Disable using summary2 for analysis (#2018)

diff --git a/lib/src/model.dart b/lib/src/model.dart
index 39ac7ae..2218fa7 100644
--- a/lib/src/model.dart
+++ b/lib/src/model.dart
@@ -6952,6 +6952,8 @@
       // TODO(jcollins-g): Make use of currently not existing API for managing
       //                   many AnalysisDrivers
       // TODO(jcollins-g): make use of DartProject isApi()
+      // TODO(keertip): Use summary 2 after fixing #2017
+      AnalysisDriver.useSummary2 = false;
       _driver = AnalysisDriver(
           scheduler,
           log,