bpo-44881: Integrate GC untrack into trashcan begin.#27718

Closed

nascheme wants to merge 3 commits intopython:mainfrom

nascheme:trashcan_begin_gc_untrack

Commits on Aug 10, 2021

Integrate GC untrack into trashcan begin.
nascheme
committed

Commits on Aug 11, 2021

small cleanup, move declarations after
nascheme
committed

Commits on Aug 16, 2021

Add check for GC protocol per @vstinner request
ambv
committed