git: openjdk/jdk: 8257466: Improve enum iteration

[Kim Barrett]

Changeset: 39325272
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2020-12-03 04:26:23 +0000
URL:       https://git.openjdk.java.net/jdk/commit/39325272

8257466: Improve enum iteration

Improve support for iteration on enums that are just range of values, without named enumerators.

Reviewed-by: iklam, lfoltan

! src/hotspot/share/utilities/enumIterator.hpp
+ test/hotspot/gtest/utilities/test_enumIterator.cpp