Move arenas into runtime

Moved arena pool into the runtime.

Motivation:
Allow GC to use arena allocators, recycle arena pool for linear alloc.

Bug: 19264997
Change-Id: I8ddbb6d55ee923a980b28fb656c758c5d7697c2f
diff --git a/compiler/dex/mir_graph.h b/compiler/dex/mir_graph.h
index 020136c..8e5f6ac 100644
--- a/compiler/dex/mir_graph.h
+++ b/compiler/dex/mir_graph.h
@@ -19,17 +19,17 @@
 
 #include <stdint.h>
 
+#include "base/arena_containers.h"
+#include "base/scoped_arena_containers.h"
 #include "dex_file.h"
 #include "dex_instruction.h"
 #include "dex_types.h"
 #include "invoke_type.h"
 #include "mir_field_info.h"
 #include "mir_method_info.h"
-#include "utils/arena_bit_vector.h"
-#include "utils/arena_containers.h"
-#include "utils/scoped_arena_containers.h"
 #include "reg_location.h"
 #include "reg_storage.h"
+#include "utils/arena_bit_vector.h"
 
 namespace art {