Use ipairs() for helper.child_range

data/lua/helper.lua

@@ -72,17 +72,16 @@ end
 
 --! Returns an iterator over all the subtags of @a cfg with the given @a name.
 function helper.child_range(cfg, tag)
+	local iter, s, i = ipairs(cfg)
 	local function f(s)
-		local c
+		local i,c = s.i
 		repeat
-			local i = s.i
-			c = cfg[i]
+			i,c = iter(cfg,i)
 			if not c then return end
-			s.i = i + 1
 		until c[1] == tag
 		return c[2]
 	end
-	return f, { i = 1 }
+	return f, {i = 1}
 end
 
 --! Returns an array from the subtags of @a cfg with the given @a name

src/scripting/lua_common.cpp

@@ -229,7 +229,7 @@ static int impl_vconfig_size(lua_State *L)
 static int impl_vconfig_collect(lua_State *L)
 {
 	vconfig *v = static_cast<vconfig *>(lua_touserdata(L, 1));
-	v->vconfig::~vconfig();
+	v->~vconfig();
 	return 0;
 }