Bump to v4.12.0.

_mapToArray.js

@@ -1,11 +1,11 @@
 define([], function() {
 
   /**
-   * Converts `map` to an array.
+   * Converts `map` to its key-value pairs.
    *
    * @private
    * @param {Object} map The map to convert.
-   * @returns {Array} Returns the converted array.
+   * @returns {Array} Returns the key-value pairs.
    */
   function mapToArray(map) {
     var index = -1,