Autocompletion fails for dependencies declared in a configuration block

[andrejp88]

Example dub.sdl:

name "dcd-unittest-bug"

configuration "application" {
    targetType "executable"
}

configuration "unittest" {
    dependency "unit-threaded" version="~>1.0.11"
}

And an example source/app.d (caret is at |):

import std.stdio;

version(unittest)
{
    import unit_threaded : |;
}
else
{
    void main()
    {
        writeln("Edit source/app.d to start your project.");
    }
}

In code-d, with the caret at that position, when I trigger autocompletions it doesn't show me any symbols from unit-threaded. The output pane in VSCode shows the following:

2020-12-01T14:21:58.884 [trace] dcd.d:180:__lambda5 Server: 2020-12-01T14:21:58.884 [warning] complete.d:389:importCompletion Could not resolve location of unit_threaded

If I move unit-threaded out of the "unittest" configuration block then restart VSCode, the autocompletion works. However, I would rather have my test-only dependencies declared in the unittest configuration block in the dub file.

[WebFreak001]

DCD does not do anything with dub, please make an issue on the code-d/serve-d repository instead or reduce it to raw dcd server/client calls.