Symbols: local functions don't provide parameter names and declaring type info

[auduchinok]

Consider 3 function declarations:

let a x = ()

type T() =
    let b x = ()

do
    let c x = ()
    ()

a provides info about its parameters:

b and c don't:

Without this info it's problematic to provide rich tooling experience, as the features like Parameter Info popup need the parameter names. In addition to that, b doesn't provide its declaring entity.

The apparent difference between a and b or c is that the latter don't return any data from their TypedTree.ValRef.ValReprInfo properties. The data seems to be kept somewhere, as (at least) b has its parameter name compiled.

@dsyme Do you have an idea of how the missing data could be added?

[auduchinok]

It looks like #13061 is caused by the same problem, though this issue is about the missing parameter data, and the other one sounds like it's about the presentation improvement (since parameter can indeed not have a name, and backticks aren't good there).

[kerams]

A dupe of #7080.

[psfinaki]

@auduchinok @kerams thanks for your investigations! Will take this as well.

[psfinaki]

But will assign the other one then, closing this as a dupe.