re PR c++/90236 (bogus error with auto non-type template argument)

	PR c++/90236
	* g++.dg/cpp1z/nontype-auto16.C: New test.

From-SVN: r270557

gcc/testsuite/ChangeLog

+2019-04-24  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/90236
+	* g++.dg/cpp1z/nontype-auto16.C: New test.
+
 2019-04-24  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/90193

gcc/testsuite/g++.dg/cpp1z/nontype-auto16.C

+// PR c++/90236
+// { dg-do compile { target c++17 } }
+
+struct foo { };
+
+template <const auto &> void fnc() { } 
+
+void
+test()
+{
+  static constexpr foo a;
+  fnc<a>();
+}