Elements with required acc parent role with presentational role and global WAI-ARIA attribute (Presentational Roles Conflict Resolution)

[giacomo-petri]

Currently, the ARIA specs are not very clear on how elements with global ARIA attributes should behave when they inherit a presentation role. Specifically, in cases where the element requires a specific accessibility parent role and that parent has a presentation role.

I've created WPT tests based on the following PR to monitor this behavior: w3c/aria#2237

[cookiecrook]

As of today, WPT PR 54126 is approved for merge, but there is an upstream ARIA PR 2237 that is still cycling through review, so the latter is the blocking issue.