80101ac407
This was de-duped in 02573b3caa, however
there's a problem: In order to share type inference and error
detection logic between Fasta's AstBuilder and BodyBuilder classes,
Fasta's use of the accessors needs to be rewritten to make use of the
shadow hierarchy (see
pkg/front_end/lib/src/fasta/builder/shadow_ast.dart), which kernel
shouldn't have to depend on.
R=ahe@google.com
Review-Url: https://codereview.chromium.org/2794013003 .