[code-reflection] RFR: Add support for local classes

[Maurizio Cimadamore]

Fix logic to generate correct constructor type

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Commit messages:
 - Add test
 - Fixed issue with missing var loads
 - Initial push
 - Strengthen JavaType factory code
 - Fix whitespaces
 - Simplify test
 - Initial push

Changes: https://git.openjdk.org/babylon/pull/111/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=111&range=00
  Stats: 652 lines in 14 files changed: 537 ins; 29 del; 86 mod
  Patch: https://git.openjdk.org/babylon/pull/111.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/111/head:pull/111

PR: https://git.openjdk.org/babylon/pull/111