[analyzer] remove assignments to unused vars without side-effects as well so we do not end up with block-level TFunction nodes
[analyzer] remove assignments to unused vars without side-effects as well so we do not end up with block-level TFunction nodes

pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe