Check that LRA participants are called in reverse order if there are no retries

The LRA spec says that under non failure conditions LRA participants SHOULD be called in reverse order of there enlistment. Note that if retries are required then those participants will be processed out of order (which is fine since the spec does not preclude this).

This JIRA is asking for a test for this behaviour and to provide a fix if they aren't called in reverse order.