trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing. This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
diff --git a/src/cpu/simple_thread.hh b/src/cpu/simple_thread.hh
index 5420519..dcf0663 100644
--- a/src/cpu/simple_thread.hh
+++ b/src/cpu/simple_thread.hh
@@ -42,6 +42,8 @@
#include "config/the_isa.hh"
#include "cpu/thread_context.hh"
#include "cpu/thread_state.hh"
+#include "debug/FloatRegs.hh"
+#include "debug/IntRegs.hh"
#include "mem/request.hh"
#include "sim/byteswap.hh"
#include "sim/eventq.hh"
