[code-reflection] Integrated: Some more phase cleanup also added a few Query experiments

[Gary Frost]

Still walking through some HAT phase/dialect/ops refactorings. 

Added some more useful Query types.

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Commit messages:
 - Some more phase cleanup also added a few Query experiments

Changes: https://git.openjdk.org/babylon/pull/831/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=831&range=00
  Stats: 954 lines in 16 files changed: 465 ins; 415 del; 74 mod
  Patch: https://git.openjdk.org/babylon/pull/831.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/831/head:pull/831

PR: https://git.openjdk.org/babylon/pull/831