Function calls were not tested and the definitions of function parameters were output separately, since the transpiler used to output function declarations before implementations.

flutter/flutter#89083

Pre-launch Checklist

• I read theContributor Guide and followed the process outlined there for submitting PRs.
• I read theTree Hygiene wiki page, which explains my responsibilities.
• I read and followed theFlutter Style Guide and theC++, Objective-C, Java style guides.
• I listed at least one issue that this PR fixes in the description above.
• I added new tests to check the change I am making or feature I am adding, or Hixie said the PR is test-exempt. Seetesting the engine for instructions on
  writing and running engine tests.
• I updated/added relevant documentation (doc comments with///).
• I signed theCLA.
• All existing and new tests are passing.

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