tree 218542a6eceb4cd6b5964a9f1eb92261e1fdfe62
parent 2e2f9e8c6989dec22e4199a773a1e03954f82365
author Richard Uhler <ruhler@google.com> 1555510173 +0100
committer Richard Uhler <ruhler@google.com> 1555575658 +0000

ahat: getImmediateDominator should not return the SuperRoot.

We should not be exposing the SuperRoot instance anywhere through the
public API, because the SuperRoot is not part of the public API. Change
getImmediateDominator to return null for "rooted" instances instead of
the SuperRoot instance to better match the documented behavior.

Test: atest ahat-tests, with new test added.
Change-Id: Id93a09bd714d7b00c6c50233f01d1af7b4258fae