Rename _ol_source_XYZ_ to XYZ

examples/xyz-esri.js

@@ -2,14 +2,14 @@ import Map from '../src/ol/Map.js';
 import View from '../src/ol/View.js';
 import TileLayer from '../src/ol/layer/Tile.js';
 import {fromLonLat} from '../src/ol/proj.js';
-import _ol_source_XYZ_ from '../src/ol/source/XYZ.js';
+import XYZ from '../src/ol/source/XYZ.js';
 
 
 var map = new Map({
   target: 'map',
   layers: [
     new TileLayer({
-      source: new _ol_source_XYZ_({
+      source: new XYZ({
         attributions: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
             'rest/services/World_Topo_Map/MapServer">ArcGIS</a>',
         url: 'https://server.arcgisonline.com/ArcGIS/rest/services/' +