Added check for duplicate ordinals, and fixed bug it uncovered in

[wine] / dlls / sti / sti.spec

@ stub DllCanUnloadNow
@ stub DllGetClassObject
@ stub DllRegisterServer
@ stub DllUnregisterServer
@ stdcall StiCreateInstance(ptr long ptr ptr) StiCreateInstance
@ stdcall StiCreateInstanceA(ptr long ptr ptr) StiCreateInstanceA
@ stdcall StiCreateInstanceW(ptr long ptr ptr) StiCreateInstanceW