Misc JSDoc fixes. (#2747)

core/block.js

@@ -914,7 +914,7 @@ Blockly.Block.prototype.getColourBorder = function() {
   var colour = this.getColour();
   return {
     colourBorder: null,
-    colourLight: Blockly.utils.colour.blend('white',colour,  0.3),
+    colourLight: Blockly.utils.colour.blend('white', colour, 0.3),
     colourDark: Blockly.utils.colour.blend('black', colour, 0.2)
   };
 };

core/field_colour.js

@@ -245,13 +245,13 @@ Blockly.FieldColour.COLUMNS = 7;
  * Set a custom colour grid for this field.
  * @param {Array.<string>} colours Array of colours for this block,
  *     or null to use default (Blockly.FieldColour.COLOURS).
- * @param {Array.<string>} opt_titles Optional array of colour tooltips,
+ * @param {Array.<string>=} opt_titles Optional array of colour tooltips,
  *     or null to use default (Blockly.FieldColour.TITLES).
  * @return {!Blockly.FieldColour} Returns itself (for method chaining).
  */
 Blockly.FieldColour.prototype.setColours = function(colours, opt_titles) {
   this.colours_ = colours;
-  if (opt_titles !== undefined) {
+  if (opt_titles) {
     this.titles_ = opt_titles;
   }
   return this;

core/keyboard_nav/cursor_svg.js

@@ -29,7 +29,7 @@ goog.require('Blockly.Cursor');
 /**
  * Class for a cursor.
  * @param {!Blockly.Workspace} workspace The workspace to sit in.
- * @param {?boolean} opt_isImmovable True if the cursor cannot be moved with
+ * @param {boolean=} opt_isImmovable True if the cursor cannot be moved with
  *     calls to prev/next/in/out.  This is called a marker.
  * @extends {Blockly.Cursor}
  * @constructor

core/utils/svg_paths.js

@@ -52,7 +52,7 @@ Blockly.utils.svgPaths.point = function(x, y) {
  * These coordinates are unitless and hence in the user coordinate system.
  * @param {string} command The command to use.
  *     Should be one of: c, C, s, S, q, Q.
- * @param {string} points  An array containing all of the points to pass to the
+ * @param {!Array.<string>} points  An array containing all of the points to pass to the
  *     curve command, in order.  The points are represented as strings of the
  *     format ' x, y '.
  * @return {string} A string defining one or more Bezier curves.  See the MDN

core/xml.js

@@ -510,7 +510,7 @@ Blockly.Xml.domToBlock = function(xmlBlock, workspace) {
     var swap = xmlBlock;
     // Closure Compiler complains here because the arguments are reversed.
     /** @suppress {checkTypes} */
-    xmlBlock = workspace;
+    xmlBlock = /** @type {!Element} */ (workspace);
     workspace = swap;
     console.warn('Deprecated call to Blockly.Xml.domToBlock, ' +
                  'swap the arguments.');

demos/blockfactory/block_definition_extractor.js

@@ -49,8 +49,8 @@ BlockDefinitionExtractor.buildBlockFactoryWorkspace = function(block) {
  * inner text.
  *
  * @param {string} name New element tag name.
- * @param {Map<String,String>} opt_attrs Optional list of attributes.
- * @param {string?} opt_text Optional inner text.
+ * @param {!Object.<string, string>=} opt_attrs Optional list of attributes.
+ * @param {string=} opt_text Optional inner text.
  * @return {!Element} The newly created element.
  * @private
  */

demos/blockfactory/block_library_controller.js

@@ -36,7 +36,7 @@
  * Block Library Controller Class
  * @param {string} blockLibraryName Desired name of Block Library, also used
  *    to create the key for where it's stored in local storage.
- * @param {!BlockLibraryStorage} opt_blockLibraryStorage Optional storage
+ * @param {!BlockLibraryStorage=} opt_blockLibraryStorage Optional storage
  *    object that allows user to import a block library.
  * @constructor
  */

demos/blockfactory/block_library_storage.js

@@ -31,7 +31,7 @@
  * Represents a block library's storage.
  * @param {string} blockLibraryName Desired name of Block Library, also used
  *    to create the key for where it's stored in local storage.
- * @param {Object} opt_blocks Object mapping block type to XML.
+ * @param {!Object=} opt_blocks Object mapping block type to XML.
  * @constructor
  */
 function BlockLibraryStorage(blockLibraryName, opt_blocks) {