perf(events): ionDrag events are not zone wrapped

src/components/item/item-sliding.ts

@@ -404,7 +404,7 @@ export class ItemSliding {
     this.item.setElementStyle(CSS.transform, `translate3d(${-openAmount}px,0,0)`);
     let ionDrag = this.ionDrag;
     if (ionDrag.observers.length > 0) {
-      this._zone.run(ionDrag.emit.bind(ionDrag, this));
+      ionDrag.emit(this);
     }
   }
 

src/components/menu/menu.ts

@@ -471,7 +471,7 @@ export class Menu {
 
     let ionDrag = this.ionDrag;
     if (ionDrag.observers.length > 0) {
-      this._zone.run(ionDrag.emit.bind(ionDrag, stepValue));
+      ionDrag.emit(stepValue);
     }
   }