Merge 113086 - [v8] Fix memory leak in V8LazyEventListener

Merge 113086 - [v8] Fix memory leak in V8LazyEventListener
https://bugs.webkit.org/show_bug.cgi?id=83057

Reviewed by Ojan Vafai.

Source/WebCore:

This also brings the V8 and JSC implementation closer. The timing when we first lookup
the form element is now same in JSC and V8 (but different from Mozilla).

This also clears the strings once the code has been parsed and the function created.

Tests: fast/dom/inline-event-attributes-moved.html
       fast/dom/inline-event-attributes-release.html

* bindings/v8/V8LazyEventListener.cpp:
(WebCore::V8LazyEventListener::V8LazyEventListener):
(WebCore::V8LazyEventListener::prepareListenerObject):
* bindings/v8/V8LazyEventListener.h:
(WebCore::V8LazyEventListener::create):
(V8LazyEventListener):

LayoutTests:

* fast/dom/inline-event-attributes-moved-expected.txt: Added.
* fast/dom/inline-event-attributes-moved.html: Added.
* fast/dom/inline-event-attributes-release-expected.txt: Added.
* fast/dom/inline-event-attributes-release.html: Added.

TBR=arv@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=113393