Proposal: null-conditional assignment

[Ricciolo]

Hi guys!
Since we've null-conditional operator, why we cannot have a null-conditional assignment, like:

string var1 = "value1";
string var2 = null;
var1 ?= var2;`

Assert.AreEqual("value1", var1);

You may say that I can write the same thing using

string var1 = "value1";
string var2 = null;
var1 = var2 ?? var1;

but here I'm setting var1 to var1 even if not necessary.
With null-conditional assignment the compiler produce this code:

string var1 = "value1";
string var2 = null;
if (var2 != null) var1 = var2;

With null-conditional operator instead:

string var1 = "value1";
string var2 = null;
var1 = (var2 != null) ? var2 : var1;

What do you think?

[HaloFour]

Dupe of #10249, #9529, #8894, #5163, #3366 and #205.

The resolution of #205 was "won't fix", so I don't think that the operator is under consideration.

[Ricciolo]

ops, sorry :-(