wip: initial PackedScene and RefCounted handling

Now printing a short filename for the resource_path behind the logged
PackedScene or RefCounted object, if it exists. Could perhaps get wiser
about applying this to more types, but for now I'm hitting objects that
show up in my own work, and these seemed like a quick win.

Testing to come before the next version release!

addons/log/log.gd

@@ -50,6 +50,7 @@ static var COLORS_TERMINAL_SAFE = {
 	"^": "orange",
 	"dict_key": "magenta",
 	"vector_value": "purple",
+	"class_name": "magenta",
 	TYPE_NIL: "pink",
 	TYPE_BOOL: "pink",
 	TYPE_INT: "green",
@@ -104,6 +105,7 @@ static var COLORS_PRETTY_V1 = {
 	"^": "coral",
 	"dict_key": "cadet_blue",
 	"vector_value": "purple",
+	"class_name": "cadet_blue",
 	TYPE_NIL: "pink",
 	TYPE_BOOL: "pink",
 	TYPE_INT: "cornflower_blue",
@@ -250,6 +252,15 @@ static func _to_pretty(msg, opts={}):
 		return str(Log.color_wrap("&", opts), '"%s"' % msg)
 	elif msg is NodePath:
 		return str(Log.color_wrap("^", opts), '"%s"' % msg)
+	elif msg is Object and msg.has_method("data"):
+		return Log._to_pretty(msg.data(), opts)
+	elif msg is Object and msg.has_method("to_printable"):
+		return Log._to_pretty(msg.to_printable(), opts)
+	elif msg is PackedScene:
+		if msg.resource_path != "":
+			return str(Log.color_wrap("PackedScene:", opts), '%s' % msg.resource_path.get_file())
+		else:
+			return Log.color_wrap(msg, opts)
 	elif msg is Vector2 or msg is Vector2i:
 		if use_color:
 			return '(%s,%s)' % [
@@ -258,10 +269,11 @@ static func _to_pretty(msg, opts={}):
 				]
 		else:
 			return '(%s,%s)' % [msg.x, msg.y]
-	elif msg is Object and msg.has_method("data"):
-		return Log._to_pretty(msg.data(), opts)
-	elif msg is Object and msg.has_method("to_printable"):
-		return Log._to_pretty(msg.to_printable(), opts)
+	elif msg is RefCounted:
+		if msg.get_script() != null and msg.get_script().resource_path != "":
+			return Log.color_wrap(msg.get_script().resource_path.get_file(), assoc(opts, "typeof", "class_name"))
+		else:
+			return Log.color_wrap(msg.get_class(), assoc(opts, "typeof", "class_name"))
 	else:
 		return Log.color_wrap(msg, opts)