Add tests for structured clone for workers
add a comment clarifying where  is defined
Add a test for Blob.close.
Test low surrogates too. And paired surrogates in CESU-8 in Blobs.
Fix some things I missed around surrogates
Fix whitespace
Fix typo
Missing .length causing the test to fail

Added the .length attribute to fix a failing test in Shadow DOM's
csshostrule-attributes test.
Merge pull request #576 from KenjiBaheux/master

Missing .length causing the test to fail
Elaborate in the ES spec comment
Convert files with mostly LF line endings to pure LF
Test RegExp sticky/unicode
Convert files with mostly CRLF line endings to pure CRLF

This in order to make a full CRLF -> LF conversion easier to verify.
Convert files with only CRLF line endings to pure LF

WebIDL/tests/submissions/W3C/valid/idl/documentation-dos.widl was
left as CRLF because the name makes it look intentional.

3 files with mixed line endings remain:

cors/resources/cors-headers.asis
html/semantics/embedded-content-0/the-canvas-element/size.attributes.parse.whitespace.html
old-tests/submission/Opera/media/track/webvtt/parsing/support/newlines.vtt

To verify that this commit makes no other changes:

$ git diff --name-only HEAD^ | xargs unix2dos
$ git diff HEAD^ # should show nothing
Merge pull request #545 from Ms2ger/Blob-close

Add a test for Blob.close.
remove unused directory per https://github.com/w3c/web-platform-tests/issues/105
Merge pull request #580 from deniak/cleanup

remove unused directory per https://github.com/w3c/web-platform-tests/issues/105
- Add tests for the button element
- fix the typo issues
- Resolve issues
1. The assertion of cancelable attribute.
2. The assertion of assertion descriptions.
3. The event handle pattern and etc.
- Update the last assertion of the show event test
- Resolve issues
1. Remove the trailing ws
2. Move evt.preventDefault() into the test
3. Add a test to check the button type, and put the click() method into it.
4. Remove the reset-form.html, etc
- Fix a typo issue in the assertion description
- Use t.step to check the button type
- Update the event registeration method as review sugguestion

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Update html/semantics/interfaces.html.
Test File