[lworld] RFR: 8252040: [lworld] Execute compiler unit tests in random order [v2]

[Tobias Hartmann]

> - Profiling of callee methods depends on execution order of unit tests. Execute tests in random order to increase
>   coverage.
> - At double field to test inline type
> - Verify that expected NPEs are always thrown
> - Fixed a test bug in TestLWorldProfiling.java (array element is not re-initialized and therefore NULL)
> - Refactoring and removal of old, non-applicable TODOs

Tobias Hartmann has updated the pull request incrementally with one additional commit since the last revision:

  Disable shuffling by default until all bugs are fixed

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

Changes:
  - all: https://git.openjdk.java.net/valhalla/pull/154/files
  - new: https://git.openjdk.java.net/valhalla/pull/154/files/a09cd5cd..02685bc8

Webrevs:
 - full: https://webrevs.openjdk.java.net/valhalla/154/webrev.01
 - incr: https://webrevs.openjdk.java.net/valhalla/154/webrev.00-01

  Stats: 18 lines in 2 files changed: 12 ins; 2 del; 4 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/154.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/154/head:pull/154

PR: https://git.openjdk.java.net/valhalla/pull/154