Shift the ID values up into a range where they will not collide with those
which we use for real data, when we fill the system tables.

Will be merged up to 5.0 where it is needed for 5.0.38.


mysql-test/t/help.test:
  Now that (at least in 5.0) the system tables are filled with real data,
  inserting rows vith ID values 1 .. 5 will fail in release build tests (it did in 5.0.38)
  like it should already have done in customer installations.
  
  Shift the ID values up into a high area where they will not conflict,
  also make the distinct for the different kinds of values (= unique throughout the test).
  
  No change to the logic.