Make unmanaged vector layers behave more like ol.FeatureOverlay

* Skipped features need to be hit-detected on unmanaged layers.
* updateWhileAnimating and updateWhileInteracting are recommended to
  achieve the same instant visual feedback that ol.FeatureOverlay had.

src/ol/interaction/modifyinteraction.js

@@ -122,7 +122,9 @@ ol.interaction.Modify = function(options) {
       wrapX: goog.isDef(options.wrapX) ? options.wrapX : false
     }),
     style: goog.isDef(options.style) ? options.style :
-        ol.interaction.Modify.getDefaultStyleFunction()
+        ol.interaction.Modify.getDefaultStyleFunction(),
+    updateWhileAnimating: true,
+    updateWhileInteracting: true
   });
 
   /**

src/ol/interaction/selectinteraction.js

@@ -178,7 +178,9 @@ ol.interaction.Select = function(opt_options) {
       wrapX: options.wrapX
     }),
     style: goog.isDef(options.style) ? options.style :
-        ol.interaction.Select.getDefaultStyleFunction()
+        ol.interaction.Select.getDefaultStyleFunction(),
+    updateWhileAnimating: true,
+    updateWhileInteracting: true
   });
 
   var features = this.featureOverlay_.getSource().getFeaturesCollection();

src/ol/renderer/canvas/canvasvectorlayerrenderer.js

@@ -160,10 +160,11 @@ ol.renderer.canvas.VectorLayer.prototype.forEachFeatureAtCoordinate =
     var resolution = frameState.viewState.resolution;
     var rotation = frameState.viewState.rotation;
     var layer = this.getLayer();
+    var layerState = frameState.layerStates[goog.getUid(layer)];
     /** @type {Object.<string, boolean>} */
     var features = {};
-    return this.replayGroup_.forEachFeatureAtCoordinate(coordinate,
-        resolution, rotation, frameState.skippedFeatureUids,
+    return this.replayGroup_.forEachFeatureAtCoordinate(coordinate, resolution,
+        rotation, layerState.managed ? frameState.skippedFeatureUids : {},
         /**
          * @param {ol.Feature} feature Feature.
          * @return {?} Callback result.

src/ol/renderer/dom/domvectorlayerrenderer.js

@@ -184,10 +184,11 @@ ol.renderer.dom.VectorLayer.prototype.forEachFeatureAtCoordinate =
     var resolution = frameState.viewState.resolution;
     var rotation = frameState.viewState.rotation;
     var layer = this.getLayer();
+    var layerState = frameState.layerStates[goog.getUid(layer)];
     /** @type {Object.<string, boolean>} */
     var features = {};
-    return this.replayGroup_.forEachFeatureAtCoordinate(coordinate,
-        resolution, rotation, frameState.skippedFeatureUids,
+    return this.replayGroup_.forEachFeatureAtCoordinate(coordinate, resolution,
+        rotation, layerState.managed ? frameState.skippedFeatureUids : {},
         /**
          * @param {ol.Feature} feature Feature.
          * @return {?} Callback result.

src/ol/renderer/webgl/webglvectorlayerrenderer.js

@@ -122,7 +122,8 @@ ol.renderer.webgl.VectorLayer.prototype.forEachFeatureAtCoordinate =
         context, viewState.center, viewState.resolution, viewState.rotation,
         frameState.size, frameState.pixelRatio,
         layerState.opacity, layerState.brightness, layerState.contrast,
-        layerState.hue, layerState.saturation, frameState.skippedFeatureUids,
+        layerState.hue, layerState.saturation,
+        layerState.managed ? frameState.skippedFeatureUids : {},
         /**
          * @param {ol.Feature} feature Feature.
          * @return {?} Callback result.