REGRESSION: fast/dom/cssTarget-crash.html fails

REGRESSION: fast/dom/cssTarget-crash.html fails
https://bugs.webkit.org/show_bug.cgi?id=20342

Reviewed by Adam Barth.

WebCore:

Do not reload the page when submitting a form, using "GET" method, and the
form action url matches the location url, except for the fragment.

Test: fast/forms/submit-change-fragment.html

* loader/FrameLoader.cpp:
(WebCore::FrameLoader::loadURL):
(WebCore::FrameLoader::loadWithDocumentLoader):
(WebCore::FrameLoader::shouldScrollToAnchor):
* loader/FrameLoader.h:

LayoutTests:

* fast/forms/submit-change-fragment-expected.txt: Added.
* fast/forms/submit-change-fragment.html: Added.
* platform/mac/Skipped:
* platform/qt/Skipped:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@74801 268f45cc-cd09-0410-ab3c-d52691b4dbfc