[jdk17u-dev] RFR: 8280030: [REDO] Parallel: More precise boundary in ObjectStartArray::object_starts_in_range

[Richard Reingruber]

This backport is a transitive dependency for the backport of https://bugs.openjdk.org/browse/JDK-8310031

8310031 requires 8282094: [REDO] Parallel: Refactor PSCardTable::scavenge_contents_parallel
and 8282094 requires this backport.

8310031 could be backported w/o this backport if 8282094 could be squashed into it because with 8310031 `ObjectStartArray::object_starts_in_range()` is not reached anymore from `PSCardTable::scavenge_contents_parallel()`.

This backport applies cleanly but needs a trivial renaming (see 2nd commit).

Risk is low: it's a small change. The changed method has just 2 callers of which one is for diagnostics.

Manual testing on x86_64:
jdk:tier1       TEST_VM_OPTS="-XX:+UseParallelGC"
langtools:tier1 TEST_VM_OPTS="-XX:+UseParallelGC"

Local CI Testing:
The fix passed our CI testing (e.g. 2024-02-22): JTReg tests: tier1-4 of hotspot and jdk. All of Langtools and jaxp. JCK, SPECjvm2008, SPECjbb2015, Renaissance Suite, and SAP specific tests (also with ParallelGC).
Testing was done with fastdebug builds on the main platforms and also on Linux/PPC64le.

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Commit messages:
 - Fix build
 - 8280030: [REDO] Parallel: More precise boundary in ObjectStartArray::object_starts_in_range

Changes: https://git.openjdk.org/jdk17u-dev/pull/2226/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2226&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280030
  Stats: 13 lines in 2 files changed: 9 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2226.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2226/head:pull/2226

PR: https://git.openjdk.org/jdk17u-dev/pull/2226