[RFC v2 02/38] introduce and use find_target_at

[Tom Tromey]

Pedro> This log entry is now stale.  The to_stratum issue was fixed
Pedro> meanwhile.  (also, this own series makes use of this later on,
Pedro> no need to mention a subsequent series).

Thanks.  The ChangeLog was also a little out of date:

>> * record.h (RECORD_IS_REPLAY): Use find_target_at.

... this no longer appears in the patch.

I've changed the log message to read:

    This patch adds find_target_at to determine whether a target appears
    at a given stratum.  This new function lets us clean up
    find_record_target a bit, and is generally useful.

Let me know what you think.

Tom