Since xpidllex.py and xpidlyacc.py are created deep in the
other-licenses/ply code, we can't easily pass in our FileAvoidWrite
handle from the mozbuild action. As a result, when ply writes out
xpidllex.py, the mozbuild action overwrites the contents of the file
with a new 0-length xpidllex.py. This causes future xpidl invocations to
write out a new xpidllex.py rather than using the pre-built one.
MozReview-Commit-ID: NOC1Wr3MZO
--HG--
extra : rebase_source : a364a0f6f47e1c652bd41c90548fe7cbaf516374
33dd807e8a