RFR: JDK-8310584: GetThreadState reports blocked and runnable for pinned suspended virtual threads

[Alex Menkov]

The change fixes handling of "suspended" bit in VT state.
The code looks very strange.
java_lang_VirtualThread::RUNNING == 3, so line 803 clears JVMTI_THREAD_STATE_ALIVE(1) and JVMTI_THREAD_STATE_TERMINATED(2)
Per log this code came from loom repo with VT integration.

Testing: tier1-4, updated GetThreadStateMountedTest.java

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Commit messages:
 - fix

Changes: https://git.openjdk.org/jdk/pull/14878/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14878&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8310584
  Stats: 4 lines in 2 files changed: 0 ins; 3 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/14878.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14878/head:pull/14878

PR: https://git.openjdk.org/jdk/pull/14878