[code-reflection] RFR: Test Switch Expression lowering when case is constant [v4]

[Mourad Abbay]

> Test Switch Expression lowering when case is constant.

Mourad Abbay has updated the pull request incrementally with one additional commit since the last revision:

  Add tests that focus on conversion of case constant

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Changes:
  - all: https://git.openjdk.org/babylon/pull/169/files
  - new: https://git.openjdk.org/babylon/pull/169/files/f4c40ea9..1b69c9af

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=169&range=03
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=169&range=02-03

  Stats: 161 lines in 4 files changed: 161 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/babylon/pull/169.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/169/head:pull/169

PR: https://git.openjdk.org/babylon/pull/169