Tooling does not offer to open namespace for attributes applied to method arguments of interfaces..

[voroninp]

Is your feature request related to a problem? Please describe.
I expect tooling to work consistently, but VS does not offer to open System.Runtime.InteropServices namespace for [<Optional>] and [<DefaultParameterValue>] attributes applied to method arguments.

This is actually not only about theses attributes, but a general issue.

module Bar = 
    [<AttributeUsage(AttributeTargets.Parameter)>]
    type MyAttribute() = inherit Attribute()

type IFoo =
    abstract bar: [<My>] value: string -> string

type Foo() =
    member this.Bar([<My>] value:string) = value

VS offers to open module for My in Foo, but fails to do so for IFoo

[psfinaki]

Okay this still holds, I reclassified this as a feature improvement since we have a code fix for this, it just should have a broader application.