reduce header dependencies (part 2/2)

gtk2_ardour/luadoc.cc

@@ -5,6 +5,7 @@
 #include "ardour/luabindings.h"
 #include "ardour/revision.h"
 #include "luainstance.h"
+#include "LuaBridge/LuaBridge.h"
 
 #ifdef WAF_BUILD
 #include "gtk2ardour-version.h"

gtk2_ardour/luainstance.cc

@@ -26,6 +26,8 @@
 #include "ardour/route.h"
 #include "ardour/session.h"
 
+#include "LuaBridge/LuaBridge.h"
+
 #include "ardour_ui.h"
 #include "public_editor.h"
 #include "region_selection.h"

gtk2_ardour/luainstance.h

@@ -13,10 +13,13 @@
 #include "ardour/session_handle.h"
 
 #include "lua/luastate.h"
-#include "LuaBridge/LuaBridge.h"
 
 #include "luasignal.h"
 
+namespace luabridge {
+	class LuaRef;
+}
+
 typedef std::bitset<LuaSignal::LAST_SIGNAL> ActionHook;
 
 class LuaCallback : public ARDOUR::SessionHandlePtr, public sigc::trackable

gtk2_ardour/processor_box.cc

@@ -61,6 +61,8 @@
 #include "ardour/session.h"
 #include "ardour/types.h"
 
+#include "LuaBridge/LuaBridge.h"
+
 #include "actions.h"
 #include "ardour_dialog.h"
 #include "ardour_ui.h"