[NFC][CFI][CodeGen] Move GeneralizeFunctionType out of CreateMetadataIdentifierGeneralized#158190

vitalybuka merged 8 commits intomainllvm/llvm-project:mainfrom

users/vitalybuka/spr/nfccficodegen-move-generalizefunctiontype-out-of-createmetadataidentifiergeneralizedllvm/llvm-project:users/vitalybuka/spr/nfccficodegen-move-generalizefunctiontype-out-of-createmetadataidentifiergeneralizedCopy head branch name to clipboard