The Liberty, Sdf, and Verilog parsers were writing to the same files
causing random failures in parallel builds. position.hh and stack.hh
are removed by switching to 3.0 to 3.2 in the require statement.
location.hh is renamed per-parser with api.location.file.
Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
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