[ref] Added (U)IntPtr_t typedefs and some comments related to problems in current Long_t/Lont64_t/pointer<->Long_t handling.
[ref] Added (U)IntPtr_t typedefs and some comments related to problems in current Long_t/Lont64_t/pointer<->Long_t handling.

tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot