RFR: 8370198: Test gc/arguments/TestShrinkHeapInSteps.java crashed: assert(left >= right) failed: avoid underflow [v3]

[Albert Mingkun Yang]

> Add an early-return for outside-heap address in `CollectedHeap::is_in` API.
> 
> While investigating this failure (JDK-8370198), I realized that some java-threads (compiler-threads) in `native` state can invoke `CollectedHeap` APIs. Since heap-resizing occurs inside safepoint but java-threads in `native` state just ignore safepoint, I have added some assert to catch such dangerous uses, where the return value might not be stable.
> 
> Test: tie1-5; can't reproduce the JDK-8370198 with or without this patch for >8000 runs.

Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:

  review

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28393/files
  - new: https://git.openjdk.org/jdk/pull/28393/files/515c739e..1a7bbae0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28393&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28393&range=01-02

  Stats: 17 lines in 2 files changed: 8 ins; 7 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/28393.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28393/head:pull/28393

PR: https://git.openjdk.org/jdk/pull/28393