[code-reflection] RFR: Fix arrayview tests

[Ruby Chen]

Fix arrayview tests and also enabled vector arrayview tests.

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Commit messages:
 - Fix arrayview tests

Changes: https://git.openjdk.org/babylon/pull/676/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=676&range=00
  Stats: 782 lines in 4 files changed: 42 ins; 18 del; 722 mod
  Patch: https://git.openjdk.org/babylon/pull/676.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/676/head:pull/676

PR: https://git.openjdk.org/babylon/pull/676