Debugger doesn't print values of Map type

[nulld]

class Test {
    private var map:Map<Int, Int>;

    public function new() {
        map = [1 => 1, 2 => 2];
        trace(map);
    }

In debugger output

print this.map

this.map : haxe.ds.IntMap =
{
    h : Dynamic = ...
}

6> print this.map.h

this.map.h : Dynamic =
{
}