initial commit, 4.5 stable

modules/gdscript/tests/scripts/analyzer/warnings/unused_signal.gd

@@ -0,0 +1,29 @@
+# Doesn't produce the warning:
+signal used_as_first_class_signal()
+signal used_with_signal_constructor()
+signal used_with_signal_emit()
+signal used_with_object_emit_signal()
+signal used_with_object_connect()
+signal used_with_object_disconnect()
+signal used_with_self_prefix()
+
+# Produce the warning:
+signal used_with_dynamic_name()
+signal just_unused()
+@warning_ignore("unused_signal")
+signal unused_but_ignored()
+
+func no_exec():
+	print(used_as_first_class_signal)
+	print(Signal(self, "used_with_signal_constructor"))
+	used_with_signal_emit.emit()
+	print(emit_signal("used_with_object_emit_signal"))
+	print(connect("used_with_object_connect", Callable()))
+	disconnect("used_with_object_disconnect", Callable())
+	print(self.emit_signal("used_with_self_prefix"))
+
+	var dynamic_name := "used_with_dynamic_name"
+	print(emit_signal(dynamic_name))
+
+func test():
+	pass