prop checking (eval plugin) needs Prelude things to be imported

[Sorokin-Anton]

Your environment

Output of haskell-language-server --probe-tools or haskell-language-server-wrapper --probe-tools:

stack, haskell-language-server version: 1.4.0.0 (GHC: 8.10.6) 

Which OS do you use:
Ubuntu

Which lsp-client do you use:
VS code

Describe your project (alternative: link to the project):
Emty stack project

Contents of hie.yaml:

cradle:
  stack:
    stackYaml: "stack.yaml"

Steps to reproduce

module Foo where

import qualified Prelude as Q
-- prop> 1 Q.== 1

Press Evaluate codelens

Expected behaviour

Test passed successfuly

Actual behaviour

This appears:
-- prop> 1 Q.== 1
-- Not in scope: type constructor or class ‘IO’
-- Perhaps you meant ‘P.IO’ (imported from Prelude)
-- Not in scope: type constructor or class ‘String’
-- Perhaps you meant ‘P.String’ (imported from Prelude)

Prop checking don't work without prelude imported

Include debug information

Execute in the root of your project the command haskell-language-server --debug . and paste the logs here:

Debug output:

<paste your logs here>

Paste the logs from the lsp-client, e.g. for VS Code

LSP logs:

<paste your logs here>

[michaelpj]

Duplicate of #1307, I think