[code-reflection] RFR: 8337162: Support primitives in patterns

[Mourad Abbay]

Support primitives in patterns

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Commit messages:
 - Update the lowering of type pattern to support primitives in patterns

Changes: https://git.openjdk.org/babylon/pull/246/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=246&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8337162
  Stats: 78 lines in 2 files changed: 75 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/babylon/pull/246.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/246/head:pull/246

PR: https://git.openjdk.org/babylon/pull/246