Update rhino dependency to 1.7R4

pmd-javascript/src/main/java/net/sourceforge/pmd/lang/ecmascript/ast/ASTEmptyStatement.java

@@ -0,0 +1,17 @@
+/**
+ * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
+ */
+package net.sourceforge.pmd.lang.ecmascript.ast;
+
+import org.mozilla.javascript.ast.EmptyStatement;
+
+public class ASTEmptyStatement extends AbstractEcmascriptNode<EmptyStatement> {
+    public ASTEmptyStatement(EmptyStatement emptyStatement) {
+        super(emptyStatement);
+    }
+
+    @Override
+    public Object jjtAccept(EcmascriptParserVisitor visitor, Object data) {
+        return visitor.visit(this, data);
+    }
+}

pmd-javascript/src/main/java/net/sourceforge/pmd/lang/ecmascript/ast/EcmascriptTreeBuilder.java

@@ -27,6 +27,7 @@ import org.mozilla.javascript.ast.ContinueStatement;
 import org.mozilla.javascript.ast.DoLoop;
 import org.mozilla.javascript.ast.ElementGet;
 import org.mozilla.javascript.ast.EmptyExpression;
+import org.mozilla.javascript.ast.EmptyStatement;
 import org.mozilla.javascript.ast.ExpressionStatement;
 import org.mozilla.javascript.ast.ForInLoop;
 import org.mozilla.javascript.ast.ForLoop;
@@ -83,6 +84,7 @@ public final class EcmascriptTreeBuilder implements NodeVisitor {
 	register(DoLoop.class, ASTDoLoop.class);
 	register(ElementGet.class, ASTElementGet.class);
 	register(EmptyExpression.class, ASTEmptyExpression.class);
+	register(EmptyStatement.class, ASTEmptyStatement.class);
 	register(ExpressionStatement.class, ASTExpressionStatement.class);
 	register(ForInLoop.class, ASTForInLoop.class);
 	register(ForLoop.class, ASTForLoop.class);

pmd-javascript/src/test/java/net/sourceforge/pmd/lang/ecmascript/ast/ASTFunctionNodeTest.java

@@ -23,6 +23,7 @@ public class ASTFunctionNodeTest extends EcmascriptParserTestBase {
         ASTFunctionNode fn = node.getFirstDescendantOfType(ASTFunctionNode.class);
         Assert.assertTrue(fn.isClosure());
         EcmascriptNode<?> body = fn.getBody();
-        Assert.assertTrue(body instanceof ASTReturnStatement);
+        Assert.assertTrue(body instanceof ASTBlock);
+        Assert.assertTrue(body.jjtGetChild(0) instanceof ASTReturnStatement);
     }
 }

pom.xml

@@ -673,7 +673,7 @@
             <dependency>
                 <groupId>org.mozilla</groupId>
                 <artifactId>rhino</artifactId>
-                <version>1.7R3</version>
+                <version>1.7R4</version>
             </dependency>
             <dependency>
                 <groupId>junit</groupId>