The API for pkg/front_end is still in flux so we want to avoid having
any packages depend directly on it (other than analyzer and
back-ends).
This CL re-exports some of the critical pieces of front_end needed by
analyzer clients so that those clients can access them via analyzer,
without having to directly depend on front_end. It also updates
pkg/analyzer_plugin to make use of those re-exports.
R=scheglov@google.com
Review-Url: https://codereview.chromium.org/2993123002 .
Brian Wilkerson