Bug 136756 http://bugzilla.mozilla.org/show_bug.cgi?id=136756#c29

from the book of this can't be good by leaf

bonsai answer's leaf's question thusly:
No files matched this file name. It may have been added recently.
it does indicate that a file by the correct spelling exists...

string/obsolete/nsString.cpp

@@ -47,7 +47,7 @@
 #include "nsDebug.h"
 
 #ifndef nsCharTraits_h___
-#include "nsCharTratis.h"
+#include "nsCharTraits.h"
 #endif
 
 #ifndef RICKG_TESTBED

xpcom/string/obsolete/nsString.cpp

@@ -47,7 +47,7 @@
 #include "nsDebug.h"
 
 #ifndef nsCharTraits_h___
-#include "nsCharTratis.h"
+#include "nsCharTraits.h"
 #endif
 
 #ifndef RICKG_TESTBED