[JS] Generated closure leads to a runtime exception

[gene-pavlovsky]

Haxe 4.3.6.
This example is a bit nonsensical, real-world code makes sense, I just pared it down into a small example where the issue can be reproduced.

package;

using Lambda;

class Test {
  static final list = [ 1, 2, 3 ];

  static function main() {
    trace([ 5, 6, 4 ].exists(list.contains));
  }
}

-D no-inline

-cp src
-main Test

-js bin/test.js

--cmd node bin/test.js

The following code compiles (when using -D no-inline), becoming:

...
console.log("src/Test.hx:9:",Lambda.exists([5,6,4],($_=Test.list,$bind($_,$_.contains))));
...

The $_ refers to a (JS) array, which doesn't have the contains function (JS uses includes for the same thing), therefore $_.contains is null and the generated binding (f) is faulty. The code fails at runtime with this error:
TypeError: f is not a function