Disallow implicit function templates in local functions unless defining a lambda.

gcc/cp/
	PR c++/59112
	PR c++/59113
	* parser.c (cp_parser_parameter_declaration_clause): Disallow implicit
	function templates in local functions unless defining a lambda.

gcc/testsuite/
	PR c++/59112
	PR c++/59113
	g++.dg/cpp1y/pr58533.C: Updated testcase.
	g++.dg/cpp1y/pr59112.C: New testcase.
	g++.dg/cpp1y/pr59113.C: New testcase.

From-SVN: r205343

gcc/cp/ChangeLog

+2013-11-25  Adam Butcher  <adam@jessamine.co.uk>
+
+	PR c++/59112
+	PR c++/59113
+	* parser.c (cp_parser_parameter_declaration_clause): Disallow implicit
+	function templates in local functions unless defining a lambda.
+
 2013-11-23  Easwaran Raman  <eraman@google.com>
 
 	PR c++/59031

gcc/cp/parser.c

@@ -18042,7 +18042,9 @@ cp_parser_parameter_declaration_clause (cp_parser* parser)
   (void) cleanup;
 
   if (!processing_specialization)
-    parser->auto_is_implicit_function_template_parm_p = true;
+    if (!current_function_decl
+	|| (current_class_type && LAMBDA_TYPE_P (current_class_type)))
+      parser->auto_is_implicit_function_template_parm_p = true;
 
   /* Peek at the next token.  */
   token = cp_lexer_peek_token (parser->lexer);

gcc/testsuite/ChangeLog

+2013-11-25  Adam Butcher  <adam@jessamine.co.uk>
+
+	PR c++/59112
+	PR c++/59113
+	g++.dg/cpp1y/pr58533.C: Updated testcase.
+	g++.dg/cpp1y/pr59112.C: New testcase.
+	g++.dg/cpp1y/pr59113.C: New testcase.
+
 2013-11-25  Terry Guo  <terry.guo@arm.com>
 
 	* gcc.target/arm/thumb2-slow-flash-data.c: New.

gcc/testsuite/g++.dg/cpp1y/pr58533.C

@@ -3,5 +3,5 @@
 
 void foo()
 {
-  void (*fp)(auto); // { dg-error "template" }
+  void (*fp)(auto); // { dg-error "auto|not permitted" }
 }

gcc/testsuite/g++.dg/cpp1y/pr59112.C

+// { dg-do compile }
+// { dg-options "-std=gnu++1y" }
+
+// PR c++/59112
+
+void foo()
+{
+  struct A
+  {
+    A(auto) {} // { dg-error "auto|not permitted" }
+  };
+}

gcc/testsuite/g++.dg/cpp1y/pr59113.C

+// { dg-do compile }
+// { dg-options "-std=gnu++1y" }
+
+// PR c++/59113
+
+void foo()
+{
+  void bar(auto) {} // { dg-error "function-definition|auto|not permitted" }
+}
+
+auto i = 0;