Resolve directory names to embedded default.xml/default.lua files

at the pathname resolution stage (THEME:GetPath, ResolvePath),
not at loading.  This means that pathnames to Lua files are actually
paths to Lua files, without any extra processing, and we always
load actual files (except for BGAnimation compatibility), not
directories.

(fixes Lua LoadActor() on a directory loading as a BGA and not
as Lua)

stepmania/src/ActorUtil.cpp

@@ -103,6 +103,23 @@ retry:
 		sPath = asPaths[0];
 	}
 
+	if( ft == RageFileManager::TYPE_DIR )
+	{
+		RString sXMLPath = sPath + "/default.xml";
+		if( DoesFileExist(sXMLPath) )
+		{
+			sPath = sXMLPath;
+			return true;
+		}
+
+		RString sLuaPath = sPath + "/default.lua";
+		if( DoesFileExist(sLuaPath) )
+		{
+			sPath = sLuaPath;
+			return true;
+		}
+	}
+
 	sPath = DerefRedir( sPath );
 	return true;
 }
@@ -356,26 +373,6 @@ Actor* ActorUtil::MakeActor( const RString &sPath_, Actor *pParentActor, const X
 	if( ft == FT_Directory && sPath.Right(1) != "/" )
 		sPath += '/';
 
-	if( ft == FT_Directory )
-	{
-		RString sXMLPath = sPath + "default.xml";
-		if( DoesFileExist(sXMLPath) )
-		{
-			sPath = sXMLPath;
-			ft = FT_Xml;
-		}
-	}
-
-	if( ft == FT_Directory )
-	{
-		RString sLuaPath = sPath + "default.lua";
-		if( DoesFileExist(sLuaPath) )
-		{
-			sPath = sLuaPath;
-			ft = FT_Lua;
-		}
-	}
-
 	switch( ft )
 	{
 	case FT_Xml: