[PATCH 6/7] winmm: Fix int-to-pointer and pointer-to-int casts warnings.

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=60018

Your paranoid android.


=== debian10 (build log) ===

0164:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.
0183:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.
0163:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.
0182:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.

=== debian10 (build log) ===

0162:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.
0181:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.
0163:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.
0182:err:winediag:MIDIMAP_drvOpen No software synthesizer midi port found, Midi sound output probably won't work.