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/runtime/quick_exception_handler.cc b/runtime/quick_exception_handler.cc
index 49f6fe0..6581f9b 100644
--- a/runtime/quick_exception_handler.cc
+++ b/runtime/quick_exception_handler.cc
@@ -16,6 +16,7 @@
 
 #include "quick_exception_handler.h"
 
+#include "arch/context.h"
 #include "dex_instruction.h"
 #include "entrypoints/entrypoint_utils.h"
 #include "handle_scope-inl.h"