Merge pull request #2474 from apple/scenekit-simplify-code

SceneKit overlay: simplify code

Author: gribozavr

stdlib/public/SDK/SceneKit/SceneKit.swift

@@ -29,9 +29,15 @@ extension SCNVector3 {
     self.z = SCNFloat(z)
   }
   public init(_ x: CGFloat, _ y: CGFloat, _ z: CGFloat) {
-    self.x = SCNFloat(x as NSNumber)
-    self.y = SCNFloat(y as NSNumber)
-    self.z = SCNFloat(z as NSNumber)
+#if os(OSX)
+    self.x = x
+    self.y = y
+    self.z = z
+#elseif os(iOS) || os(tvOS)
+    self.x = SCNFloat(x)
+    self.y = SCNFloat(y)
+    self.z = SCNFloat(z)
+#endif
   }
   public init(_ x: Double, _ y: Double, _ z: Double) {
     self.init(SCNFloat(x), SCNFloat(y), SCNFloat(z))