Add a first pass at jsdoc.

[##130415655] #596

src/core/matchers/toEqual.js

@@ -1,5 +1,12 @@
 getJasmineRequireObj().toEqual = function(j$) {
-
+  /**
+   * {@link expect} the actual value to be equal to the expected, using deep equality comparison.
+   * @function
+   * @name matchers#toEqual
+   * @param {Object} expected - Expected value
+   * @example
+   * expect(bigObject).toEqual({"foo": ['bar', 'baz']});
+   */
   function toEqual(util, customEqualityTesters) {
     customEqualityTesters = customEqualityTesters || [];