Refactor summary resynthesis tests in preparation for using the one-phase summary API.

This CL refactors the summary resynthesis tests similar to how
05ab41c99b0972e75086ecbc3f617ba9a36da372 refactored the summary
generation tests.  It introduces the following classes:

- The interface `ResynthesizeTestStrategy`, defining the methods that
  can be invoked by tests of summary resynthesis.

- An implementation of that interface:
  `ResynthesizeTestStrategyTwoPhase`.  This drives the summary
  mechanism using the old two-phase summary API.

- Mixin classes `ExprBuilderTestCases` and `ResynthesizeTestCases`
  containing the test cases themselves.

- Mixin classes `ExprBuilderTestHelpers` and `ResynthesizeTestHelpers`
  containing helper methods used by the test cases.

There should be no functional change introduced by this CL, only code
motion.

Change-Id: Ifb84d4d2d8fa17bbc32b833b1f56af7e1217b5ae
Reviewed-on: https://dart-review.googlesource.com/75124
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
4 files changed
tree: aced5b8f26d8347267021822cfc45bc769246e9b
  1. .clang-format
  2. .gitattributes
  3. .gitconfig
  4. .github/
  5. .gitignore
  6. .gn
  7. .mailmap
  8. .packages
  9. AUTHORS
  10. BUILD.gn
  11. CHANGELOG.md
  12. CONTRIBUTING.md
  13. DEPS
  14. LICENSE
  15. PATENTS
  16. PRESUBMIT.py
  17. README.dart-sdk
  18. README.md
  19. WATCHLISTS
  20. build/
  21. client/
  22. codereview.settings
  23. dartdoc_options.yaml
  24. docs/
  25. pkg/
  26. runtime/
  27. samples-dev/
  28. samples/
  29. sdk/
  30. tests/
  31. third_party/
  32. tools/
  33. utils/
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