[code-reflection] Integrated: Allow FuncOpWrapper to wrap SSA lowered funcOps

[Gary Frost]

Issue was reported wrapping (FuncOpWrapper) FuncOp after lowering to SSA form. 

Also introduced HatPtrOp which will allow us to track layout information while lowering.

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Commit messages:
 - Allow FuncOpWrapper to wrap SSA lowered funcOps

Changes: https://git.openjdk.org/babylon/pull/130/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=130&range=00
  Stats: 293 lines in 9 files changed: 167 ins; 93 del; 33 mod
  Patch: https://git.openjdk.org/babylon/pull/130.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/130/head:pull/130

PR: https://git.openjdk.org/babylon/pull/130