RFR: 8330534: Update nsk/jdwp tests to use driver instead of othervm [v4]

[Leonid Mesnik]

> The jdwp tests use debugger and debugee. There is no goal to execute debugger part with all VM flags, they are needed to be used with debugee VM only.
> The change is all tests is to don't use System.exit() and use 'driver' instead of othervm.
> test/hotspot/jtreg/vmTestbase/nsk/share/jpda/DebugeeBinder.java
> is updated to correctly set classpath for debugee

Leonid Mesnik 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 five additional commits since the last revision:

 - Merge branch 'master' of https://github.com/openjdk/jdk into 8330534
 - reverted jdi
 - jdi cleanup.
 - identation updated.
 - 8330534: Update nsk/jdwp tests to use driver instead of othervm

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18826/files
  - new: https://git.openjdk.org/jdk/pull/18826/files/842ce512..c38eb004

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18826&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18826&range=02-03

  Stats: 211213 lines in 4196 files changed: 123140 ins; 67888 del; 20185 mod
  Patch: https://git.openjdk.org/jdk/pull/18826.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18826/head:pull/18826

PR: https://git.openjdk.org/jdk/pull/18826