RFR: 8371159: [Leyden] assert(false) failed: Attempting to acquire lock

[Igor Veresov]

The reason for the issue is we call `dump_asm_on()` under a tty lock and it, in turn, calls into the CI to get info about klass and that does a training data lookup, which takes the `TrainingData_lock`. The solution to do that without the tty lock, I haven't found the reason on having it in the first place.

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Commit messages:
 - Don't lock tty when calling PhaseOutput::dump_asm_on()

Changes: https://git.openjdk.org/leyden/pull/104/files
  Webrev: https://webrevs.openjdk.org/?repo=leyden&pr=104&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8371159
  Stats: 7 lines in 1 file changed: 1 ins; 4 del; 2 mod
  Patch: https://git.openjdk.org/leyden/pull/104.diff
  Fetch: git fetch https://git.openjdk.org/leyden.git pull/104/head:pull/104

PR: https://git.openjdk.org/leyden/pull/104