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/compiler/optimizing/codegen_test.cc b/compiler/optimizing/codegen_test.cc
index ba4040a..a0fd5ff 100644
--- a/compiler/optimizing/codegen_test.cc
+++ b/compiler/optimizing/codegen_test.cc
@@ -18,6 +18,7 @@
 #include <memory>
 
 #include "base/macros.h"
+#include "base/utils.h"
 #include "builder.h"
 #include "codegen_test_utils.h"
 #include "dex/dex_file.h"
@@ -26,7 +27,6 @@
 #include "nodes.h"
 #include "optimizing_unit_test.h"
 #include "register_allocator_linear_scan.h"
-#include "utils.h"
 #include "utils/arm/assembler_arm_vixl.h"
 #include "utils/arm/managed_register_arm.h"
 #include "utils/mips/managed_register_mips.h"