re PR c++/68278 (internal compiler error with C++14 polymorphic lambda and type alias)

2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68278
	* g++.dg/cpp1y/pr68278.C: New.

From-SVN: r230828

gcc/testsuite/ChangeLog

 2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/68278
+	* g++.dg/cpp1y/pr68278.C: New.
+
+2015-11-24  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR c++/68388
 	* g++.dg/cpp1y/pr68388.C: New.
 

gcc/testsuite/g++.dg/cpp1y/pr68278.C

+// { dg-do compile { target c++14 } }
+
+int main()
+{
+  auto f = []() { return 1; };
+
+  auto q = [=](auto g) {
+    using type = decltype(g(f()));
+  };
+  q([](int x){ return x; });
+}