Patch to support VT_BYREF | VT_I4 in typelib.c _copy_arg

[Erich Hoover]

dlls/oleaut32/typelib.c does not currently support VT_BYREF | VT_I4 in 
_copy_arg, this causes InstallShield to crash when attempting to install 
the demo for "Prince of Persia: Warrior Within" (and probably other 
InstallShield programs as well).  Installation can complete with this 
fix under Win9x w/ Desktop (2K and XP options still fail due to 
"unimplemented function imagehlp.dll.StackWalk64" and non-Desktop fails 
for unknown reason).