Handle a single body argument correctly.
Handle a single body argument correctly.

Fixes:

sendPort.send({'type': 'error', 'error': 'oops'});

570 PASSED, 22 FAILED, 0 ERRORS

alechenninger/dart_style,mark-henry/dart_style,christofferqa/dart_style,christofferqa/dart_style,mark-henry/dart_style,alechenninger/dart_style,dart-lang/dart_style