[code-reflection] RFR: Align code with JVMLS slides

[Gary Frost]

Life demo now aligns with slides/docs

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Commit messages:
 - align code with JVMLS slides

Changes: https://git.openjdk.org/babylon/pull/207/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=207&range=00
  Stats: 36 lines in 2 files changed: 18 ins; 7 del; 11 mod
  Patch: https://git.openjdk.org/babylon/pull/207.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/207/head:pull/207

PR: https://git.openjdk.org/babylon/pull/207