swift

652ff784 - OSSA RAUW helper redesign - split prepareReplacement() vs. perform()

OSSA RAUW helper redesign - split prepareReplacement() vs. perform() Required to fix SILCombine. Divide the logic into smaller pieces. This allows passes to check for replaceability before generating the replacement value. Preparation for simplifying OSSA utilities into smaller logical components making them flexibile and allowing improvements to be staged in.