[code-reflection] Integrated: More phase refactoring, created common op pattern matchers

[Gary Frost]

More cleanup of dialect transformation phases. 

Trying to seal the whole phase class hierarchy

Established some common patterns

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Commit messages:
 - More phase refactoring, created common op pattern matchers

Changes: https://git.openjdk.org/babylon/pull/789/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=789&range=00
  Stats: 931 lines in 30 files changed: 504 ins; 335 del; 92 mod
  Patch: https://git.openjdk.org/babylon/pull/789.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/789/head:pull/789

PR: https://git.openjdk.org/babylon/pull/789