Remove RepositoryTestCase from DirCacheCGitCompatabilityTest

This test doesn't actually depend upon the large data set we have
in the RepositoryTestCase, so drop that from the dependency and
use the more simple LocalDiskRepositoryTestCase instead.

Change-Id: I0fd4affe1dd5ec86e8c3253db42df11d3b612e36
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCacheCGitCompatabilityTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008, Google Inc.
+ * Copyright (C) 2008-2010, Google Inc.
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
@@ -52,13 +52,14 @@ import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
+import org.eclipse.jgit.junit.LocalDiskRepositoryTestCase;
 import org.eclipse.jgit.lib.FileMode;
 import org.eclipse.jgit.lib.ObjectId;
-import org.eclipse.jgit.lib.RepositoryTestCase;
+import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.treewalk.TreeWalk;
 import org.eclipse.jgit.util.JGitTestUtil;
 
-public class DirCacheCGitCompatabilityTest extends RepositoryTestCase {
+public class DirCacheCGitCompatabilityTest extends LocalDiskRepositoryTestCase {
 	private final File index = pathOf("gitgit.index");
 
 	public void testReadIndex_LsFiles() throws Exception {
@@ -75,6 +76,7 @@ public class DirCacheCGitCompatabilityTest extends RepositoryTestCase {
 	}
 
 	public void testTreeWalk_LsFiles() throws Exception {
+		final Repository db = createBareRepository();
 		final Map<String, CGitIndexRecord> ls = readLsFiles();
 		final DirCache dc = new DirCache(index);
 		assertEquals(0, dc.getEntryCount());