Increment AnalysisDriver.DATA_VERSION

This should have been done in
https://dart-review.googlesource.com/c/sdk/+/267340

Change-Id: Ie1e6ea56bbfdd807c2e7097c6c06b898693b2850
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/308401
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
diff --git a/pkg/analyzer/lib/src/dart/analysis/driver.dart b/pkg/analyzer/lib/src/dart/analysis/driver.dart
index bb9a3c5..54a170c 100644
--- a/pkg/analyzer/lib/src/dart/analysis/driver.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/driver.dart
@@ -87,7 +87,7 @@
 /// TODO(scheglov) Clean up the list of implicitly analyzed files.
 class AnalysisDriver implements AnalysisDriverGeneric {
   /// The version of data format, should be incremented on every format change.
-  static const int DATA_VERSION = 276;
+  static const int DATA_VERSION = 277;
 
   /// The number of exception contexts allowed to write. Once this field is
   /// zero, we stop writing any new exception contexts in this process.