As a follow-up of #33588 where we suggested in comment:10 to move out of context _repr_fixups list from the header of doctest/parsing.py to the method do_fixup.

CC: @fchapoton @jhpalmieri @kiwifb

Component: doctest framework

Author: Sébastien Labbé

Branch/Commit: 5b539c5

Reviewer: John Palmieri

Issue created by migration from https://trac.sagemath.org/ticket/33680