Added TODO.

lib/compiler/implementation/ssa/builder.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.
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 2500 matching lines @@
     if (code is StringNode) {
       StringNode codeString = code;
       if (!codeString.isInterpolation) {
         // codeString may not be an interpolation, but may be a juxtaposition.
         push(new HForeign(codeString.dartString,
                           typeString.dartString,
                           inputs));
         return;
       }
     }
-    compiler.cancel('JS code must be a string literal', node: literal);
+    compiler.cancel('JS code must be a string literal', node: code);
   }
 
   void handleForeignUnintercepted(Send node) {
     Link<Node> link = node.arguments;
     if (!link.tail.isEmpty()) {
       compiler.cancel(
           'More than one expression in UNINTERCEPTED()', node: node);
     }
     Expression expression = link.head;
     disableMethodInterception();
@@ skipping 1846 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }