Added -W flag to test so that MarshalUtils.with doesn't get stomped on by the old-style implicit variable syntax.
Added -W flag to test so that MarshalUtils.with doesn't get stomped on
by the old-style implicit variable syntax.

Can we make -W the default?

FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs