The first part is the functional change,
the second is needed as a compile fix on Windows
(header file order).

| committer: Marc Alff <marc.alff@oracle.com>
| branch nick: mysql-5.5-bugfixing-56521
| timestamp: Thu 2010-09-09 14:28:47 -0600
| message:
|   Bug#56521 Assertion failed: (m_state == 2), function allocated_to_free, pfs_lock.h (138)
|
|   Before this fix, it was possible to build the server:
|   - with the performance schema
|   - with a dummy implementation of my_atomic (MY_ATOMIC_MODE_DUMMY).
|
|   In this case, the resulting binary will just crash,
|   as this configuration is not supported.
|
|   This fix enforces that the build will fail with a compilation error in this
|   configuration, instead of resulting in a broken binary.

| committer: Tor Didriksen <tor.didriksen@oracle.com>
| branch nick: 5.5-bugfixing-56521
| timestamp: Fri 2010-09-10 11:10:38 +0200
| message:
|   Header files should be self-contained