7695118aa2
This adds support for detecting macro classes from .dill TEST=pkg/front_end/testcases/macros/macro_class.dart Change-Id: I8d45cafff1b4edaff7e090384be1a1cf9c8087ae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/224948 Reviewed-by: Chloe Stefantsova <cstefantsova@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com>
Conversion to a textual format.
The text format is currently very ad-hoc and there is no conversion back, but it's a pleasant way to view the IR.