- Added SHIM_SET_RETURN_32 macro, which sign-extends to 64-bit. - Updated all uses of SHIM_SET_RETURN to the appropriate macro (either SHIM_SET_RETURN_32 or SHIM_SET_RETURN_64).
- Added SHIM_SET_RETURN_32 macro, which sign-extends to 64-bit. - Updated all uses of SHIM_SET_RETURN to the appropriate macro (either SHIM_SET_RETURN_32 or SHIM_SET_RETURN_64).