Bug in obfuscate js code.

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 repository file, test, version, or configuration is named. Start by reproducing the supplied Painter example through the gulp obfuscation pipeline and compare the generated references for this.prePaint, this.paint, and this.postPaint. Done means the obfuscated code preserves callable property references without requiring inserted line breaks.

Written by the indexing model from the issue text.