* name-lookup.h (global_scope_p): New macro.
        * decl.c (pop_binding_level): Use it.  Don't refer directly to
        global_binding_level.
        (suspend_binding_level): Likewise.
        (global_bindings_p): Likewise.
        (print_other_binding_stack): Likewise.
        (print_binding_stack): Likewise.
        (maybe_push_to_top_level): Likewise.
        (pushdecl_namespace_level): Likewise.
        (cxx_init_decl_processing): Likewise.
        (start_decl): Likewise.
        (cp_finish_decl): Likewise.
        (start_function): Likewise.
        (global_binding_level): Remove.

From-SVN: r67221