Go to Definiton does not work in JavaScript namespace

[mjbvz]

From @StaticNoiseLog on May 22, 2017 1:6

• VSCode Version: Code 1.12.2 (19222cdc84ce72202478ba1cec5cb557b71163de, 2017-05-10T13:20:36.315Z)
• OS Version: Windows_NT ia32 10.0.15063
• Extensions:

Extension	Author	Version
vscode-eslint	dbaeumer	1.2.11
vscode-firefox-debug	hbenl	0.13.1
debugger-for-chrome	msjsdiag	3.1.1
unity-debug	Unity	1.2.0

---

Steps to Reproduce:

1. Create a JavaScript File with this content (the variable c99 is used to wrap the Game class in its own namespace, a common pattern in JavaScript):

var c99 = {};

c99.Game = (function () {
    function Count99Game() {
        console.log('Count99 game starts.');
        this.initGame();
    }

    Count99Game.prototype.initGame = function () {
        this.nextCountLabel = document.getElementById('next-count');
    };

    return Count99Game;
})();

2. Right-click on the "initGame" function on line 6 and choose "Go to Definition". Nothing happens. Expected behavior: The cursor should be positioned on line 9 where the function is defined. Works in NetBeans, for example.

Copied from original issue: microsoft/vscode#27045

[mhegazy]

Seems to be same root cause as #16489

[mhegazy]

Partially fixed by #21974. this assignments in nested functions are not tracked correctly still.