Bug in obfuscate js code.

Nadie ha tomado este issue todavía.

First at all, sorry for my english, i will try to explain it as better as possible.

I have the following js code:

```javascript
export const Painter = function (elements, data) {
let title = elements.title;
let container = elements.container;
this.prePaint = () => { };
this.paint = () => { };
this.postPaint = () => { };
let finalPaint = () => {
this.prePaint = () => { };
this.paint = () => { };
this.postPaint = () => { };
createPromise();
};

let createPromise = () => {
return new Promise((resolve, reject) => {
this.paint = () => { resolve() }
}).then(() => {
this.prePaint(elements, data);
title.innerHTML = data.title;
container.innerHTML = data.html;
this.postPaint(elements, data);
finalPaint();
});
}

createPromise();
};
```

When i obfuscate this code, it seems like this (it was minimized and formatted by the browser):
```javascript
5: [function(a, b, c) {
"use strict";
Object[_0x56ae("0x6")](c, _0x56ae("0x6e"), {
value: !0
});
c[_0x56ae("0xb5")] = function(a, b) {
var c = this
, d = a[_0x56ae("0xb6")]
, e = a[_0x56ae("0xb7")];
this.prePaint = function() {} //// THIS LINE
,
this[_0x56ae("0xb8")] = function() {}
,
this[_0x56ae("0xb9")] = function() {}
;
var f = function() {
c[_0x56ae("0xba")] = function() {}
,
c.paint = function() {} ///// THIS LINE TOO
,
c.postPaint = function() {} ///// AND THIS LINE TOO
,
g()
}
, g = function() {
return new Promise(function(a) {
c.paint = function() {
a()
}
}
)[_0x56ae("0x24")](function() {
c[_0x56ae("0xba")](a, b),
d.innerHTML = b[_0x56ae("0xb6")],
e.innerHTML = b[_0x56ae("0x34")],
c.postPaint(a, b),
f()
})
};
g()
}
}
, {}]
```

You can see, how the fisrt this.prePaint has not transformed to this[_0x56ae("0xba")] and when this is called, it said undefined function.
But if i insert breaklines between all this "problematic" lines, it work. Like this:

```javascript

export const Painter = function (elements, data) {
let title = elements.title;
let container = elements.container;

this.prePaint = () => { };

this.paint = () => { };

this.postPaint = () => { };

let finalPaint = () => {

this.prePaint = () => { };

this.paint = () => { };

this.postPaint = () => { };

createPromise();
};

let createPromise = () => {
return new Promise((resolve, reject) => {

this.paint = () => { resolve() }

}).then(() => {
this.prePaint(elements, data);

title.innerHTML = data.title;
container.innerHTML = data.html;

this.postPaint(elements, data);

finalPaint();

});
}

createPromise();
};
```

I did fix this issue with this partial solution, but i don't know where more places of my code, will appear the same issue.

Thank you

No se especifica ningún archivo del repositorio, prueba, versión ni configuración. Empieza reproduciendo el ejemplo de Painter proporcionado mediante el pipeline de ofuscación de gulp y compara las referencias generadas para this.prePaint, this.paint y this.postPaint. Se considera hecho cuando el código ofuscado conserva las referencias a propiedades invocables sin requerir saltos de línea insertados.

Escrito por el modelo de indexación a partir del texto del issue.