[code-reflection] Integrated: more prep for cuda refactor.

[Gary Frost]

More prep work for cuda refactoring.  

Making these common changes before fixiing up on Jetson

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Commit messages:
 - more prep for cuda refactor.

Changes: https://git.openjdk.org/babylon/pull/372/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=372&range=00
  Stats: 771 lines in 12 files changed: 382 ins; 377 del; 12 mod
  Patch: https://git.openjdk.org/babylon/pull/372.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/372/head:pull/372

PR: https://git.openjdk.org/babylon/pull/372