Piotr Caban (@piotr) commented about dlls/vccorlib140/vccorlib140.spec:
@ stub -arch=win64 ?__abi_ObjectToString@__abi_details@@YAPE$AAVString@Platform@@PE$AAVObject@3@_N@Z @ stub -arch=win32 ?__abi_Resolve@ControlBlock@Details@Platform@@UAGJAAVGuid@3@PAPAU__abi_IInspectable@@@Z @ stub -arch=win64 ?__abi_Resolve@ControlBlock@Details@Platform@@UEAAJAEAVGuid@3@PEAPEAU__abi_IInspectable@@@Z -@ stub -arch=i386 ?__abi_WinRTraiseAccessDeniedException@@YGXXZ -@ stub -arch=arm ?__abi_WinRTraiseAccessDeniedException@@YAXXZ -@ stub -arch=win64 ?__abi_WinRTraiseAccessDeniedException@@YAXXZ
arm and win64 exports are identical and can be merged.