TEST COMPLETE does not appear at the end of spellchecking tests

TEST COMPLETE does not appear at the end of spellchecking tests

Fix this by setting 'jsTestIsAsync = true' and calling finishJSTest()
when the asynchronous spellchecking tests end.

WebKit changeset: http://trac.webkit.org/changeset/154869

In addition, this CL adjusts the newly created Blink's spelling tests
to dump the messages in right order.

This change showed a bug in spellcheck-disable-enable.html that starts
failing after turning on asynchronous spell checker, added it to
TestExpectations (see crbug.com/282426 for more details).

Some spellchecking tests do not verify anything asynchronously.
Call the body of 'test()' directly instead of calling 'test()'
in onload event. It ensures that the js-test-post.js is invoked at
the end and the messages order is correct.

BUG=

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=157059

[gmorrita, 2013-09-02 03:46:41]

lgtm.

[Hajime Morrita, 2013-09-02 03:48:00]

from correct address :-/

[commit-bot: I haz the power, 2013-09-02 03:48:20]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/g.czajkowski@samsung.com/23444027/1

[commit-bot: I haz the power, 2013-09-02 05:25:11]

Change committed as 157059