Right now, AccessibilityObject::supportsPressAction and AccessibilityObject::actionElement do complicated and expensive traversals and heuristics to determine if we can expose otherwise inaccessible click handler elements. For example:

<span onclick="handleClick(this)" style="...styled to look like a button...">
  Open Shopping Cart (inaccessible because there is no role="button")
</span>

We should consider reworking all of these functions to instead expose (compute accessibilityIsIgnored = false) elements with click handlers that have only one accessible descendant, as this will be simpler than our current implementation.

Context: https://bugs.webkit.org/show_bug.cgi?id=253337#c9