Fix source information positions for deserialized patched elements.

pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart

 // Copyright (c) 2016, 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.serialization.resolved_ast;
 
 import '../common.dart';
 import '../common/resolution.dart';
 import '../constants/expressions.dart';
 import '../dart_types.dart';
@@ skipping 321 matching lines @@
   /// Deserialize a [ResolvedAst] that is defined in terms of an AST together
   /// with [TreeElements].
   static ResolvedAst deserializeParsed(
       Element element,
       ObjectDecoder objectDecoder,
       ParsingContext parsing,
       Token getBeginToken(Uri uri, int charOffset),
       DeserializerPlugin nativeDataDeserializer) {
     CompilationUnitElement compilationUnit = element.compilationUnit;
     DiagnosticReporter reporter = parsing.reporter;
+    Uri uri = objectDecoder.getUri(Key.URI);
 
     /// Returns the first [Token] for parsing the [Node] for [element].
     Token readBeginToken() {
-      Uri uri = objectDecoder.getUri(Key.URI);
       int charOffset = objectDecoder.getInt(Key.OFFSET);
       Token beginToken = getBeginToken(uri, charOffset);
       if (beginToken == null) {
         reporter.internalError(
             element, "No token found for $element in $uri @ $charOffset");
       }
       return beginToken;
     }
 
     /// Create the [Node] for the element by parsing the source code.
@@ skipping 262 matching lines @@
         ObjectDecoder nativeDataDecoder =
             objectDecoder.getObject(Key.NATIVE, isOptional: true);
         if (nativeDataDecoder != null) {
           var nativeData = nativeDataDeserializer.onData(nativeDataDecoder);
           if (nativeData != null) {
             elements.registerNativeData(node, nativeData);
           }
         }
       }
     }
-    return new ParsedResolvedAst(element, root, body, elements);
+    return new ParsedResolvedAst(element, root, body, elements, uri);
   }
 }