// RUN: %target-swift-frontend %s -emit-ir

protocol P3 {
  associatedtype T
}

class C : P3 {
  typealias T = Int
}

func superclassConformance1<T>(t: T.T) where T : P3, T : C {}

Add test for fixed crasher in SR-3857 / rdar://problem/30361930.
Add test for fixed crasher in SR-3857 / rdar://problem/30361930.

Recent improvements fixed this crasher that manifested in
IRGen.
