[code-reflection] Integrated: more phase transform refctoring and a fix to hat.java for props

[Gary Frost]

More refactoring of transform phases. 

Also a fix to allow `java @hat/test-suite` ro accept properties. 

ala

java @hat/test-suite ffi-opencl -DHAT=SHOW_COMPILATION_PHASES -DTRACE_CALLSITES=true

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Commit messages:
 - more phase transform refctoring and a fix to hat.java for props

Changes: https://git.openjdk.org/babylon/pull/627/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=627&range=00
  Stats: 60 lines in 4 files changed: 47 ins; 4 del; 9 mod
  Patch: https://git.openjdk.org/babylon/pull/627.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/627/head:pull/627

PR: https://git.openjdk.org/babylon/pull/627