Remove Compiler.reportFatalError.

dart/pkg/compiler/lib/src/js/nodes.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.
 
 part of js;
 
 abstract class NodeVisitor<T> {
   T visitProgram(Program node);
 
   T visitBlock(Block node);
@@ skipping 723 matching lines @@
         return BIT_XOR;
       case "|":
         return BIT_OR;
       case "&&":
         return LOGICAL_AND;
       case "||":
         return LOGICAL_OR;
       case ',':
         return EXPRESSION;
       default:
-        throw new leg.CompilerCancelledException(
-            "Internal Error: Unhandled binary operator: $op");
+        throw "Internal Error: Unhandled binary operator: $op";
     }
   }
 }
 
 class Prefix extends Expression {
   final String op;
   final Expression argument;
 
   Prefix(this.op, this.argument);
 
@@ skipping 344 matching lines @@
 class Comment extends Statement {
   final String comment;
 
   Comment(this.comment);
 
   accept(NodeVisitor visitor) => visitor.visitComment(this);
   Comment _clone() => new Comment(comment);
 
   void visitChildren(NodeVisitor visitor) {}
 }