Issue 3268. Support for replacing 'assert' statement with 'assert' function

compiler/java/com/google/dart/compiler/ast/DartPlainVisitor.java

Index: compiler/java/com/google/dart/compiler/ast/DartPlainVisitor.java
diff --git a/compiler/java/com/google/dart/compiler/ast/DartPlainVisitor.java b/compiler/java/com/google/dart/compiler/ast/DartPlainVisitor.java
index 9ba1bb408189f8aab122ab325ab72ee8c07c7e60..dddbbe2375f1aa2f347446bbc94bc1bc11a35d90 100644
--- a/compiler/java/com/google/dart/compiler/ast/DartPlainVisitor.java
+++ b/compiler/java/com/google/dart/compiler/ast/DartPlainVisitor.java
@@ -1,4 +1,4 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
@@ -14,8 +14,6 @@ public interface DartPlainVisitor<R> {
 
   R visitArrayLiteral(DartArrayLiteral node);
 
-  R visitAssertion(DartAssertion node);
-
   R visitBinaryExpression(DartBinaryExpression node);
 
   R visitBlock(DartBlock node);