* class.c (delete_duplicate_fields_1): Use DECL_DECLARES_TYPE_P
to look for type declarations.
(finish_struct): Deal with templates on the CLASSTYPE_TAGS list.
* cp-tree.h (DECL_DECLARES_TYPE_P): New macro.
(finish_member_class_template): Declare.
* decl.c (pushtag): Put member class templates on the
CLASSTYPE_TAGS list, just as for ordinary member classes.
(pushdecl_class_level): Use DECL_DECLARES_TYPE_P.
(lookup_tag): Look for IDENTIFIER_CLASS_VALUEs, just as with
IDENTIFIER_NAMESPACE_VALUEs.
* parse.y (component_decl): Move code to ...
* semantics.c (finish_member_class_template): New function.
Don't put member class templates on the list of components for a
class.
* pt.c (classtype_mangled_name): Don't try DECL_CONTEXT on types.
In fact, don't use DECL_CONTEXT at all here.
From-SVN: r19918
