backtrace_eval_unrewind 4042 src/eval.c       backtrace_eval_unrewind (distance);
backtrace_eval_unrewind 4043 src/eval.c       record_unwind_protect_int (backtrace_eval_unrewind, -distance);
backtrace_eval_unrewind 4077 src/eval.c       backtrace_eval_unrewind (distance);
backtrace_eval_unrewind 4115 src/eval.c       backtrace_eval_unrewind (-distance);