tree b575c8f6e492f8dc50ca35975873d6711953a947
parent 80c947f98cc290b4d95a46c829d3efbbb9560746
author Kevin Moore <kevmoo@google.com> 1440724441 -0700
committer Kevin Moore <kevmoo@google.com> 1440724441 -0700

Eliminate dart2js warning about overriding `==`, but not `hashCode`.

Closes dart-lang/source_span#5

R=nweiz@google.com

Review URL: https://codereview.chromium.org//1315423002 .