Add tests for structured clone for workers
add a comment clarifying where  is defined
[TTWF Shanghai] Added idlharness test for FileAPI
Update FileAPI IDL to latest editor's draft
Update idlharness tests to reflect #388 cleanup
Test low surrogates too. And paired surrogates in CESU-8 in Blobs.
Fix some things I missed around surrogates
Fix whitespace
Fix typo
Elaborate in the ES spec comment
Test RegExp sticky/unicode
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
Fix typo
Merge pull request #75 from zcorpan/submission/Opera/worker-structured-clone

Add tests for structured clone for workers
Merge pull request #581 from Ms2ger/interfaces-update

Update html/semantics/interfaces.html.
Move files out of Workers into workers.