t3;
+  v3.push_back(t3);
+  v3.push_back(t3);
+  v3.push_back(t3);
+  VERIFY( v3.size() == 3 );
+
 }
 
 int main()