REGRESSION(r140392): InjectIDBKeyTest.TopLevelPropertyStringValue is crashing
https://bugs.webkit.org/show_bug.cgi?id=107578

Unreviewed build fix. Disabled 2 tests that are crashing after r140392.

* tests/IDBBindingUtilitiesTest.cpp:
(WebKit::TEST_F):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@140449 268f45cc-cd09-0410-ab3c-d52691b4dbfc