Merge pull request #3470 from practicalswift/swiftc-28364-swift-typechecker-addimplicitconstructors

Add 💥 (😢 → 66, 😀 → 5108) in swift::TypeChecker::addImplicitConstructors(…)

Author: gribozavr

validation-test/compiler_crashers/28364-swift-typechecker-addimplicitconstructors.swift

@@ -0,0 +1,15 @@
+// This source file is part of the Swift.org open source project
+// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See http://swift.org/LICENSE.txt for license information
+// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+
+// RUN: not --crash %target-swift-frontend %s -parse
+// REQUIRES: asserts
+{
+protocol d{
+func b:B<T>{}typealias e:AnyObject,b
+class d:b
+class b:d
+struct B<>:b