Commits
Doug Gregor committed 6575877124c
[@objc checking] Only 'Error' is representable in Objective-C (as 'NSError'). Don't allow types conforming to 'Error' or protocol compositions involving 'Error' to be reflected in Objective-C. We still allow bridging conversions, but they are not statically bridged. Fixes SR-2249/rdar://problem/27658940.