Commits
Joe Groff committed e0c34d9fcc3
SILGen: 'cast' -> 'dyn_cast' in SILGenExtension::emitObjCConformanceThunks. Allows @objc protocol property requirements to work with existing properties of a class, fixing the immediate problem in <rdar://problem/16284654> and <rdar://problem/16284574> (though there's a still a problem adopting methods of natively ObjC classes as protocol conformances, <rdar://problem/16330856>). Swift SVN r15078