Deduplicate unreachable blocks, for real this time#110569

Merged

bors merged 2 commits intorust-lang:masterfrom

saethlin:mir-pass-cooperation

Apr 21, 2023

Commits on Apr 20, 2023

Demonstrate the bug
saethlin
committed

Commits on Apr 21, 2023

Run combine_duplicate_switch_targets after the simplification that produces them
saethlin
committed