Tests: Really fix tests in IE 8 this time

IE 8 doesn't have indexOf on arrays. Also, one toLowerCase() was missing. Oops.

This commit is not necessary on master but has been brought here to keep
tests similar in both branches.

(cherry-picked from 1b48eef)

test/data/testinit.js

@@ -271,7 +271,7 @@ QUnit.config.autostart = false;
 this.loadTests = function() {
 	var loadSwarm,
 		url = window.location.search,
-		basicTests = url.substring( 1 ).split( "&" ).indexOf( "module=basic" ) > -1;
+		basicTests = jQuery.inArray( "module=basic", url.substring( 1 ).split( "&" ) ) > -1;
 
 	url = decodeURIComponent( url.slice( url.indexOf( "swarmURL=" ) + "swarmURL=".length ) );
 	loadSwarm = url && url.indexOf( "http" ) === 0;

test/unit/basic.js

@@ -200,7 +200,7 @@ QUnit.test( "manipulation", function( assert ) {
 
 		// Support: IE 8 only
 		// IE 8 prints tag names in upper case.
-		elem1.html(),
+		elem1.html().toLowerCase(),
 		"<div></div><b></b><span></span><a></a>",
 		".after/.before"
 	);