tests/test-revlog-raw.py.out

tests: use progress helper

With this commit, the only in-tree caller of ui.progress() is
scmutil.progress(). That means that we could deprecate it. It also
means that we can considering inlining it in scmutil.progress.

Differential Revision: https://phab.mercurial-scm.org/D3812

local test passed
addgroupcopy test passed
clone test passed
lowlevelcopy test passed