Chris Bracken 0ab5914e26 Revert "Eliminate support for Dart 1 (#5504)" (flutter/engine#5505)
Broke runtime_unittests, which are still running directly from source.

This reverts commit 6a89437fec6f67c8f6526b22dd50f3e992dd9699.
2018-06-11 18:12:10 -07:00
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