[GOOGLE] handle TYPE_PACK_EXPANSION in lipo_cmp_type

[Dehao Chen]

This patch handles TYPE_PACK_EXPANSION in lipo_cmp_type.

testing on going. OK for google-4_8?

Thanks,
Dehao

Index: gcc/l-ipo.c

===================================================================

--- gcc/l-ipo.c (revision 209226)

+++ gcc/l-ipo.c (working copy)

@@ -676,6 +676,7 @@ lipo_cmp_type (tree t1, tree t2)

     case POINTER_TYPE:

     case REFERENCE_TYPE:

     case COMPLEX_TYPE:

+    case TYPE_PACK_EXPANSION:

       return lipo_cmp_type (TREE_TYPE (t1), TREE_TYPE (t2));

     case ARRAY_TYPE:

       return (TYPE_DOMAIN (t1) == NULL || TYPE_DOMAIN (t2) == NULL