Memory leak fix. Use correct analysis context for annotation constants.

pkg/analyzer/lib/src/generated/constant.dart

 // Copyright (c) 2014, 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 engine.constant;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/utilities_general.dart';
@@ skipping 1216 matching lines @@
   /**
    * True if instance variables marked as "final" should be treated as "const".
    */
   bool treatFinalInstanceVarAsConst = false;
 
   ConstantFinder(this.context, this.source, this.librarySource);
 
   @override
   Object visitAnnotation(Annotation node) {
     super.visitAnnotation(node);
+    AnalysisContext owningContext = _getOwningContext();
     constantsToCompute.add(new ConstantEvaluationTarget_Annotation(
-        context, source, librarySource, node));
+        owningContext, source, librarySource, node));
     return null;
   }
 
   @override
   Object visitClassDeclaration(ClassDeclaration node) {
     bool prevTreatFinalInstanceVarAsConst = treatFinalInstanceVarAsConst;
     if (node.element.constructors.any((ConstructorElement e) => e.isConst)) {
       // Instance vars marked "final" need to be included in the dependency
       // graph, since constant constructors implicitly use the values in their
       // initializers.
@@ skipping 29 matching lines @@
             treatFinalInstanceVarAsConst &&
                 element is FieldElement &&
                 node.isFinal &&
                 !element.isStatic)) {
       if (node.element != null) {
         constantsToCompute.add(node.element);
       }
     }
     return null;
   }
+
+  AnalysisContext _getOwningContext() {
+    if (context is InternalAnalysisContext) {
+      InternalAnalysisContext internalContext = context;
+      return internalContext.getContextFor(librarySource);
+    }
+    return context;
+  }
 }
 
 /**
  * An object used to compute the values of constant variables and constant
  * constructor invocations in one or more compilation units. The expected usage
  * pattern is for the compilation units to be added to this computer using the
  * method [add] and then for the method [computeValues] to be invoked exactly
  * once. Any use of an instance after invoking the method [computeValues] will
  * result in unpredictable behavior.
  */
@@ skipping 4252 matching lines @@
       return BoolState.from(_element == rightElement);
     } else if (rightOperand is DynamicState) {
       return BoolState.UNKNOWN_VALUE;
     }
     return BoolState.FALSE_STATE;
   }
 
   @override
   String toString() => _element == null ? "-unknown-" : _element.name;
 }