view tests/test-revlog-raw.py.out @ 42028:0cc9d7918754

discovery: prevent deleting items from a dictionary

Removing elements from Python dictionary is expensive. So let's prevent adding
them instead.

I added a newline to make code look a bit better.

Differential Revision: https://phab.mercurial-scm.org/D6146

local test passed
addgroupcopy test passed
clone test passed
lowlevelcopy test passed
slicing test passed
issnapshot test passed
findsnapshot test passed