Add ol.source.Vector#forEachFeature function

src/ol/source/vectorsource.exports

@@ -1,3 +1,4 @@
 @exportClass ol.source.Vector ol.source.VectorOptions
 @exportProperty ol.source.Vector.prototype.addFeature
+@exportProperty ol.source.Vector.prototype.forEachFeature
 @exportProperty ol.source.Vector.prototype.getAllFeaturesAtCoordinate

src/ol/source/vectorsource.js

@@ -68,6 +68,17 @@ ol.source.Vector.prototype.addFeature = function(feature) {
 };
 
 
+/**
+ * @param {function(this: T, ol.Feature): S} f Callback.
+ * @param {T=} opt_obj The object to be used a the value of 'this' within f.
+ * @return {S|undefined}
+ * @template T,S
+ */
+ol.source.Vector.prototype.forEachFeature = function(f, opt_obj) {
+  return this.rBush_.forEach(f, opt_obj);
+};
+
+
 /**
  * @param {ol.Coordinate} coordinate Coordinate.
  * @param {function(this: T, ol.Feature): S} f Callback.