Address review comments

src/ol/layer/VectorRenderType.js

@@ -3,10 +3,10 @@ goog.provide('ol.layer.VectorRenderType');
 /**
  * @enum {string}
  * Render mode for vector layers:
- *  * `'image'`: Vector tiles are rendered as images. Great performance, but
+ *  * `'image'`: Vector layers are rendered as images. Great performance, but
  *    point symbols and texts are always rotated with the view and pixels are
  *    scaled during zoom animations.
- *  * `'vector'`: Vector tiles are rendered as vectors. Most accurate rendering
+ *  * `'vector'`: Vector layers are rendered as vectors. Most accurate rendering
  *    even during animations, but slower performance.
  * @api
  */

src/ol/renderer/canvas/intermediatecanvas.js

@@ -123,7 +123,7 @@ ol.renderer.canvas.IntermediateCanvas.prototype.forEachLayerAtCoordinate = funct
   }
 
   if (this.getLayer().getSource().forEachFeatureAtCoordinate !== ol.nullFunction) {
-    // for ImageVector sources use the original hit-detection logic,
+    // for ImageCanvas sources use the original hit-detection logic,
     // so that for example also transparent polygons are detected
     return ol.renderer.canvas.Layer.prototype.forEachLayerAtCoordinate.apply(this, arguments);
   } else {

src/ol/renderer/webgl/imagelayer.js

@@ -248,7 +248,7 @@ ol.renderer.webgl.ImageLayer.prototype.forEachLayerAtPixel = function(pixel, fra
   }
 
   if (this.getLayer().getSource().forEachFeatureAtCoordinate !== ol.nullFunction) {
-    // for ImageVector sources use the original hit-detection logic,
+    // for ImageCanvas sources use the original hit-detection logic,
     // so that for example also transparent polygons are detected
     var coordinate = ol.transform.apply(
         frameState.pixelToCoordinateTransform, pixel.slice());