Spec: class ABI is wrong about order of interfaces vptr and class fields

[dkorpel]

https://dlang.org/spec/abi.html#classes

It says interfaces come right after __monitor before any inherited class fields, but everything from the base class always comes before everything from the derived class. The table rows should be swapped.

Demonstration program:

interface H { void h(); }
interface I { void f(); }
interface J { void g(); }

class C : H
{
	ulong[2] x = 0x11111111;

	override void h() {}
}

class D : C, I, J
{
	ulong[2] y = 0x22222222;

    override void f() {}
    override void g() {}
}

import std;

void main()
{
    D c = new D();

	foreach (i; 0 .. 9)
	{
		writeln(i, " ", *cast(void**) ((cast(void*) c) + i*8));
	}
}

0 55C933DD85B0 // vptr
1 null         // Object.__monitor
2 55C933DD83E8 // C's interface H.vptr
3 11111111     // C fields
4 11111111           
5 55C933DD8578 // D's interface I.vptr
6 55C933DD8588 // D's interface J.vptr
7 22222222     // D fields
8 22222222

[ibuclaw]

FWIW, inheritance ABI is same as C++ classes.