* taddnode.pass_typecheck_internal: always pass a tpointerdef to
  get_int_type_for_pointer_arithmetic, even when adding a zero-based array with
  a number

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28257 3ad0048d-3df7-0310-abae-a5850022a9f2