[stdlib] Remove workaround for an old clang bug (rdar://18950072).

validation-test/stdlib/SwiftNativeNSBase.swift

@@ -0,0 +1,28 @@
+//===--- SwiftNativeNSBase.swift - Test _SwiftNativeNS*Base classes -------===//
+//
+// 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: rm -rf %t  &&  mkdir -p %t
+// 
+// RUN: %target-clang %S/Inputs/SwiftNativeNSBase/SwiftNativeNSBase.m -c -o %t/SwiftNativeNSBase.o -g
+// RUN: %target-build-swift %s -I %S/Inputs/SwiftNativeNSBase/ -Xlinker %t/SwiftNativeNSBase.o -o %t/SwiftNativeNSBase
+// RUN: %target-run %t/SwiftNativeNSBase
+// REQUIRES: executable_test
+
+// REQUIRES: objc_interop
+
+import Foundation
+
+@_silgen_name("TestSwiftNativeNSBase") 
+func TestSwiftNativeNSBase()
+
+TestSwiftNativeNSBase()
+// does not return