Test case suggestion

[Ms2ger]

I got the report that Chrome does not match other implementations in parsing the following example:

 <b><em><foo><foo><foo><aside></b></em>

Probably it's worth adding to the test suite if no similar case exists yet.

[javifernandez]

Probably it's worth adding to the test suite if no similar case exists yet.

The html/syntax/parsing/html5lib_webkit02.html covers such test case, indeed.

The current wpt.fyi shows results where this case fails only in Chrome.