FIX: [ARM] the >> operator now does arithmetic shifting, while >>> does logical shifting (as in the IA-32 backend).
FIX: [ARM] the >> operator now does arithmetic shifting, while >>> does logical shifting (as in the IA-32 backend).

Fixes non-passing tests for Red shifting functions and operators.

NikolayShubenkovProgSchool/red,NikolayShubenkovProgSchool/red,red-eco/red,vehar/red,red-eco/red,rheber/red,rheber/red,vehar/red