[lua] fix broken type refs

std/lua/PairTools.hx

@@ -32,7 +32,7 @@ class PairTools {
 	public static function ipairsConcat<T>(table1:Table<Int,T>, table2:Table<Int,T>){
 		var ret:Table<Int,T> = Table.create();
 		ipairsFold(table1, function(a,b,c:Table<Int,T>){ c[a] = b; return c;}, ret);
-		var size = lua.Boot.tableMaxN(ret);
+		var size = lua.TableTools.maxn(ret);
 		ipairsFold(table2, function(a,b,c:Table<Int,T>){ c[a + size] = b; return c;}, ret);
 		return ret;
 	}

std/lua/_std/sys/FileSystem.hx

@@ -81,7 +81,7 @@ class FileSystem {
 	}
 
 	public inline static function readDirectory( path : String ) : Array<String> {
-		var parts : Table<Dynamic, Dynamic> = Table.pack(Lfs.dir(path));
+		var parts : Table<Dynamic, Dynamic> = lua.TableTools.pack(Lfs.dir(path));
 		var itr = function(){
 			var res = parts[1](parts[2]);
 			while(res == "." || res == ".."){