Move most of runtime/base to libartbase/base

Enforce the layering that code in runtime/base should not depend on
runtime by separating it into libartbase.  Some of the code in
runtime/base depends on the Runtime class, so it cannot be moved yet.
Also, some of the tests depend on CommonRuntimeTest, which itself needs
to be factored (in a subsequent CL).

Bug: 22322814
Test: make -j 50 checkbuild
      make -j 50 test-art-host

Change-Id: I8b096c1e2542f829eb456b4b057c71421b77d7e2
diff --git a/dex2oat/linker/image_test.h b/dex2oat/linker/image_test.h
index c6ce951..319c5fb 100644
--- a/dex2oat/linker/image_test.h
+++ b/dex2oat/linker/image_test.h
@@ -28,6 +28,7 @@
 #include "art_method-inl.h"
 #include "base/file_utils.h"
 #include "base/unix_file/fd_file.h"
+#include "base/utils.h"
 #include "class_linker-inl.h"
 #include "common_compiler_test.h"
 #include "compiler_callbacks.h"
@@ -46,7 +47,6 @@
 #include "oat_writer.h"
 #include "scoped_thread_state_change-inl.h"
 #include "signal_catcher.h"
-#include "utils.h"
 
 namespace art {
 namespace linker {