(subst_asm_stack_regs): Cast args to bcopy to char *.

(subst_asm_stack_regs): Cast args to bcopy to char *.

(BLOCK_NUM): Rework to avoid cast of abort to int *.
(find_blocks): Don't use BLOCK_NUM on lhs.
(reg_to_stack, record_arg_reg_life): Cast arg to bzero to char *.

From-SVN: r8392