Derive source information from ResolvedAst.

pkg/compiler/lib/src/io/source_information.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 dart2js.source_information;
 
 import '../common.dart';
-import '../elements/elements.dart' show AstElement, LocalElement;
+import '../elements/elements.dart' show AstElement, LocalElement, ResolvedAst;
 import '../js/js.dart' show JavaScriptNodeSourceInformation;
 import '../tree/tree.dart' show Node;
 import 'source_file.dart';
 
 /// Interface for passing source information, for instance for use in source
 /// maps, through the backend.
 abstract class SourceInformation extends JavaScriptNodeSourceInformation {
   const SourceInformation();
 
   SourceSpan get sourceSpan;
@@ skipping 30 matching lines @@
   void onComplete() {}
 }
 
 /// Interface for generating [SourceInformation].
 class SourceInformationBuilder {
   const SourceInformationBuilder();
 
   /// Create a [SourceInformationBuilder] for [element].
   SourceInformationBuilder forContext(AstElement element) => this;
 
-  /// Generate [SourceInformation] the declaration of [element].
-  SourceInformation buildDeclaration(AstElement element) => null;
+  /// Generate [SourceInformation] the declaration of the element in
+  /// [resolvedAst].
+  SourceInformation buildDeclaration(ResolvedAst resolvedAst) => null;
 
   /// Generate [SourceInformation] for the generic [node].
   @deprecated
   SourceInformation buildGeneric(Node node) => null;
 
   /// Generate [SourceInformation] for an instantiation of a class using [node]
   /// for the source position.
   SourceInformation buildCreate(Node node) => null;
 
   /// Generate [SourceInformation] for the return [node].
@@ skipping 165 matching lines @@
     return '${computeElementNameForSourceMaps(local.executableContext)}.$name';
   } else if (element.enclosingClass != null) {
     if (element.enclosingClass.isClosure) {
       return computeElementNameForSourceMaps(element.enclosingClass);
     }
     return '${element.enclosingClass.name}.${element.name}';
   } else {
     return element.name;
   }
 }