Build Stylo (the styling system from servo) by default in all
builds for win32, win64, macOS and linux64 targets. It was
previously enabled for automation builds, so this just changes
the behaviour for local developer builds.
Note that this introduces a new dependency on libclang for the
binding generator. If you're developing on a tier-1 platform,
run `./mach boostrap` to install a working copy. Otherwise
llvm+libclang 4.0.1 is recommended.
Remove the explicit --enable-stylo=build in mozconfig.stylo
in favour of the configure default.
Add mozconfig.stylo to the hazard and debug-asan mozconfigs
so LLVM_CONFIG is defined properly for those builds.
Based on a patch by Bobby Holly in bug 1356991.
MozReview-Commit-ID: C2wRNl7JHpz
--HG--
extra : rebase_source : 1ed7c36a64e25b235a26864592cd7ea969a4cd25
c7c885bcbe