[Bug, FCS, Tooltips] Parameter name isn't visible in a tooltip when parameter is a tuple

[En3Tho]

Please provide a succinct description of the issue.

Doesn't work when parameter is a tuple:

let receivesTuple thisIsAVeryImportantTupleName =
    let (a, b) = thisIsAVeryImportantTupleName
    a + b

But works when parameter is a struct tuple:

let receivesStructTuple thisIsAVeryImportantTupleName =
    let struct (a, b) = thisIsAVeryImportantTupleName
    a + b

Both in Rider and Visual Studio