for all but range<double>, create arrays instead of range objects * ov.cc (integer_difference, range_numel_aux, range_numel, make_int_range, make_float_range): New functions. (make_char_range): New function, adapted from make_range<char>. (colon_op): Update to use new make_float_range, make_int_range, and make_char_range functions. (make_range<double>, make_range<float>, make_range<char>): Delete. * range.tst: Update tests.