Allow closures inside lazy initializers.

lib/compiler/implementation/elements/elements.dart

 // Copyright (c) 2012, 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('elements');
 
 #import('dart:uri');
 
 #import('../tree/tree.dart');
 #import('../scanner/scannerlib.dart');
@@ skipping 644 matching lines @@
   // cases, for example, for function typed parameters.
   Token position() => findMyName(variables.position());
 
   VariableElement cloneTo(Element enclosing, DiagnosticListener listener) {
     VariableListElement clonedVariables =
         variables.cloneTo(enclosing, listener);
     VariableElement result = new VariableElement(
         name, clonedVariables, kind, enclosing, cachedNode);
     return result;
   }
+
+  Scope buildScope() => variables.buildScope();
 }
 
 /**
  * Parameters in constructors that directly initialize fields. For example:
  * [:A(this.field):].
  */
 class FieldParameterElement extends VariableElement {
   VariableElement fieldElement;
 
   FieldParameterElement(SourceString name,
@@ skipping 1013 matching lines @@
 
   MetadataAnnotation ensureResolved(Compiler compiler) {
     if (resolutionState == STATE_NOT_STARTED) {
       compiler.resolver.resolveMetadataAnnotation(this);
     }
     return this;
   }
 
   String toString() => 'MetadataAnnotation($value, $resolutionState)';
 }