doc comments should see through attributes

[kjeremy]

Describe the bug

I have a file that defines some functions with associates doc comments:

lib-impl.nix:

{
  /**
    Describe myFunc
  */
  myFunc = x: ...
}

and a default.nix:

{
  inherit (import ./lib-impl.nix {})
    myFunc;
}

In the repl :doc lib.myFunc does not report any documentation.

Expected behavior

Since there's no documentation in the "outer" scope it should be inherited.

nix-env (Nix) 2.24.5

Additional context

Add any other context about the problem here.

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