[Build] Move aside ASLayoutSpecPlayground-Swift for now, as it is causing an Xcode 8.0-specific build failure.

examples_extra/ASLayoutSpecPlayground-Swift/Sample/Sample.playground/Sources/ASPlayground.swift

@@ -0,0 +1,26 @@
+import PlaygroundSupport
+import AsyncDisplayKit
+
+public protocol ASPlayground: class {
+  func display(inRect: CGRect)
+}
+
+extension ASPlayground {
+  public func display(inRect rect: CGRect) {
+    var rect = rect
+    if rect.size == .zero {
+      rect.size = CGSize(width: 400, height: 400)
+    }
+
+    guard let nodeSelf = self as? ASDisplayNode else {
+      assertionFailure("Class inheriting ASPlayground must be an ASDisplayNode")
+      return
+    }
+
+    let constrainedSize = ASSizeRange(min: rect.size, max: rect.size)
+    _ = ASCalculateRootLayout(nodeSelf, constrainedSize)
+    nodeSelf.frame = rect
+    PlaygroundPage.current.needsIndefiniteExecution = true
+    PlaygroundPage.current.liveView = nodeSelf.view
+  }
+}