arc.h: Define PROMOTE_PROTOTYPES to 1.

arc.h: Define PROMOTE_PROTOTYPES to 1.

        * config/arc/arc.h: Define PROMOTE_PROTOTYPES to 1.
        * config/convex/convex.h: Ditto.
        * config/dsp16xx/dsp16xx.h: Ditto.
        * config/fx80/fx80.h: Ditto.
        * config/gmicro/gmicro.h: Ditto.
        * config/i370/i370.h: Ditto.
        * config/i386/i386.h: Ditto.
        * config/m32r/m32r.h: Ditto.
        * config/m68k/m68k.h: Ditto.
        * config/m88k/m88k.h: Ditto.
        * config/mips/mips.h: Ditto.
        * config/pa/pa.h: Ditto.
        * config/pyr/pyr.h: Ditto.
        * config/tahoe/tahoe.h: Ditto.
        * config/we32k/we32k.h: Ditto.

        * config/sparc/sparc.h: Define PROMOTE_PROTOTYPES
        based on arch size.

        * config/i1750a/i1750a.h: Define PROMOTE_PROTOTYPES to 0.

From-SVN: r28421