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

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

Index: compiler/java/com/google/dart/compiler/ast/ASTVisitor.java
diff --git a/compiler/java/com/google/dart/compiler/ast/ASTVisitor.java b/compiler/java/com/google/dart/compiler/ast/ASTVisitor.java
index 774c2e4c084f0cf096a31ed15e72e0c5752bdb29..eac2a2e3e8c0328e5bf2cb7389bb6baad966cbc1 100644
--- a/compiler/java/com/google/dart/compiler/ast/ASTVisitor.java
+++ b/compiler/java/com/google/dart/compiler/ast/ASTVisitor.java
@@ -85,10 +85,6 @@ public class ASTVisitor<R> {
     return visitTypedLiteral(node);
   }
 
-  public R visitAssertion(DartAssertion node) {
-    return visitStatement(node);
-  }
-
   public R visitBinaryExpression(DartBinaryExpression node) {
     return visitExpression(node);
   }
@@ -96,6 +92,10 @@ public class ASTVisitor<R> {
   public R visitBlock(DartBlock node) {
     return visitStatement(node);
   }
+  
+  public R visitReturnBlock(DartReturnBlock node) {
+    return visitBlock(node);
+  }
 
   public R visitBooleanLiteral(DartBooleanLiteral node) {
     return visitLiteral(node);