TTyApp found when kind checking, but it should have been eliminated already

[ramsdell]

Here is some buggy code that causes an error. (The curly brackets in the function body should not be there.)

$ cat bug.cry
perm_prop : {n} (fin n) => [n][32] -> Bit
perm_prop p = all (\x -> x < `{n}) p
$ cryptol bug.cry
┏━╸┏━┓╻ ╻┏━┓╺┳╸┏━┓╻
┃ ┣┳┛┗┳┛┣━┛ ┃ ┃ ┃┃
┗━╸╹┗╸ ╹ ╹ ╹ ┗━┛┗━╸
version 2.10.0
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: 3cab6e6
Branch: release-2.10.0 (uncommited files present)
Location: doCheckType
Message: TTyApp found when kind checking, but it should have been eliminated already
CallStack (from HasCallStack):
panic, called at src/Cryptol/Utils/Panic.hs:21:9 in cryptol-2.10.0-inplace:Cryptol.Utils.Panic
panic, called at src/Cryptol/TypeCheck/Kind.hs:391:24 in cryptol-2.10.0-inplace:Cryptol.TypeCheck.Kind
%< ---------------------------------------------------

$

[brianhuffman]

With a recent development version, it looks like this doesn't panic anymore. I'm going to do a bit more testing to see exactly which versions have the bug.

[brianhuffman]

Duplicate of #962. It was fixed by #1071.