The placeholder executable is replaced by a shell script that invokes
pkg/analyzer_fe_comparison (in a similar way to how
sdk/bin/dartanalyzer invokes pkg/analyzer_cli). This required some
rewriting of pkg/analyzer_fe_comparison to support analysis of a
single test case (as opposed to analysis of a package, which is what
it did before).
It's now possible to run the comparison tool over the test suite in
language_2. There are many failures, which I'll begin addressing in
follow-up CLs.
Change-Id: I52d8f3b53064e8e29028571d416f2573c6cba35d
Reviewed-on: https://dart-review.googlesource.com/74820
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>