[Lazarus] Breaking change

[Martok]

Am 23.07.2017 um 14:24 schrieb Michael Van Canneyt via Lazarus:
>> The pointer-ness of REFIID is an artefact of the C-ABI. It is not meant to mean
>> 'pass a pointer to a GUID-struct', but 'pass a GUID using byref'. We have
>> constref for that.
> 
> See the link to the Windows MSDN.
Yes, so?

REFIID is also the type of the first argument of QueryInterface.
<https://msdn.microsoft.com/en-us/library/windows/desktop/ms682521%28v=vs.85%29.aspx>

    { IUnknown }
    function QueryInterface({$IFDEF
FPC_HAS_CONSTREF}constref{$ELSE}const{$ENDIF} IID: TGUID; out Obj): Hresult;
virtual; {$IFNDEF WINDOWS}cdecl{$ELSE}stdcall{$ENDIF};

But I see already it has been translated differently in every unit (mostly
because MS made it uniform only after the headers were translated), so might as
well use the new one to keep things interesting. Carry on.