[PATCH] GTY skip

[PATCH] GTY skip

[Nathan Sidwell]

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gengtype doesn't understand about struct-scope for typedefs, and 
consequently gets confused if multiple classes define the same-named 
typedef.  The regular default_hash_traits is invisible to gengtype, so 
it doesn't barf on the first specialization, only on the second -- which 
is what I'll be adding soon.

This patch tells gengtype to move along, nothing to see here.

Applied as obvious.

nathan

-- 
Nathan Sidwell

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2017-05-09  Nathan Sidwell  <nathan@acm.org>

	* ipa-devirt.c (default_hash_traits<type_pair>): Skip struct-scope
	typedefs.

Index: ipa-devirt.c
===================================================================
--- ipa-devirt.c	(revision 247784)
+++ ipa-devirt.c	(working copy)
@@ -138,10 +138,11 @@ struct type_pair
 };
 
 template <>
-struct default_hash_traits <type_pair> : typed_noop_remove <type_pair>
+struct default_hash_traits <type_pair>
+  : typed_noop_remove <type_pair>
 {
-  typedef type_pair value_type;
-  typedef type_pair compare_type;
+  GTY((skip)) typedef type_pair value_type;
+  GTY((skip)) typedef type_pair compare_type;
   static hashval_t
   hash (type_pair p)
   {