Non-terminal symbol `TextArgument`

Defining rules for nonterminal symbol TextArgument:

`TextArgument`		`SYMBOL`
		`TextRef`

Occurrences of symbol TextArgument in body of other rules:

`TextArguments`		`TextArgument`
`TextArguments`		`TextArguments` `ListSep_opt` `TextArgument`

Non-terminal symbol TextArgument