Module Mod_typing

translate_module produces a module_body out of a module_entry. In the output fields:

• mod_expr is Abstract for a MType entry, or Algebraic for MExpr.
• mod_type_alg is None only for a MExpr without explicit signature.

translate_modtype produces a module_type_body whose mod_type_alg cannot be None (and of course mod_expr is Abstract).

Low-level function for translating a module struct entry :

• We translate to a module when a ModPath.t is given, otherwise to a module type.
• The first output is the expanded signature
• The second output is the algebraic expression, kept mostly for the extraction.

From an already-translated (or interactive) implementation and an (optional) signature entry, produces a final module_body

translate_mse_incl translate the mse of a module or module type given to an Include