frame_get        1212 vm_backtrace.c     VALUE frame = frame_get(dc, index);
frame_get        1219 vm_backtrace.c     VALUE frame = frame_get(dc, index);
frame_get        1226 vm_backtrace.c     VALUE frame = frame_get(dc, index);
frame_get        1233 vm_backtrace.c     VALUE frame = frame_get(dc, index);