Break apart header files.

Create libart-gtest for common runtime and compiler gtest routines.
Rename CompilerCallbacksImpl that is quick compiler specific.
Rename trace clock source constants to not use the overloaded profiler term.

Change-Id: I4aac4bdc7e7850c68335f81e59a390133b54e933
diff --git a/compiler/elf_writer_test.cc b/compiler/elf_writer_test.cc
index e637cfb..e479322 100644
--- a/compiler/elf_writer_test.cc
+++ b/compiler/elf_writer_test.cc
@@ -16,8 +16,10 @@
 
 #include "elf_file.h"
 
+#include "base/stringprintf.h"
 #include "common_compiler_test.h"
 #include "oat.h"
+#include "utils.h"
 
 namespace art {