include/msvcrt: Make sure size_t is properly defined for 64-bit.

[Ge van Geldorp]

> From: Alexandre Julliard
> 
> We really shouldn't be including string.h here. Does this work for
> you?
> 
> diff --git a/dlls/msvcrt/msvcrt.h b/dlls/msvcrt/msvcrt.h
> index fc330ce..dcba4ae 100644
> --- a/dlls/msvcrt/msvcrt.h
> +++ b/dlls/msvcrt/msvcrt.h
> @@ -37,8 +37,6 @@
>  #ifndef __WINE_MSVCRT_H
>  #define __WINE_MSVCRT_H
>  
>  #include <stdarg.h>
> -#include <ctype.h>
> -#include <string.h>
>  
>  #include "windef.h"
>  #include "winbase.h"

Yes, this works fine, both with and without the change to
include/msvcrt/string.h.

Best regards, Ge van Geldorp.