swift234

Revert "Verifier: Cannonical SIL should have split critical edges for non cond_br"

This reverts commit r22775 as it breaks SILPasses/simplify_cfg_args.sil
and SILPasses/split_critical_edges.sil for me with:

Assertion failed: (!isCriticalEdgePred(BB.getTerminator(), Idx) && "non
cond_br critical edges not allowed"), function verify, file
/Users/dave/src/s/swift/lib/SIL/Verifier.cpp, line 2380.

Swift SVN r22780