[DISCUSSION] Ternary nullcoalesce operator

Now we have nullcoalesca operator in PHP: $a = $a ?? $b; And nullcoalesce assignment operator: $a ??= $b; (which is equivalent of previous example with nullcoalesce operator). Also we have a short syntax for ternary operator: $a = $a ?: $b; which is equivalent to: $a = $a ? $b : $a; Maybe we can make a syntax for assignment with short ternary operator? Somethink like that: $a ?:= $b; which would be an equivalent of: $a = $a ?: $b; I now, this looks ugly, but maybe we can find another tokens for this assignments?