Correct jsdoc for Class utilities

Author: englercj

src/utils/Class.js

@@ -66,6 +66,15 @@ function hasNonConfigurable (obj, k)
     return false;
 }
 
+/**
+ * Extends the given `myClass` object's prototype with the properties of `definition`.
+ *
+ * @function Phaser.Class.extend
+ * @param {Object} ctor The constructor object to mix into.
+ * @param {Object} definition A dictionary of functions for the class.
+ * @param {boolean} isClassDescriptor Is the definition a class descriptor?
+ * @param {Object} [extend] The parent constructor object.
+ */
 function extend (ctor, definition, isClassDescriptor, extend)
 {
     for (var k in definition)
@@ -108,6 +117,13 @@ function extend (ctor, definition, isClassDescriptor, extend)
     }
 }
 
+/**
+ * Applies the given `mixins` to the prototype of `myClass`.
+ *
+ * @function Phaser.Class.mixin
+ * @param {Object} myClass The constructor object to mix into.
+ * @param {Object|Array<Object>} mixins The mixins to apply to the constructor.
+ */
 function mixin (myClass, mixins)
 {
     if (!mixins)
@@ -136,7 +152,7 @@ function mixin (myClass, mixins)
  * You can also use `Extends` and `Mixins` to provide subclassing
  * and inheritance.
  *
- * @class  Class
+ * @class Phaser.Class
  * @constructor
  * @param {Object} definition a dictionary of functions for the class
  * @example