[3.13] gh-120225: fix crash in compiler on empty block at end of exception handler (GH-120235) (#120249)

gh-120225: fix crash in compiler on empty block at end of exception handler (GH-120235)
(cherry picked from commit 4fc82b6d3b99f873179937215833e7a573ca7876)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>