RFR: Added VTMT timeout handler [v4]

[Leonid Mesnik]

> Added VTMT timeout handler

Leonid Mesnik has updated the pull request incrementally with one additional commit since the last revision:

  fixed ifdeds

-------------

Changes:
  - all: https://git.openjdk.java.net/loom/pull/61/files
  - new: https://git.openjdk.java.net/loom/pull/61/files/e342c7e0..7b1a46b3

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=61&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=61&range=02-03

  Stats: 14 lines in 2 files changed: 3 ins; 9 del; 2 mod
  Patch: https://git.openjdk.java.net/loom/pull/61.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/61/head:pull/61

PR: https://git.openjdk.java.net/loom/pull/61