Commits
Doug Gregor committed 141c0f90e46
[SILGen] Use the 'Class' existential representation for NSError subclasses. In addition to using the 'Class' existential representation for NSError, use it for subclasses of NSError, which can also be toll-free bridged. Narrowly addresses rdar://problem/27658748. (cherry picked from commit 3f960e306ec93d06d7e1e169273902a78505476a)