New debug scheme with explicit debug channels declaration.

diff --git a/dlls/shell32/shellpath.c b/dlls/shell32/shellpath.c
index d0bba2e..db4248a 100644
--- a/dlls/shell32/shellpath.c
+++ b/dlls/shell32/shellpath.c
@@ -13,6 +13,8 @@
 #include "shlobj.h"
 #include "shell32_main.h"
 
+DEFAULT_DEBUG_CHANNEL(shell)
+
 /*************************************************************************
  * PathIsRoot [SHELL32.29]
  */