feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/com/sun/source/tree/VariableTree.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.source.tree;
+
+import javax.lang.model.element.Name;
+
+/**
+ * A tree node for a variable declaration.
+ *
+ * For example:
+ * <pre>
+ *   <em>modifiers</em> <em>type</em> <em>name</em> <em>initializer</em> ;
+ *   <em>modifiers</em> <em>type</em> <em>qualified-name</em>.this
+ * </pre>
+ *
+ * @jls sections 8.3 and 14.4
+ *
+ * @author Peter von der Ah&eacute;
+ * @author Jonathan Gibbons
+ * @since 1.6
+ */
+@jdk.Exported
+public interface VariableTree extends StatementTree {
+    ModifiersTree getModifiers();
+    Name getName();
+    ExpressionTree getNameExpression();
+    Tree getType();
+    ExpressionTree getInitializer();
+}