In js2-mode, after removing a pair of parentheses next to a function, '(' can't be inserted again.

[crocket]

1. type

function B() {

}

2. remove ()

function B {

}

3. Try typing '(' after 'function B', and you see 'Wrong type argument: stringp, .....' in the echo area.

The content of err is (args-out-of-range 54 235)

[joaotavora]

Merging this into #22 as it seems to be closely related.

[crocket]

The commit, 7319b04, seems to fix this issue at least superficially.

I don't know if the underlying issue was fixed for good. however, congratulation.

[joaotavora]

As I explain in #22, you might want to open a issue report with the js2-mode, redirecting them to this issue, so they may consider having they custom forward-sexp implementation raise scan-errors instead of args-out-of-range. To be clear, the error is legitimate, but its subclass should change to reflects the semantics.