ART: Clean up includes.

Reduce dependencies to improve incremental build times.
Break up circular dependency involving class_linker-inl.h.

Change-Id: I4be742c5c2b5cd9855beea86630fd68aab76b0db
diff --git a/runtime/utils_test.cc b/runtime/utils_test.cc
index 623a3ec..aa7bc64 100644
--- a/runtime/utils_test.cc
+++ b/runtime/utils_test.cc
@@ -16,6 +16,7 @@
 
 #include "utils.h"
 
+#include "class_linker-inl.h"
 #include "common_runtime_test.h"
 #include "mirror/array.h"
 #include "mirror/array-inl.h"