* when converting Hi() to a shr node, convert the right shr const parameter to
  sinttype, instead of u32inttype. This:
  1) is consistent with what type conversion tshlshrnode.pass_typecheck inserts
     on the right side
  2) avoids the expensive conversion to 32-bit and the even more expensive
     performing the operation in 32-bit on i8086



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26352 3ad0048d-3df7-0310-abae-a5850022a9f2