RFR: 8324722: Serial: Inline block_is_obj of subclasses of Generation

Thu Jan 25 14:48:56 UTC 2024

Trivial inlining "caller-sensitive" methods.

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Commit messages:
 - s1-inline-is-obj

Changes: https://git.openjdk.org/jdk/pull/17571/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17571&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8324722
  Stats: 24 lines in 5 files changed: 3 ins; 18 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/17571.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17571/head:pull/17571

PR: https://git.openjdk.org/jdk/pull/17571