[code-reflection] RFR: Update buffer tagging with arrayview support

[Ruby Chen]

Add buffer tagging for array views, and also use `elements()` instead of `traverse()`.

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Commit messages:
 - Update buffer tagging with arrayview support

Changes: https://git.openjdk.org/babylon/pull/610/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=610&range=00
  Stats: 39 lines in 2 files changed: 17 ins; 3 del; 19 mod
  Patch: https://git.openjdk.org/babylon/pull/610.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/610/head:pull/610

PR: https://git.openjdk.org/babylon/pull/610