[Bug 48480] New: dlls/krnl386.exe16 - thunk.c argument logic incorrect for CallProcEx32W16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48480

            Bug ID: 48480
           Summary: dlls/krnl386.exe16 - thunk.c argument logic incorrect
                    for CallProcEx32W16
           Product: Wine
           Version: 5.0-rc6
          Hardware: x86
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: dirk.niggemann at gmail.com

CallProcEx32W16 takes a 'nrofargs' argument which may have the hight bit set by
the caller (CPEX_DEST_CDECL). Internally the function processes nrofargs in a
for loop but does not clear the high bit before looping.

This line (2475): 

    for (i=0;i<nrofargs;i++)

This needs to be changed to support correct argument counting to:

    for (i=0;i<(nrofargs & ~CPEX_DEST_CDECL);i++)


Otherwise this routine crashes when called with CPEX_DEST_CDECL set.

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