Merge next-mr -> next-4284.

Cherry-pick a fix Bug#37148 from next-mr, to preserve
file ids of the added files, and ensure that all the necessary
changes have been pulled.

Since initially Bug#37148 was null-merged into 6.0,
the changeset that is now being cherry-picked was likewise
null merged into next-4284.

Now that Bug#37148 has been reapplied to 6.0, try to make
it work with next-4284. This is also necessary to be able
to pull other changes from 5.1-rep into next-4284.

To resolve the merge issues use this changeset applied
to 6.0:
revid:jperkin@sun.com-20091216103628-ylhqf7s6yegui2t9
revno: 3776.1.1
committer: He Zhenxing <zhenxing.he@sun.com>
branch nick: 6.0-codebase-bugfixing
timestamp: Thu 2009-12-17 17:02:50 +0800
message:
  Fix merge problem with Bug#37148

sql/sql_partition.cc

@@ -4377,8 +4377,9 @@ static int fast_end_partition(THD *thd, ulonglong copied,
     DBUG_RETURN(TRUE);                      /* The error has been reported */
 
   if ((!is_empty) && (!written_bin_log) &&
-      (!thd->lex->no_write_to_binlog))
-    write_bin_log(thd, FALSE, thd->query(), thd->query_length());
+      (!thd->lex->no_write_to_binlog) &&
+    write_bin_log(thd, FALSE, thd->query(), thd->query_length()))
+    DBUG_RETURN(TRUE);
 
   my_snprintf(tmp_name, sizeof(tmp_name), ER(ER_INSERT_INFO),
               (ulong) (copied + deleted),