Fix SynthesizedFileUnit serialization and TBDGen issues.#30912

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dan-zheng merged 2 commits intoswiftlang:masterfrom

dan-zheng:fix-synthesized-file-unit

Apr 9, 2020

Commits on Apr 9, 2020

Fix `SynthesizedFileUnit` serialization and TBDGen issues.
dan-zheng
committed
[AutoDiff] Add `SynthesizedFileUnit` TBDGen/serialization tests.
dan-zheng
committed