Print aX or aregX for address registers if DEBUG_REGISTERLIFE is defined.

rgobj.pas, trgobj.generate_interference_graph:
  * pass "regtype" instead of "R_INTREGISTER" to newreg so that "aX" or "aregX" is print for address registers


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25665 3ad0048d-3df7-0310-abae-a5850022a9f2