one bombed test is enough to remind of file structure speed search issues
EA-47322 - PIEAE: LeafPsiElement.invalid
performance: do not decorate task because only the default ScheduledThreadPoolExecutor.ScheduledFutureTask supports fast cancellation (see ScheduledThreadPoolExecutor.DelayedWorkQueue.remove)
AjHighlightingTest
no non-physical elements in dfa inspection
allow overriding duplicate fragment detection