id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
301	AST root node: override child	Stephen Siegel	zirkel	"The `child` method defined in `ASTNodeIF` should be overridden in `RootNodeIF` as follows:
{{{
	public GlobalScopeNodeIF child(int index) throws NoSuchElementException;
}}}
This is assuming all children of a root node are global scope nodes.

Similar actions should be taken in similar circumstances, where a sub-class is known to return a sub-type of the return type of a method defined in a class.
"	enhancement	closed	major	1.1	ast	1.1	fixed	child ast node child