tree e5d2fa8d75f2adda0dff41a28f7391b7868b0075
parent 5a3d81a1235a8f515064e3514f98f5aa7c3e5721
author Nate Bosch <nbosch@google.com> 1571961635 -0700
committer GitHub <noreply@github.com> 1571961635 -0700
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Switch from IOSink to StringSink (#1105)

Towards #1100

The ExpandedReporter needs to work on the web platform. It worked before
because it only used `print` which works everywhere.

- Change the argument to `StringSink` which can be supported on every
  platform.
- Remove the `dart:io` import from the expanded reporter.
- Make the `sink` argument non-optional for the expanded reporter.
- Add a `PrintSink` implementation that buffers writes until the content
  ends with a newline and then calls `print`.