Rewrite INNER_THAN so that it takes parameters.
STEP_SKIPS_DELAY - add STEP_SKIPS_DELAY_P and rewrite use removing #ifdef's. NO_SINGLE_STEP - replace with SOFTWARE_SINGLE_STEP_P + SOFTWARE_SINGLE_STEP. Replace global variable one_stepped with static singlestep_breakpoints_inserted_p. Cleanup infrun.c (scary!).
architecture a vector.