It's still in tags.e, but a little disguised. It now uses the get_message function, but you can just change it back to the old string way.
In Beta 5, tags.e, line 3509. Or you could search for 'generate-debug.' Or, you could also just bind the functions to keybindings, which would upgrade automatically, so you don't have to go changing macro code with every version. Hope this helps.