tree 51ec20b499fbc265dd2c7eee3266935818543c26
parent 779dc6eb85c1f2249803d017ffa785c85681ad1b
author Jenny Messerly <jmesserly@google.com> 1525910772 +0000
committer Jenny Messerly <jmesserly@google.com> 1525910772 +0000

fix #31393, port utf8 decoder optimizations from dart2js to ddc

The dart2js changes were made in:
https://github.com/dart-lang/sdk/commit/3836c70a8150bc33a695788deee346b940b40769

Change-Id: I5476c10e3734fa8ab0c027dd258b2fa5ef43287b
Reviewed-on: https://dart-review.googlesource.com/54529
Reviewed-by: Vijay Menon <vsm@google.com>