Skip local variable dependepcies.

pkg/analyzer/lib/src/task/dart.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.src.task.dart;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 2018 matching lines @@
     // Record outputs.
     //
     outputs[PROPAGABLE_VARIABLE_DEPENDENCIES] = gatherer.results.toList();
   }
 
   /**
    * Return `true` if the given [variable] is a variable whose type can be
    * propagated.
    */
   bool _isPropagable(VariableElement variable) =>
-      (variable.isConst || variable.isFinal) &&
+      variable is PropertyInducingElement &&
+          (variable.isConst || variable.isFinal) &&
           variable.hasImplicitType &&
           variable.initializer != null;
 
   /**
    * Return a map from the names of the inputs of this kind of task to the task
    * input descriptors describing those inputs for a task with the
    * given [target].
    */
   static Map<String, TaskInput> buildInputs(AnalysisTarget target) {
     if (target is VariableElement) {
@@ skipping 3036 matching lines @@
 
   @override
   bool moveNext() {
     if (_newSources.isEmpty) {
       return false;
     }
     currentTarget = _newSources.removeLast();
     return true;
   }
 }