Transparent compiler doesn't respect #nowarn in test.

[nojaf]

Description

This is more of an issue than a PR but:

I'm able to compile this fsc "@Foo.rsp both with and without --test:GraphBasedChecking.
However, running this from TypeCheck last file in project with transparent compiler doesn't work for me with the transparent compiler.

I get

while Foo.fs has the #nowarn "40"

module Meh

let bar (name:string) : 'a = failwith<'a> "todo"

#nowarn "40"

type Foo () =
    member __.Bar (name : string) : unit -> 'a =
            let rec prov : (unit -> 'a) ref = ref (fun () ->
                let p : (unit -> 'a) = bar name
                prov := p
                p())
            fun () -> (!prov)()

Fixes # (issue, if applicable)

Checklist

• Test cases added

• Performance benchmarks added in case of performance changes

• Release notes entry updated:

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  • If language feature was added (i.e. LanguageFeatures.fsi was changed), please add it to docs/releae-notes/.Language/preview.md
  • If a change to FSharp.Core was made, please make sure to edit docs/release-notes/.FSharp.Core/<version>.md where version is "highest" one, e.g. 8.0.200.

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  Example:

  • More inlines for Result module. (PR #16106)
  • Correctly handle assembly imports with public key token of 0 length. (Issue #16359, PR #16363)
    *while! (Language suggestion #1038, PR #14238)

  If you believe that release notes are not necessary for this PR, please add NO_RELEASE_NOTES label to the pull request.

[github-actions]

✅ No release notes required

[0101]

Yeah it's a bug. ApplyNoWarnsToTcConfig(TcConfig, ParseTree, fileName) has to happen at the correct time, which gives us correct diagnostics options.

Currently this is only handled in ParseAndCheckFileInProject but not in ComputeParseAndCheckProject. It might be a bit more tricky there since we need to process each file separately.

[nojaf]

Closing in favour of #16667
Great work @dawedawe!