Proposal: simplifying nullable boolean expressions

[michalczerwinski]

Currently if I want to use some nullable bool in if expression we have to explicitly compare it to true or false:

if (this.User?.IsAuthorized == true)
{
}

if (this.User?.IsAuthorized == false)
{
}

It would be really nice to be able to simplify it to:

if (this.User?.IsAuthorized)
{
}

if (!this.User?.IsAuthorized)
{
}

Perhaps it can be achieved by implicit conversion operator for Nullable? Or some other techniques can be applied?

[HaloFour]

See: #2861

[kyoyama-kazusa]

public static implicit extension NullableBooleanExtension for bool?
{
    public static bool operator true(bool? val) => /*logic*/
    public static bool operator false(bool? val) => /*logic*/
}