Order of base-class constructor calls

[Andrej Mitrovic]

Nope. Private ctors have to be called from within the same module,
whether implicit or not:

test.d:
class Foo
{
    private this() { }  // Error: constructor main.Bar.this no match
for implicit super() call in constructor
}

import test;
class Bar : Foo
{
    this() { }
}

void main()
{
    auto bar = new Bar();
}