* wrapSummaryHTML() now really need one of three states or an exception
is thrown.
* Moved a parameter incorrectly passed to addHtml() up to the previous
wrapSummaryHtml() code. Per CR on r107919
Changed written by Timo and reviewed by Hashar. This should be harmless.
To enable the feature:
$wgEnableJavaScriptTest = true;
Then head to:
[[Special:JavaScriptTest/qunit]]