validation-test/Sema/type_checker_crashers_fixed/rdar27879334.swift

// RUN: not %target-swift-frontend %s -typecheck

class N {}

class C {
  var number: N!
  var int64: Int64 = 0
}

let c: C? = C()
_ = (c!.number ?? 0) == (c?.int64 ?? 0)