ModuleSystem panic

[weaversa]

It seems that Cryptol panics if a file includes a file that imports a module.

$ more modA.cry
module modA where

x = 1
$ more include.cry 
import modA

y = 3
$ more main.cry 
include "include.cry"

z = 3
$ cryptol main.cry 
┏━╸┏━┓╻ ╻┏━┓╺┳╸┏━┓╻  
┃  ┣┳┛┗┳┛┣━┛ ┃ ┃ ┃┃  
┗━╸╹┗╸ ╹ ╹   ╹ ┗━┛┗━╸
version 2.12.0.99
https://cryptol.net  :? for help

Loading module Cryptol
Loading module Main
cryptol: You have encountered a bug in Cryptol's implementation.
*** Please create an issue at https://github.com/GaloisInc/cryptol/issues

%< --------------------------------------------------- 
  Revision:  UNKNOWN
  Branch:    UNKNOWN
  Location:  ModuleSystem
  Message:   Interface not available
             modA
CallStack (from HasCallStack):
  panic, called at src/Cryptol/Utils/Panic.hs:21:9 in cryptol-2.12.0.99-inplace:Cryptol.Utils.Panic
  panic, called at src/Cryptol/ModuleSystem/Monad.hs:475:18 in cryptol-2.12.0.99-inplace:Cryptol.ModuleSystem.Monad
%< --------------------------------------------------- 

[yav]

The issue here is that before loading a module, we need to load its dependencies. The problem arises because we are computing the dependencies from the parsed modules, but before includes are resolved, and as a result dependencies arising from included files are missed.