RFR: 8330846: Add stacks of mounted virtual threads to the HotSpot thread dump [v7]

[Inigo Mediavilla Saiz]

> Print the stack traces of mounted virtual threads when calling `jcmd <pid> Thread.print`.

Inigo Mediavilla Saiz has updated the pull request incrementally with one additional commit since the last revision:

  Print mounted virtual thread after carrier

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19482/files
  - new: https://git.openjdk.org/jdk/pull/19482/files/6a3b779f..9acbf29d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19482&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19482&range=05-06

  Stats: 11 lines in 2 files changed: 7 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/19482.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19482/head:pull/19482

PR: https://git.openjdk.org/jdk/pull/19482