Rename _ol_style_Circle_ to CircleStyle

examples/polygon-styles.js

@@ -4,7 +4,7 @@ import GeoJSON from '../src/ol/format/GeoJSON.js';
 import MultiPoint from '../src/ol/geom/MultiPoint.js';
 import VectorLayer from '../src/ol/layer/Vector.js';
 import VectorSource from '../src/ol/source/Vector.js';
-import _ol_style_Circle_ from '../src/ol/style/Circle.js';
+import CircleStyle from '../src/ol/style/Circle.js';
 import Fill from '../src/ol/style/Fill.js';
 import Stroke from '../src/ol/style/Stroke.js';
 import Style from '../src/ol/style/Style.js';
@@ -27,7 +27,7 @@ var styles = [
     })
   }),
   new Style({
-    image: new _ol_style_Circle_({
+    image: new CircleStyle({
       radius: 5,
       fill: new Fill({
         color: 'orange'