rbind_to_nodes_info: Update node information.
In autoharp: Semi-Automatic Grading of R and Rmd Scripts

Updates the node information regarding an R expression.

1	rbind_to_nodes_info(id, name, call_status, formal_arg, depth, env_ni)

`id`	The id of the node to be added. This should be an integer of length 1.
`name`	The name of the node.
`call_status`	Is the language object a call or a symbol/literal? This should a logical value.
`formal_arg`	Is the language object a formal argument or not? This should be a logical value.
`depth`	An integer indicating the depth of this language object in the parse tree.
`env_ni`	An environment object, possibly containing a data frame with columns id, name, call_status, formal_arg and depth.