Quick fix fails to open nested module

[asik]

Repro steps

File1.fs

module File1

module SubModule =

    let Foo = 3

Program.fs

[<EntryPoint>]
let main argv =
    let a = Foo
    0

Use suggestion to add open declaration on Foo.

Expected behavior

Suggests open File1.SubModule

Actual behavior

Suggests open File1
This does not fix the issue and the code still doesn't compile.

Related information

Visual Studio 16.0.2
Visual F# Tools 10.4 for F# 4.6 - 16.0.0.0

[dsyme]

Duplicate of #4223