This CL adds support to the test runner for the test outcome
expectation syntax that uses `// [...]` to indicate which diagnostic
we should expect with the given tool. Currently, `...` is `analyzer`
when testing the analyzer and `cfe` when testing the common front end.
After landing this CL, it also supports `// [spec_parser]`.
This change would allow us to migrate several tests from the multi-test
format (like `code; //# 01: compile-time error`) to the new format, in
particular tests with intentional syntax errors.
Change-Id: I5dd2560a873eb7433d3e07aa8f393e83c51b28e7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/501161
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
Erik Ernst
4d964c4804