Hi all, after [JDK-8330694](https://bugs.openjdk.org/browse/JDK-8330694) which renamed HeapRegion to G1HeapRegion, there were a few related helper classes in this CR that were not renamed.
It's purely mechanical renaming without even further renaming of files etc. This change updates them. (Fwiw, the "Viewed" checkbox at the top right of the file change helps a lot review this change incrementally) Testing: tier1, tier4, tier5 Thanks, Thomas ------------- Commit messages: - 8331385 Changes: https://git.openjdk.org/jdk/pull/19967/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19967&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8331385 Stats: 887 lines in 68 files changed: 163 ins; 165 del; 559 mod Patch: https://git.openjdk.org/jdk/pull/19967.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19967/head:pull/19967 PR: https://git.openjdk.org/jdk/pull/19967
