Problem in resolving types inside with. It' reproducible with this simple case:

fileA.ja:
var cls1 = {
    firstName: "test",
    foo: 2
};

var cls2 = {
    secondName: "baf"
};


fileB.js
prom = cls1;

with(prom) {
    console.log(firstName)
    prom = cls2;
    with(prom) {
        console.log(foo);
    }
}

If it's in the same file, then it works correctly.

(In reply to Vladimir Riha from comment #0)
> Please try the attached sample project:
>  - open index.html
>  - Ctrl+Click on {{foo}} on line 26
> 
> => in script.js should open with caret on line 25
> 

This works for me on:
Product Version: NetBeans IDE Dev (Build 1)
Java: 1.7.0_75; Java HotSpot(TM) 64-Bit Server VM 24.75-b04
Runtime: Java(TM) SE Runtime Environment 1.7.0_75-b13
System: Mac OS X version 10.10.2 running on x86_64; UTF-8; en_US (nb)

Sorry, I forgot about the issue with the build number. The build is from today March 19th. 2015.