filectx: remove dependencies on filerev
Removing dependencies on filectx.filerev() makes it easier to create a filelog
implementation that doesn't have rev numbers.
hg: move return statement after finally block
return is always run after finally block. Now we have same functionality,
but clearer readability.
run-tests: call Threads constructor with keyword arguments
This is suggested in the python documentation
(on http://docs.python.org/2/library/threading.html#thread-objects)
run-tests: ignoring tests works again
running with --retest did not work anymore because runone still returned None
for this case. But this is not allowed since
6a127fa5de23.
check-code: introduce function for using re2 when available
Do it similar as in mercurial.util. For simplicity only support flag
multiline which is the only one used.
check-code: compile all patterns on initialisation
They where compiled once for every checked file (when calling finditer).