Prioritize analysis operations for contexts with priority files.

pkg/analysis_server/lib/src/analysis_server.dart

Index: pkg/analysis_server/lib/src/analysis_server.dart
diff --git a/pkg/analysis_server/lib/src/analysis_server.dart b/pkg/analysis_server/lib/src/analysis_server.dart
index 644435888d35b6736c9f2f0cbb75beb5245b4366..9448ea7d143211606b3bfb6c0af856b75aace656 100644
--- a/pkg/analysis_server/lib/src/analysis_server.dart
+++ b/pkg/analysis_server/lib/src/analysis_server.dart
@@ -647,8 +647,7 @@ class AnalysisServer {
    */
   void schedulePerformAnalysisOperation(AnalysisContext context) {
     _onAnalysisStartedController.add(context);
-    bool isPriority = _isPriorityContext(context);
-    scheduleOperation(new PerformAnalysisOperation(context, isPriority, false));
+    scheduleOperation(new PerformAnalysisOperation(context, false));
   }
 
   /**
@@ -831,6 +830,7 @@ class AnalysisServer {
       }
       context.analysisPriorityOrder = sourceList;
     });
+    operationQueue.reschedule();
     Source firstSource = files.length > 0 ? getSource(files[0]) : null;
     _onPriorityChangeController.add(new PriorityChangeEvent(firstSource));
   }
@@ -929,14 +929,6 @@ class AnalysisServer {
   }
 
   /**
-   * Returns `true` if the given [AnalysisContext] is a priority one.
-   */
-  bool _isPriorityContext(AnalysisContext context) {
-    // TODO(scheglov) implement support for priority sources/contexts
-    return false;
-  }
-
-  /**
    * Schedules [performOperation] exection.
    */
   void _schedulePerformOperation() {