NSKeyedUnarchiver methods should take Data

We missed a few NSKeyedUnarchiver methods during our original renaming
for Swift — some of these methods still take NSData when they can take
Data. We can add Data variants which bridge to NSData to fix this in a
backwards-compatible way.

Author: Itai Ferber

stdlib/public/SDK/Foundation/NSCoder.swift

@@ -144,6 +144,13 @@ extension NSKeyedUnarchiver {
     return result as AnyObject?
   }
 
+  @nonobjc
+  @available(swift, obsoleted: 4)
+  @available(OSX 10.11, iOS 9.0, *)
+  public class func unarchiveTopLevelObjectWithData(_ data: Data) throws -> AnyObject? {
+      return try self.unarchiveTopLevelObjectWithData(data as NSData)
+  }
+
   @nonobjc
   @available(swift, introduced: 4)
   @available(OSX 10.11, iOS 9.0, *)
@@ -153,6 +160,13 @@ extension NSKeyedUnarchiver {
     try resolveError(error)
     return result
   }
+
+  @nonobjc
+  @available(swift, introduced: 4)
+  @available(OSX 10.11, iOS 9.0, *)
+  public class func unarchiveTopLevelObjectWithData(_ data: Data) throws -> Any? {
+      return try self.unarchiveTopLevelObjectWithData(data as NSData)
+  }
 }