..because aaApply and aaApply2 aren't implemented.

Simple test case:

static assert({
    int[int] aa = [58: 17, 45:6];
    int valsum = 0;
    int keysum = 0;
    foreach(m; aa) { //aaApply
        valsum += m;
    }
    assert(valsum == 17+6);
    valsum = 0;
    foreach(n, m; aa) { //aaApply2
        valsum += m;
        keysum += n;
    }
    assert(valsum == 17+6);
    assert(keysum == 58+45);
    // Check empty AA
    valsum = 0;
    int[int] bb;
    foreach(m; bb) {
        ++valsum;
    }
    assert(valsum == 0);
    return true;
}());