Generated source mapping through CPS.

pkg/compiler/lib/src/io/position_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.
 
 /// Source information system mapping that attempts a semantic mapping between
 /// offsets of JavaScript code points to offsets of Dart code points.
 
 library dart2js.source_information.position;
 
 import '../dart2jslib.dart' show
@@ skipping 131 matching lines @@
   /// Builds a source information object pointing the start position of [node].
   SourceInformation buildBegin(Node node) {
     return new PositionSourceInformation(new OffsetSourceLocation(
         sourceFile, node.getBeginToken().charOffset, name));
   }
 
   @override
   SourceInformation buildGeneric(Node node) => buildBegin(node);
 
   @override
+  SourceInformation buildCreate(Node node) => buildBegin(node);
+
+  @override
   SourceInformation buildReturn(Node node) => buildBegin(node);
 
   @override
   SourceInformation buildImplicitReturn(AstElement element) {
     if (element.isSynthesized) {
       return new PositionSourceInformation(
           new OffsetSourceLocation(
               sourceFile, element.position.charOffset, name));
     } else {
       return new PositionSourceInformation(
@@ skipping 268 matching lines @@
 
   @override
   void onPositions(js.Node node,
                    int startPosition,
                    int endPosition,
                    int closingPosition) {
     codePositions.registerPositions(
         node, startPosition, endPosition, closingPosition);
   }
 }