RFR: 8310829: guarantee(!HAS_PENDING_EXCEPTION) failed in ExceptionTranslation::doit [v6]

[Doug Simon]

> The VMSupport class is required for translating an exception between the HotSpot and libgraal heaps.
> Loading it lazily can result in a loading exception, obscuring the exception being translated.
> To avoid this, VMSupport is loaded eagerly along with the other vmClasses.

Doug Simon has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:

 - [skip ci] Merge remote-tracking branch 'openjdk-jdk/master' into JDK-8310829
 - [skip ci] handle pending HotSpot exception closer to site causing exception
 - revert to lazy loading of VMSupport
 - each exception translation failure should trigger a JVMCI event
 - try harder to show nested exception during exception translation
 - resolve VMSupport at bootstrap to avoid nested exception in ExceptionTranslation::doit

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/14641/files
  - new: https://git.openjdk.org/jdk/pull/14641/files/9236128a..e46a6a17

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14641&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14641&range=04-05

  Stats: 13222 lines in 537 files changed: 6305 ins; 3442 del; 3475 mod
  Patch: https://git.openjdk.org/jdk/pull/14641.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14641/head:pull/14641

PR: https://git.openjdk.org/jdk/pull/14641