j2k: flatten test cases and testData directory structure

Move j2k/test/tests -> j2k/tests, j2k/test/testData -> j2k/testData

j2k/testData/fileOrElement/class/ClassShadowing.java

@@ -0,0 +1,13 @@
+package test;
+
+public class Short {
+	public static Short valueOf(String value) {return new Short();}
+}
+
+class Test {
+	public static void test() {
+		Short.valueOf("1");
+		test.Short.valueOf("1");
+		java.lang.Short.valueOf("1");
+	}
+}