class.c (check_methods, [...]): Guard VINDEX checks by FUNCTION_DECL check.
* class.c (check_methods, create_vtable_ptr, determine_key_method,
add_vcall_offset_vtbl_entries_1): Guard VINDEX checks by FUNCTION_DECL check.
* cp-tree.h (lang_decl_ns): Add ns_using and ns_users.
(DECL_NAMESPACE_USING, DECL_NAMESPACE_USERS): Use lang_decl_ns.
(DECL_NAMESPACE_ASSOCIATIONS): Use DECL_INITIAL.
(DECL_TEMPLATE_INSTANTIATIONS): Use DECL_SIZE_UNIT.
* tree.c (find_decls_types_r): Do not check DECL_VINDEX for TYPE_DECL.
* tree.h (DECL_VINDEX, DECL_SAVED_TREE): Restrict to DECL_FUNCTION.
* tree-core.h (tree_decl_non_common): Move saved_tree and vindex...
(tree_function_decl): ... here.
* tree-streamer-out.c (write_ts_decl_non_common_tree_pointers): Move
streaming of vindex to ...
(write_ts_function_decl_tree_pointers): ... here.
* tree-streamer-in.c (lto_input_ts_decl_non_common_tree_pointers):
Do not stream DECL_VINDEX.
(lto_input_ts_function_decl_tree_pointers): Stream it here.