rename in examples

examples/xyz-esri-4326-512.js

@@ -1,4 +1,4 @@
-import _ol_Map_ from '../src/ol/Map.js';
+import Map from '../src/ol/Map.js';
 import _ol_View_ from '../src/ol/View.js';
 import TileLayer from '../src/ol/layer/Tile.js';
 import _ol_source_XYZ_ from '../src/ol/source/XYZ.js';
@@ -9,7 +9,7 @@ var tileSize = 512;
 var urlTemplate = 'https://services.arcgisonline.com/arcgis/rest/services/' +
     'ESRI_Imagery_World_2D/MapServer/tile/{z}/{y}/{x}';
 
-var map = new _ol_Map_({
+var map = new Map({
   target: 'map',
   layers: [
     new TileLayer({