Since r44861, ElementBuilder is responsible for creating the
ConstantInstanceCreationHandle objects associated with
InstanceCreationExpressions. Since InstanceCreationExpressions may
appear inside annotations, we must make sure the ElementBuilder visits
all annotations. Previous to this change, it didn't visit function
annotations.
BUG=dartbug.com/23354
R=scheglov@google.com
Review URL: https://codereview.chromium.org//1125613003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45489 260f80e4-7a28-3924-810f-c04153c831b5
paulberry@google.com