rebase: pass "inmemory" directly to _definedestmap()...
rebase: pass "inmemory" directly to _definedestmap()
We no longer reassign rbsrt.inmemory in _definedestmap(), so we don't
need to pass the whole rebase runtime instance anymore, thus
making it clear that it won't be updated.
Differential Revision:
https://phab.mercurial-scm.org/D2905