Move DECL_VINDEX and DECL_SAVED_TREE into function_decl

[Jan Hubicka]

> On 06/23/2014 04:25 PM, Jan Hubicka wrote:
> >	* class.c (check_methods, create_vtable_ptr, determine_key_method,
> >	add_vcall_offset_vtbl_entries_1): Guard VINDEX checks by FUNCTION_DECL check.
> 
> These changes are unnecessary: TYPE_METHODS is a list of functions.

I just double checked and there are template decls in the list, too. Those
always have VINDEX NULL, but with my change they naturally ICEs when you query
it.  I am re-testing the patch with the checks added back and intend to commit.

Honza
> 
> The rest of the patch is OK.
> 
> Jason