Objective-C API: exceptionHandler needs to be released in JSContext dealloc
https://bugs.webkit.org/show_bug.cgi?id=108378

Reviewed by Filip Pizlo.

JSContext has a (copy) exceptionHandler property that it doesn't release in dealloc. 
That sounds like the potential for a leak. It should be released.

* API/JSContext.mm:
(-[JSContext dealloc]):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141305 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Apple's internal PLT test suite doesn't finish after r141136
https://bugs.webkit.org/show_bug.cgi?id=108380

Reviewed by Alexey Proskuryakov.

Temporarily disable the feature to see if that fixes it.

* loader/cache/CachedResourceLoader.cpp:
(WebCore::CachedResourceLoader::requestResource):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141306 268f45cc-cd09-0410-ab3c-d52691b4dbfc