Increment DATA_VERSION, probably fix integration tests.

Change-Id: I99b1de66fae885b6a2f0da995acc2721dc04e2a6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/349702
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>

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

@@ -94,7 +94,7 @@ 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 = 333;
+ static const int DATA_VERSION = 335;
 
  /// The number of exception contexts allowed to write. Once this field is
  /// zero, we stop writing any new exception contexts in this process.