tree 933886a3cfc92ef43202309b4401a87ade3baf75
parent 643b8b55e2d03917eae12ddbc9b9e907322d9e1a
author Ian Zerny <zerny@google.com> 1566200357 +0200
committer Ian Zerny <zerny@google.com> 1566202556 +0000

Introduce a sentinel value indicating that kept-graph edges are reported.

Reporting keep reasons now returns a witness for the report which can be
used to satisfy the reporting requirements in the enqueuer.

Bug: 120959039
Change-Id: I9af20fb6944970be150684030565a21acc399e94