re PR c++/78523 (ICE on valid lambda code with implicit capture)

	PR c++/78523
	* g++.dg/cpp1y/pr78523.C: New test.

From-SVN: r253659

gcc/testsuite/ChangeLog

 2017-10-11  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/78523
+	* g++.dg/cpp1y/pr78523.C: New test.
+
 	PR c++/80194
 	* g++.dg/cpp1y/pr80194.C: New test.
 

gcc/testsuite/g++.dg/cpp1y/pr78523.C

+// PR c++/78523
+// { dg-do compile { target c++14 } }
+
+int bar ();
+
+void
+foo ()
+{
+  const int t = bar ();
+  auto f = [=] (auto x) { return t; };
+  f (0);
+}