[fpc-pascal] COM interfaces support in FPC 2.2.2 Win64

[Eric Grange]

I've tried with FPC 2.2.5 (taken from the Lazarus daily snapshots page),
and the same RunError(1) is still happening in the same place...

I can wrap up a test case as one lpr + one header unit, though to test
it, one requires a Win64 machine with the Office 2007 64bit IFilters
pack installed on it.

Eric