Visual studio 6 build fix.

[Rein Klazes]

Hi,

MS Visual C++ v6, when invoking the compiler and other build tools does
the following:

create anonymous pipe;
 duplicate the pipes write handle;
 open's the file NUL

calls CreateProcess starting vcspawn.exe with:
    startup info iohandles set to the 3 handles obtained above;
    the startup info flag STARTF_USESTDHANDLES set;
    create flag CREATE_NEW_CONSOLE set.

the parent process reads from the pipe, and analyses the compiler and
other messages that are obtained that way.

Wine's console startup code is not really expecting this and insists on
creating new stdio handles instead of inheriting them.

The attached patch makes this work properly.

Changelog:
    server	: process.c
    dlls/kernel	: console.c
    A starting process must obey the STARTF_USESTDHANDLES flag, even
    it is starting a new console.

Rein.