Fix 071-dexfile by having run-test use a unique directory

If userdata.img is flashed, the /data/art-test is owned by the system
user.  However, 071 requires the directory it runs in to have be owned
by the running user (root in eng builds).

Change-Id: I5230908291fd2ff6c5ebda98cfc3ef4c7ea7482e
diff --git a/test/068-classloader/src/FancyLoader.java b/test/068-classloader/src/FancyLoader.java
index 5eb0249..44f335b 100644
--- a/test/068-classloader/src/FancyLoader.java
+++ b/test/068-classloader/src/FancyLoader.java
@@ -38,7 +38,7 @@
     static final String CLASS_PATH = "classes-ex/";
 
     /* this is the "alternate" DEX/Jar file */
-    static final String DEX_FILE = "/data/art-test/068-classloader-ex.jar";
+    static final String DEX_FILE = "/data/run-test/068-classloader-ex.jar";
 
     /* on Dalvik, this is a DexFile; otherwise, it's null */
     private Class mDexClass;