Update web-platform-tests/tools from upstream
Created attachment 400517 [details] Patch
Created attachment 400522 [details] Patch
Created attachment 400531 [details] Patch
Created attachment 400533 [details] Patch
Created attachment 400538 [details] Patch
Created attachment 400586 [details] Patch
Created attachment 400598 [details] Patch
This patch modifies the imported WPT tests. Please ensure that any changes on the tests are exported to WPT. Please see https://trac.webkit.org/wiki/WPTExportProcess
Committed r262312: <https://trac.webkit.org/changeset/262312> All reviewed patches have been landed. Closing bug and clearing flags on attachment 400598 [details].
<rdar://problem/63770438>