Rename _ol_source_XYZ_ to XYZ

examples/xyz.js

@@ -1,14 +1,14 @@
 import Map from '../src/ol/Map.js';
 import View from '../src/ol/View.js';
 import TileLayer from '../src/ol/layer/Tile.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({
         url: 'https://{a-c}.tile.thunderforest.com/cycle/{z}/{x}/{y}.png' +
             '?apikey=0e6fc415256d4fbb9b5166a718591d71'
       })