* doc/tm.texi (STATIC_CHAIN, STATIC_CHAIN_INCOMING): Remove.
        (TARGET_STATIC_CHAIN): Mention that this hook must be used for
        static chain passed in memory.
        * system.h (STATIC_CHAIN, STATIC_CHAIN_INCOMING): Poison.
        * targhooks.c (default_static_chain): Don't handle STATIC_CHAIN,
        STATIC_CHAIN_INCOMING.  Issue a sorry if there's no
        STATIC_CHAIN_REGNUM defined.

        * config/picochip/picochip-protos.h: s/class/klass/.
        * config/picochip/picochip.c (TARGET_STATIC_CHAIN): New.
        (picochip_static_chain): New.
        * config/picochip/picochip.h (STATIC_CHAIN): Remove.
        (STATIC_CHAIN_INCOMING): Remove.

        * config/xtensa/xtensa.c (TARGET_STATIC_CHAIN): New.
        (xtensa_static_chain): New.
        * config/xtensa/xtensa.h (STATIC_CHAIN, STATIC_CHAIN_INCOMING):
        * Remove.

From-SVN: r152104