[SLP][NFC]Unify ScalarToTreeEntries and MultiNodeScalars, NFC#124914

alexey-bataev merged 2 commits intomainllvm/llvm-project:mainfrom

users/alexey-bataev/spr/slpnfcunify-scalartotreeentries-and-multinodescalars-nfcllvm/llvm-project:users/alexey-bataev/spr/slpnfcunify-scalartotreeentries-and-multinodescalars-nfcCopy head branch name to clipboard