ART: Add object-array-alloc-inl.h

In an effort to reduce the (transitive) proliferation of heap-inl
add a specific inline header for object array allocation.

Bug: 118385392
Test: mmma art
Test: m test-art-host
Change-Id: I0d7c40ed53708d4c759190961b40f0cac3fe696d
diff --git a/runtime/method_handles_test.cc b/runtime/method_handles_test.cc
index d123754..6a7eb8c 100644
--- a/runtime/method_handles_test.cc
+++ b/runtime/method_handles_test.cc
@@ -22,6 +22,7 @@
 #include "handle_scope-inl.h"
 #include "jvalue-inl.h"
 #include "mirror/method_type.h"
+#include "mirror/object_array-alloc-inl.h"
 #include "mirror/object_array-inl.h"
 #include "reflection.h"
 #include "scoped_thread_state_change-inl.h"