Continuing Quick compiler refactoring

With this CL, we no longer include any .cc files - all source
files compile stand-alone.   We still build a separate .so for
each target, but all code in the target-independent "codegen"
directory is now truly independent and doesn't rely on any
target-specific macros to compile.

Header file inclusion is still a bit of a mess, but that will be
addressed in a subsequent CL.

Next up: create a codegen class to hold code generator routines
overrideable by target.

Change-Id: I3a93118d11afeab11f310950a6a73381a99e26e1
diff --git a/src/compiler/codegen/arm/utility_arm.cc b/src/compiler/codegen/arm/utility_arm.cc
index 1873c2a..35f4a2d 100644
--- a/src/compiler/codegen/arm/utility_arm.cc
+++ b/src/compiler/codegen/arm/utility_arm.cc
@@ -14,6 +14,10 @@
  * limitations under the License.
  */
 
+#include "arm_lir.h"
+#include "../codegen_util.h"
+#include "../ralloc_util.h"
+
 namespace art {
 
 /* This file contains codegen for the Thumb ISA. */