[3.13] gh-59000: Fix pdb breakpoint resolution for class methods when… (#142172)

* [3.13] gh-59000: Fix pdb breakpoint resolution for class methods when module not imported (GH-141949)
(cherry picked from commit 5e58548ebe8f7ac8c6cb0bad775912caa4090515)

Co-authored-by: LloydZ <35182391+cocolato@users.noreply.github.com>