re PR c++/65843 (multiple use of const variable in lamba in template function causes compile error)

	PR c++/65843
	* pt.c (tsubst_copy_and_build): Register a capture proxy in
	local_specializations.

From-SVN: r224676

gcc/cp/ChangeLog

+2015-06-19  Jason Merrill  <jason@redhat.com>
+
+	PR c++/65843
+	* pt.c (tsubst_copy_and_build): Register a capture proxy in
+	local_specializations.
+
 2015-06-17  Jason Merrill  <jason@redhat.com>
 
 	PR c++/66001

gcc/cp/pt.c

@@ -15665,7 +15665,11 @@ tsubst_copy_and_build (tree t,
 	      r = build_cxx_call (wrap, 0, NULL, tf_warning_or_error);
 	  }
 	else if (outer_automatic_var_p (r))
-	  r = process_outer_var_ref (r, complain);
+	  {
+	    r = process_outer_var_ref (r, complain);
+	    if (is_capture_proxy (r))
+	      register_local_specialization (r, t);
+	  }
 
 	if (TREE_CODE (TREE_TYPE (t)) != REFERENCE_TYPE)
 	  /* If the original type was a reference, we'll be wrapped in

gcc/testsuite/g++.dg/cpp0x/lambda/lambda-rep1.C

+// PR c++/65843
+// { dg-do compile { target c++11 } }
+
+template<class T>
+void test(T b)
+{
+    const int a = b;
+    [&] () { return a, a; }();
+}
+
+int main() {
+    test(1);
+ return 0;
+}