Elements. Remove augmentationSubstitution.

Change-Id: Ic90906b72b6f8344a4142b39d3b1975e58348f79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/416324
Commit-Queue: Konstantin Shcheglov <[email protected]>
Reviewed-by: Phil Quitslund <[email protected]>

Author: scheglov

pkg/analyzer/lib/src/dart/analysis/driver.dart

@@ -100,7 +100,7 @@ import 'package:meta/meta.dart';
 // TODO(scheglov): Clean up the list of implicitly analyzed files.
 class AnalysisDriver {
   /// The version of data format, should be incremented on every format change.
-  static const int DATA_VERSION = 446;
+  static const int DATA_VERSION = 447;
 
   /// The number of exception contexts allowed to write. Once this field is
   /// zero, we stop writing any new exception contexts in this process.