[code-reflection] RFR: Support conversions of primitives in testing context [v10]

[Mourad Abbay]

> Support conversions of primitives in testing context.

Mourad Abbay has updated the pull request incrementally with four additional commits since the last revision:

 - Avoid casting when identity reference conversion
 - clarify comments
 - Handle boxing conversions
 - Apply suggestions

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Changes:
  - all: https://git.openjdk.org/babylon/pull/265/files
  - new: https://git.openjdk.org/babylon/pull/265/files/77abde07..5d3c1383

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=265&range=09
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=265&range=08-09

  Stats: 26 lines in 1 file changed: 17 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/babylon/pull/265.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/265/head:pull/265

PR: https://git.openjdk.org/babylon/pull/265