This tests:
Bug 9954 REGRESSION: document.dir should return empty string in <head>
https://bugs.webkit.org/show_bug.cgi?id=9954

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

Read document.dir in head
PASS headReadDocumentDir is ''

Write document.dir in head
PASS headWriteDocumentDir is ''

Read document.dir in body
PASS document.dir is ''

Read document.body.dir in body
PASS document.body.dir is ''

Write document.dir in body
PASS document.dir is 'ltr'

Read document.body.dir in body
PASS document.body.dir is 'ltr'

PASS successfullyParsed is true

TEST COMPLETE