Tagging JDK 10 forests and filtering JDK 10 bugs

[Joseph D. Darcy]

Hello,

As you may have seen, Lana has started tagging the JDK 10 forests to 
mark promotion candidates. These roughly correspond to sync points of 
fixes from JDK 9 promoted builds into JDK 10.

As discussed previously, the "hgupdate-sync" label is being applied to 
bugs synced over from JDK 9 into JDK 10. Therefore, as done for the 
update releases, queries and filters for JDK 10 need to screen out bugs 
with "hgupdate-sync" to isolate the fixes unique to the release. A query 
like

     project = JDK AND fixVersion = 10 AND resolution = Fixed AND 
"Resolved In Build" = b01 and
     (labels is empty or labels != hgupdate-sync)

find the 17 fixes unique to JDK 10 in b01, while without the checks on 
the labels, the query returns 415 issues, reflecting several weeks of 
bug fixes in JDK 9.

Thanks,

-Joe