win32: fix the paths to debug headers

backtrace_stackwalk.cpp

@@ -8,7 +8,6 @@
 
 #include "backtrace.hpp"
 
-#include "debug.hpp"
 #include "types.hpp"
 #include "win32/except.hpp"
 #include "win32/windows.hpp"

debug_win32.cpp

@@ -6,8 +6,6 @@
  * Copyright 2016 Danny Robson <danny@nerdcruft.net>
  */
 
-#include "debug.hpp"
-
 #include "log.hpp"
 #include "win32/except.hpp"
 #include "win32/windows.hpp"

io_win32.cpp

@@ -8,7 +8,6 @@
 
 #include "io_win32.hpp"
 
-#include "debug.hpp"
 #include "win32/except.hpp"
 #include "win32/windows.hpp"
 

thread/semaphore_win32.cpp

@@ -11,8 +11,6 @@
 #include "../win32/except.hpp"
 #include "../win32/windows.hpp"
 
-#include "../debug.hpp"
-
 #include <winbase.h>
 
 using cruft::thread::semaphore;

win32/except.cpp

@@ -11,8 +11,8 @@
 
 #include "windows.hpp"
 
+#include "../debug/assert.hpp"
 #include "../annotation.hpp"
-#include "../debug.hpp"
 
 #include <winerror.h>
 #include <winbase.h>

win32/registry.cpp

@@ -9,7 +9,6 @@
 #include "registry.hpp"
 
 #include "../cast.hpp"
-#include "../debug.hpp"
 #include "except.hpp"
 
 #include <winerror.h>