Commits

Joe Groff committed 8a6e07ff3b7
SILCloner: Apply cloning transformation to the replacement type and conformances in substitutions. This becomes important when opened existentials start to appear in code that gets inlined and specialized--although we remap the opened existentials in operands, we didn't in substitutions until now. NFC yet, but important to upcoming SIL instruction simplifications. Swift SVN r22373