[code-reflection] RFR: Assertion Interpreter Implementation

[Ian Graves]

The interpreter side of the assertion work.

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Commit messages:
 - Initial interpreter work and test
 - initial

Changes: https://git.openjdk.org/babylon/pull/36/files
 Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=36&range=00
  Stats: 162 lines in 2 files changed: 162 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/babylon/pull/36.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/36/head:pull/36

PR: https://git.openjdk.org/babylon/pull/36