tree b46c0479badd178c6ae18da90f5ff8122bdfdc30
parent 4ddf2b607bafa96ce6285ed2d579b78cb26a12fe
author Jacob MacDonald <jakemac@google.com> 1595385685 -0700
committer GitHub <noreply@github.com> 1595385685 -0700

update for the 2.10 dev sdk (dart-lang/source_span#57)

This is in preparation for the actual 2.10 dev sdk release.