Mark some more tests as asserting in debug, because of
https://bugs.webkit.org/show_bug.cgi?id=105986

* platform/mac/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146009 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[ENCHANT] Invalid charset encoding used for spelling guess context menu items
https://bugs.webkit.org/show_bug.cgi?id=112516

Patch by Carlos Garcia Campos <cgarcia@igalia.com> on 2013-03-17
Reviewed by Gustavo Noronha Silva.

Convert spelling guesses returned by enchant to UTF-16 before
passing them to WebCore.

* platform/text/enchant/TextCheckerEnchant.cpp:
(WebCore::TextCheckerEnchant::getGuessesForWord): Use
String::fromUTF8().

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146010 268f45cc-cd09-0410-ab3c-d52691b4dbfc