[innerText] Add more tests to setter.html. (#5274)

- Test WebKit's quirky behavior
- Test that TEXTAREA isn't special

BUG=705478

Review-Url: https://codereview.chromium.org/2786903002
Cr-Commit-Position: refs/heads/master@{#460701}



View on GitHub: https://github.com/w3c/web-platform-tests/pull/5274

Received on Thursday, 30 March 2017 18:05:47 UTC