[code-reflection] RFR: Experiment with replacing textual representation in classfile with method that builds the model [v7]

[Mourad Abbay]

> Experiment with replacing textual representation in classfile with method that builds the model.
> Note: This PR is based on changes from #272.

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

 - Modify the script to run on all compiler tests classes one by one
 - Box value before invoking Map.put

-------------

Changes:
  - all: https://git.openjdk.org/babylon/pull/274/files
  - new: https://git.openjdk.org/babylon/pull/274/files/8e9e7963..80ee7f84

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=274&range=06
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=274&range=05-06

  Stats: 297 lines in 4 files changed: 158 ins; 139 del; 0 mod
  Patch: https://git.openjdk.org/babylon/pull/274.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/274/head:pull/274

PR: https://git.openjdk.org/babylon/pull/274