Partial valid-jsdoc corrections

src/ol/source/clustersource.js

@@ -19,7 +19,7 @@ goog.require('ol.source.Vector');
  * Layer source to cluster vector data.
  *
  * @constructor
- * @param {olx.source.ClusterOptions} options
+ * @param {olx.source.ClusterOptions} options Constructor options.
  * @extends {ol.source.Vector}
  * @api
  */
@@ -148,7 +148,7 @@ ol.source.Cluster.prototype.cluster_ = function() {
 
 /**
  * @param {Array.<ol.Feature>} features Features
- * @return {ol.Feature}
+ * @return {ol.Feature} The cluster feature.
  * @private
  */
 ol.source.Cluster.prototype.createCluster_ = function(features) {

src/ol/source/imagecanvassource.js

@@ -13,7 +13,7 @@ goog.require('ol.source.Image');
  *
  * @constructor
  * @extends {ol.source.Image}
- * @param {olx.source.ImageCanvasOptions} options
+ * @param {olx.source.ImageCanvasOptions} options Constructor options.
  * @api
  */
 ol.source.ImageCanvas = function(options) {

src/ol/source/tileutfgridsource.js

@@ -269,7 +269,7 @@ ol.source.TileUTFGridTile_.prototype.getImage = function(opt_context) {
 /**
  * Synchronously returns data at given coordinate (if available).
  * @param {ol.Coordinate} coordinate Coordinate.
- * @return {Object}
+ * @return {Object} The data.
  */
 ol.source.TileUTFGridTile_.prototype.getData = function(coordinate) {
   if (!this.grid_ || !this.keys_ || !this.data_) {
@@ -346,7 +346,7 @@ ol.source.TileUTFGridTile_.prototype.handleError_ = function() {
 
 
 /**
- * @param {!UTFGridJSON} json
+ * @param {!UTFGridJSON} json UTFGrid data.
  * @private
  */
 ol.source.TileUTFGridTile_.prototype.handleLoad_ = function(json) {

src/ol/source/vectorsource.js

@@ -221,8 +221,8 @@ ol.source.Vector.prototype.addFeatureInternal = function(feature) {
 
 
 /**
- * @param {string} featureKey
- * @param {ol.Feature} feature
+ * @param {string} featureKey Unique identifier for the feature.
+ * @param {ol.Feature} feature The feature.
  * @private
  */
 ol.source.Vector.prototype.setupChangeEvents_ = function(featureKey, feature) {
@@ -240,10 +240,10 @@ ol.source.Vector.prototype.setupChangeEvents_ = function(featureKey, feature) {
 
 
 /**
- * @param {string} featureKey
- * @param {ol.Feature} feature
- * @return {boolean} `true` if the feature is "valid", in the sense that it is
- *     also a candidate for insertion into the Rtree, otherwise `false`.
+ * @param {string} featureKey Unique identifier for the feature.
+ * @param {ol.Feature} feature The feature.
+ * @return {boolean} The feature is "valid", in the sense that it is also a
+ *     candidate for insertion into the Rtree.
  * @private
  */
 ol.source.Vector.prototype.addToIndex_ = function(featureKey, feature) {
@@ -536,7 +536,7 @@ ol.source.Vector.prototype.forEachFeatureIntersectingExtent =
  * Get the features collection associated with this source. Will be `null`
  * unless the source was configured with `useSpatialIndex` set to `false`, or
  * with an {@link ol.Collection} as `features`.
- * @return {ol.Collection.<ol.Feature>}
+ * @return {ol.Collection.<ol.Feature>} The collection of features.
  * @api
  */
 ol.source.Vector.prototype.getFeaturesCollection = function() {