Too many misses in BINARY_SUBSCR_LIST_INT

The expression my_list[-1] gets specialized to BINARY_SUBSCR_LIST_INT every time, then it gets deoptimized every time

This leads to 31%ish of BINARY_SUBSCR_LIST_INT executions being misses (on some programs anyway). Edit: this stat was probably not accurate.

Should be an easy fix.

Linked PRs

• gh-100188: Reduce misses in BINARY_SUBSCR_LIST_INT #100189