This module is now in src/.

even compile.

Every semantic action stretch was already parenthesized by the lexer,
so this led only to redundant parentheses.

  which was always [false].
The field [stretch_raw_content] is still required (for ocamltypes) because
there is one place where we use it (a call to [stretch true] in printer.ml)
and it is NOT identical to [stretch_content] (there is padding and
parentheses). Perhaps one could find a way of removing it. For now
I'll just be dumb and leave it alone.

written for ocamlyacc and menhir.