mn10300.c (expand_prologue): End the current sequence before counting the tst insns in the current function.

        * mn10300.c (expand_prologue): End the current sequence before
        counting the tst insns in the current function.  Start a new
        one before emitting any prologue instructions.

        * mn10300.h (REGISTER_MOVE_COST): Bump up cost of moves in the
        same class.

        * mn10300.md (untyped_call): New expander.

From-SVN: r13955