Fix dependencies to be on core-libart, not core

Change-Id: I002f4ab170146d48210655fbed44328a289873f5
diff --git a/runtime/dex_method_iterator_test.cc b/runtime/dex_method_iterator_test.cc
index 9961df9..2941db6 100644
--- a/runtime/dex_method_iterator_test.cc
+++ b/runtime/dex_method_iterator_test.cc
@@ -36,7 +36,7 @@
 TEST_F(DexMethodIteratorTest, Basic) {
   ScopedObjectAccess soa(Thread::Current());
   std::vector<const DexFile*> dex_files;
-  dex_files.push_back(OpenDexFile("core"));
+  dex_files.push_back(OpenDexFile("core-libart"));
   dex_files.push_back(OpenDexFile("conscrypt"));
   dex_files.push_back(OpenDexFile("okhttp"));
   dex_files.push_back(OpenDexFile("core-junit"));