hlint diagnostics not working

[eko234]

Subject of the issue

hlint diagnostics not working

Your environment

Tool versions found on the $PATH
cabal: Not found
stack: 2.3.3
ghc: Not found

-- i'm using ghc-8.8.4

• Which lsp-client do you use
  kak-lsp

• Describe your project (alternative: link to the project)
  the base result of runngin "stack new "

• Contents of hie.yaml
  cradle:
  stack:

  • path: "./src"
    component: "testerino:lib"

  • path: "./app/Main.hs"
    component: "testerino:exe:testerino-exe"

  • path: "./app/Paths_testerino.hs"
    component: "testerino:exe:testerino-exe"

  • path: "./test"
    component: "testerino:test:testerino-test"

Steps to reproduce

i write some flawed lines like f = (_ -> True), which when
using hie in the same editor yields a diagnostic saying i should use (const True) instead, or at least output something
in the diagnostics buffer

Expected behaviour

to actually lint such mistakes listed above

Actual behaviour

nothing

Include debug information

when i see my debug buffer in kakoune 👍 Config-change detected:
LSP: haskell-lsp:configuration parse error. NotificationMessage {_jsonrpc = "2.0", _method = WorkspaceDidChangeConfiguration, _params = DidChangeConfigurationParams {_settings = Object (fromList [])}} "ket " languageServerHaskell" not found"

[fendor]

Hi!
Hlint is not yet supported in HLS, see #166 which is the implementation, but not merged yet.