view tests/test-revlog-raw.py.out @ 47269:6be2a7ca4b1d

revlog: do not call Rust code if the index is not compatible with it

This will avoid hitting the TypeError we defined in the previous changesets.
This is the simplest fix but not the most elegant.

Ideally we would teach the Rust code to use any kind of revlog. However this is
an adventure for another time.

Differential Revision: https://phab.mercurial-scm.org/D10666

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