Convert into/from => function syntax

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

Index: compiler/java/com/google/dart/compiler/ast/DartReturnBlock.java
diff --git a/compiler/java/com/google/dart/compiler/ast/DartReturnBlock.java b/compiler/java/com/google/dart/compiler/ast/DartReturnBlock.java
index a47bb20e0b5d1f3ba30e42e7438fb2bf0e86ccc4..2ab69ce540bf15a420c36b5177ef3b28ad1ad2b8 100644
--- a/compiler/java/com/google/dart/compiler/ast/DartReturnBlock.java
+++ b/compiler/java/com/google/dart/compiler/ast/DartReturnBlock.java
@@ -9,14 +9,21 @@ import com.google.common.collect.Lists;
  * Represents a Dart block containing a single return statement.
  */
 public class DartReturnBlock extends DartBlock {
-  public DartReturnBlock(DartExpression returnVal) {
-    super(Lists.<DartStatement> newArrayList(new DartReturnStatement(returnVal)));
+  private final DartExpression value;
+
+  public DartReturnBlock(DartExpression value) {
+    super(Lists.<DartStatement> newArrayList(new DartReturnStatement(value)));
+    this.value = value;
     // Set the source information for the synthesized node.
-    getStatements().get(0).setSourceInfo(returnVal.getSourceInfo());
+    getStatements().get(0).setSourceInfo(value.getSourceInfo());
   }
 
   @Override
   public <R> R accept(ASTVisitor<R> visitor) {
     return visitor.visitReturnBlock(this);
   }
+
+  public DartExpression getValue() {
+    return value;
+  }
 }