+ added directive {$HUGEPOINTERARITHMETICNORMALIZATION} to control the
  cs_hugeptr_arithmetic_normalization local setting
+ added the cs_hugeptr_comparison_normalization local setting and corresponding
  directive {$HUGEPOINTERCOMPARISONNORMALIZATION} to set it
* the {HUGEPOINTERNORMALIZATION} changed to set both of the huge pointer
  normalization settings, according to the specified compiler type ('BORLANDC',
  'MICROSOFTC' or 'WATCOMC')

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28151 3ad0048d-3df7-0310-abae-a5850022a9f2