Right now we have some functions for casting from Atk objects to the chromium object (AXPlatformNodeAuralinux and BrowserAccessibilityAuralinux). Internally there are some runtime checks using the GLIB object casting macros.

Ideally we should make those checks assert in the scenarios we should not allow (as far as I know, almost all the cases). We don't want to silently fail for a bad cast, but assert.