request: compile-time comparison of constant vectors.

[Book-reader]

It would be nice to be able to compare constant vectors at compile-time.

int[<2>] $foo = {1, 2};
int[<2>] $bar = {3, 4};
$if ($foo == $bar):
$endif

This is not really high priority for me, and if it is not implemented then I would like an error that says that vectors cannot be compared at compile-time instead of the current message that says that they are not compile-time constants.