Generate more intuitive name for 'auto' parameters.

	* parser.c (make_generic_type_name): Spell generic type names '<autoN>'
	rather than '__GenN'.

From-SVN: r202849

gcc/cp/ChangeLog

 2013-09-23  Adam Butcher  <adam@jessamine.co.uk>
 
+	* parser.c (make_generic_type_name): Spell generic type names '<autoN>'
+	rather than '__GenN'.
+
+2013-09-23  Adam Butcher  <adam@jessamine.co.uk>
+
 	* lambda.c (maybe_add_lambda_conv_op): Don't check for instantiated
 	callop in the case of generic lambdas.
 

gcc/cp/parser.c

@@ -28902,7 +28902,7 @@ static tree
 make_generic_type_name ()
 {
   char buf[32];
-  sprintf (buf, "__GenT%d", ++generic_parm_count);
+  sprintf (buf, "<auto%d>", ++generic_parm_count);
   return get_identifier (buf);
 }