Use NodeList where possible.

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

Index: compiler/java/com/google/dart/compiler/ast/DartSwitchMember.java
diff --git a/compiler/java/com/google/dart/compiler/ast/DartSwitchMember.java b/compiler/java/com/google/dart/compiler/ast/DartSwitchMember.java
index e3cf4b8c9d7cc07ad9e7e7dbf0e41a4659ef5c7d..690b6140234fefbf7c47263a37153af19f61fc0d 100644
--- a/compiler/java/com/google/dart/compiler/ast/DartSwitchMember.java
+++ b/compiler/java/com/google/dart/compiler/ast/DartSwitchMember.java
@@ -11,16 +11,12 @@ import java.util.List;
  */
 public abstract class DartSwitchMember extends DartNode {
 
-  private final List<DartStatement> statements;
+  private final NodeList<DartStatement> statements = NodeList.create(this);
   private final DartLabel label;
 
   public DartSwitchMember(DartLabel label, List<DartStatement> statements) {
     this.label = becomeParentOf(label);
-    this.statements = becomeParentOf(statements);
-  }
-
-  public void addStatement(DartStatement statement) {
-    statements.add(statement);
+    this.statements.addAll(statements);
   }
 
   public List<DartStatement> getStatements() {
@@ -36,6 +32,6 @@ public abstract class DartSwitchMember extends DartNode {
     if (label != null) {
       label.accept(visitor);
     }
-    visitor.visit(statements);
+    statements.accept(visitor);
   }
 }