Fixed this return types for Phaser.GameObjects.Sprite

Author: JasonHK

src/gameobjects/sprite/Sprite.js

@@ -127,7 +127,7 @@ var Sprite = new Class({
      * @param {boolean} [ignoreIfPlaying=false] - If an animation is already playing then ignore this call.
      * @param {integer} [startFrame=0] - Optionally start the animation playing from this frame index.
      *
-     * @return {Phaser.GameObjects.Sprite} This Game Object.
+     * @return {this} This Game Object.
      */
     play: function (key, ignoreIfPlaying, startFrame)
     {

types/phaser.d.ts

@@ -33594,7 +33594,7 @@ declare namespace Phaser {
              * @param ignoreIfPlaying If an animation is already playing then ignore this call. Default false.
              * @param startFrame Optionally start the animation playing from this frame index. Default 0.
              */
-            play(key: string, ignoreIfPlaying?: boolean, startFrame?: integer): Phaser.GameObjects.Sprite;
+            play(key: string, ignoreIfPlaying?: boolean, startFrame?: integer): this;
 
             /**
              * Build a JSON representation of this Sprite.