Extraction: multiple fixes related with the Not_found encountered by X. Leroy

Cf. coqdev for the details of the bug report.

 - Protect some Hashtbl.find and other risky functions in order to avoid
   as much as possible to end with an irritating Anomaly : Not_found.
 - Re-enable in pp_ocaml_extern the case of a module-file used as
   a module (e.g. module A' := A for A.v) when doing modular extraction.
 - Rework the code that decides to "open" or not modules initially:
   opening A when A contains a submodule B hides the file B even when
   B isn't opened itself, we avoid that now.
 - Fix some tables (sets or maps) used by extraction for which it is
   critical to consider constants/inductives/global_reference _not_
   modulo the equivalence of Elie, but rather via Pervasives.compare.

 Still to do : avoid appearance of '_a in extracted code.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13424 85f007b7-540e-0410-9357-904b9bb8a0f7

0 files changed, 0 insertions, 0 deletions