Compilation should fail when constant is defined as itself

[ondrejsevcik]

Hi, take a look at the following code

import Html exposing (text)

status =
  status

main =
  text <| toString status

is it ok that it's possible to compile a program like this? I had a bug like this in my app and it was a bit hard to find where the error is since the compiler didn't warn me.

[process-bot]

Thanks for the issue! Make sure it satisfies this checklist. My human colleagues will appreciate it!

Here is what to expect next, and if anyone wants to comment, keep these things in mind.

[process-bot]

Thanks for the issue! Make sure it satisfies this checklist. My human colleagues will appreciate it!

Here is what to expect next, and if anyone wants to comment, keep these things in mind.

[jvoigtlaender]

This is tracked in elm/compiler#873.

[jvoigtlaender]

This is tracked in elm/compiler#873.