What

Sometimes, user wants to assign properties in a constructor expression:

type MyClass() =
    member val MyProperty = "" with get, set

let c = MyClass(Property = "")

gives:

The member or object constructor 'MyClass' has no argument or settable return property 'Property'. The required signature is new : unit -> MyClass.

Why

Given the compiler has exact information about MyClass, it could yield more information about what is possible to do in context of constructor expression.

How

The member or object constructor 'MyClass' has no argument or settable return property 'Property', did you mean to assign 'MyProperty' or (*) instead. The required signature is new : unit -> MyClass.

(*) list X other properties (see discussion) that aren't already listed in the constructor expression in decreasing order of likeliness.
#1103