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/optimizing/builder.h b/compiler/optimizing/builder.h
index c510136..3e4a616 100644
--- a/compiler/optimizing/builder.h
+++ b/compiler/optimizing/builder.h
@@ -17,13 +17,13 @@
 #ifndef ART_COMPILER_OPTIMIZING_BUILDER_H_
 #define ART_COMPILER_OPTIMIZING_BUILDER_H_
 
+#include "base/arena_object.h"
 #include "dex_file.h"
 #include "dex_file-inl.h"
 #include "driver/compiler_driver.h"
 #include "driver/dex_compilation_unit.h"
 #include "optimizing_compiler_stats.h"
 #include "primitive.h"
-#include "utils/arena_object.h"
 #include "utils/growable_array.h"
 #include "nodes.h"