re PR c++/37208 (C++0x deleted functions and SFINAE)

        PR c++/37208
        * call.c (build_over_call): Make =delete work with SFINAE.
        * class.c (resolve_address_of_overloaded_function): Likewise.

        * cp-tree.h (struct lang_decl_flags): Rename threadprivate_p to
        threadprivate_or_deleted_p.
        (CP_DECL_THREADPRIVATE_P): Adjust.
        (DECL_DELETED_FN): Likewise.
        (SD_UNINITIALIZED, SD_INITIALIZED, SD_DEFAULTED): New macros.
        (SD_DELETED): New macro.
        * parser.c (cp_parser_init_declarator): Use them.
        * decl.c (start_decl): Use them.

        * decl2.c (mark_used): Give =deleted error even in sizeof.

        * typeck2.c (check_narrowing): Downgrade narrowing error to
        permerror.

From-SVN: r139926