Move remaining runtime/base stuff to libartbase

Move the remainder of the Arena stuff, plus dumpable and
runtime/*memory_region* to libartbase.  More preparation to build
profiling library.

Bug: 22322814
Test: make -j 50 checkbuild
Change-Id: Iaf26d310c89bc58846553281576c18102f5e4122
diff --git a/compiler/utils/assembler.cc b/compiler/utils/assembler.cc
index 944c64b..421c1b6 100644
--- a/compiler/utils/assembler.cc
+++ b/compiler/utils/assembler.cc
@@ -20,8 +20,8 @@
 #include <vector>
 
 #include "base/casts.h"
+#include "base/memory_region.h"
 #include "globals.h"
-#include "memory_region.h"
 
 namespace art {