RFR: 8306591: SA and hotspot generate different hprof records for GC roots

[Yasumasa Suenaga]

We can extract heapdump from coredump via `jhsdb jmap --binaryheap`. However GC roots for system classes (`HPROF_GC_ROOT_STICKY_CLASS`) are not available i it even though heapdump from HotSpot contains.

SA should generate `HPROF_GC_ROOT_STICKY_CLASS` into heapdump.

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Commit messages:
 - 8306591: SA and hotspot generate different hprof records for GC roots

Changes: https://git.openjdk.org/jdk/pull/29781/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29781&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306591
  Stats: 50 lines in 5 files changed: 47 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/29781.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29781/head:pull/29781

PR: https://git.openjdk.org/jdk/pull/29781