Add '--finer-grained-invalidation' option to Analysis Server.

pkg/analysis_server/lib/src/server/driver.dart

Index: pkg/analysis_server/lib/src/server/driver.dart
diff --git a/pkg/analysis_server/lib/src/server/driver.dart b/pkg/analysis_server/lib/src/server/driver.dart
index a70ecb733cc00c152907fc2bf84bb1bdb9f0317e..f78fc6169d4be6372d6cfd7955a0646d9802ceb7 100644
--- a/pkg/analysis_server/lib/src/server/driver.dart
+++ b/pkg/analysis_server/lib/src/server/driver.dart
@@ -244,6 +244,11 @@ class Driver implements ServerStarter {
       "incremental-resolution-validation";
 
   /**
+   * The name of the option used to enable fined grained invalidation.
+   */
+  static const String FINER_GRAINED_INVALIDATION = 'finer-grained-invalidation';
+
+  /**
    * The name of the option used to cause instrumentation to also be written to
    * a local file.
    */
@@ -374,6 +379,8 @@ class Driver implements ServerStarter {
         results[ENABLE_INCREMENTAL_RESOLUTION_API];
     analysisServerOptions.enableIncrementalResolutionValidation =
         results[INCREMENTAL_RESOLUTION_VALIDATION];
+    analysisServerOptions.finerGrainedInvalidation =
+        results[FINER_GRAINED_INVALIDATION];
     analysisServerOptions.noErrorNotification = results[NO_ERROR_NOTIFICATION];
     analysisServerOptions.noIndex = results[NO_INDEX];
     analysisServerOptions.useAnalysisHighlight2 =
@@ -524,6 +531,10 @@ class Driver implements ServerStarter {
         help: "enable validation of incremental resolution results (slow)",
         defaultsTo: false,
         negatable: false);
+    parser.addFlag(FINER_GRAINED_INVALIDATION,
+        help: "enable finer grained invalidation",
+        defaultsTo: false,
+        negatable: false);
     parser.addOption(INSTRUMENTATION_LOG_FILE,
         help:
             "the path of the file to which instrumentation data will be written");