Fixed compile error on linux.

git-svn-id: https://angleproject.googlecode.com/svn/trunk@1152 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/DirectiveHandler.cpp b/src/compiler/DirectiveHandler.cpp
index 23a492a..4497288 100644
--- a/src/compiler/DirectiveHandler.cpp
+++ b/src/compiler/DirectiveHandler.cpp
@@ -8,7 +8,7 @@
 
 #include <sstream>
 
-#include "compiler/Debug.h"
+#include "compiler/debug.h"
 #include "compiler/Diagnostics.h"
 
 static TBehavior getBehavior(const std::string& str)