[js] Wrong auto-generated constructor for a child class with rest args in constructor

```haxe
class Main extends Base {
static function main() {
new Main(); //should not print anything
}
}

class Base {
public function new(...args:Any) {
for(arg in args) {
trace(arg);
}
}
}
```
```
$ haxe --main Main --js test.js && node test.js
Main.hx:11: []
```
because
```js
var Main = function() {
var $l=arguments.length;
var args = new Array($l>0?$l-0:0);
for(var $i=0;$i<$l;++$i){args[$i-0]=arguments[$i];}
Base.call(this,args); //this should be generated as Base.apply(this, args)
};
```

Start by running the minimal Main/Base reproduction from the issue with Haxe's JavaScript target, then inspect the generated Main constructor and its Base call. Compare the rest-argument handling with the expected JavaScript call semantics. Done means new Main() produces no trace output and the generated constructor passes the arguments correctly to Base.

Written by the indexing model from the issue text.