fix(specs): fix jQuery to jqLite binding on IE8

It appears that this whole time all IE8 unit tests ran only with jqLite. Due to a weird bug in IE[1], we never overwrote jqLite implementation with jQuery, so the tests ran with our jqLite instead.

This affected only IE8 (and likely older) and only in unit testing mode. angular.js - the built artifact binds to jQuery just find.

[1] https://plus.google.com/104744871076396904202/posts/Kqjuj6RSbbT

test/jqLiteSpec.js

@@ -39,6 +39,11 @@ describe('jqLite', function(){
   });
 
 
+  it('should be jqLite when jqLiteMode is on, otherwise jQuery', function() {
+    expect(jqLite).toBe(_jqLiteMode ? jqLiteWrap : _jQuery);
+  });
+
+
   describe('construction', function(){
     it('should allow construction with text node', function(){
       var text = a.firstChild;

test/jquery_alias.js

@@ -1,3 +1,4 @@
 'use strict';
 
-var _jQuery = jQuery;
+var _jQuery = jQuery,
+    _jqLiteMode = false;

test/jquery_remove.js

@@ -1,3 +1,4 @@
 'use strict';
 
-var _jQuery = jQuery.noConflict(true);
+var _jQuery = jQuery.noConflict(true),
+    _jqLiteMode = true;

test/testabilityPatch.js

@@ -28,6 +28,14 @@ if (window.jstestdriver) {
 beforeEach(function(){
   // This is to reset parsers global cache of expressions.
   compileCache = {};
+
+  // workaround for IE bug https://plus.google.com/104744871076396904202/posts/Kqjuj6RSbbT
+  // IE overwrite window.jQuery with undefined because of empty jQuery var statement, so we have to
+  // correct this, but only if we are not running in jqLite mode
+  if (!_jqLiteMode && _jQuery !== jQuery) {
+    jQuery = _jQuery;
+  }
+
   // reset to jQuery or default to us.
   bindJQuery();
   jqLite(document.body).html('');