RFR(T): 8223139: Rename mandatory policy-do routines.

[Patric Hedlin]

Dear all,

I would like to ask for help to review the following change/update:

Issue:  https://bugs.openjdk.java.net/browse/JDK-8223139
Webrev: http://cr.openjdk.java.net/~phedlin/tr8223139/

8223139: Rename mandatory policy-do routines.

     These routines do not implement any policy. The policy is to always
     attempt these transforms if applicable.
     'policy_do_remove_empty_loop' -> 'do_remove_empty_loop'.
     'policy_do_one_iteration_loop' -> 'do_one_iteration_loop'.


Testing: Part of 8216137 (hs-tier1..4, hs-precheckin-comp, Kitchensink24h)


Best regards,
Patric