Update tests -verify error messages after r300140.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@300156 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/containers/unord/unord.set/missing_hash_specialization.fail.cpp

@@ -53,7 +53,7 @@ int main() {
   // FIXME: It would be great to suppress the below diagnostic all together.
   //        but for now it's sufficient that it appears last. However there is
   //        currently no way to test the order diagnostics are issued.
-  // expected-error@memory:* {{call to implicitly-deleted default constructor of 'std::__1::hash<std::__1::pair<int, int> >'}}
+  // expected-error@memory:* {{call to implicitly-deleted default constructor of '__compressed_pair_elem}}
   }
   {
     using Set = std::unordered_set<int, BadHashNoCopy>;