js--splice-into-items

js--splice-into-items is a compiled Lisp function in `js.el'.

(js--splice-into-items ITEMS CHILD NAME-PARTS)

Splice CHILD into the `js--pitem' ITEMS at NAME-PARTS.
If a class doesn't exist in the tree, create it. Return
the new items list. NAME-PARTS is a list of strings given
the broken-down class name of the item to insert.