Different casting rules in setTimeout/setInterval in nativescript #7567

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 6.0.2
• Cross-platform modules: 6.0.1
• Android Runtime: 6.0.0
• iOS Runtime:
• Plugin(s):

Describe the bug

Nativescript has different casting rules compared to browser javascript. (at least in timer.setTimeout and timer.setInterval functions).

To Reproduce

setTimeout(() => console.log("Hello"), false);

Fails in nativescript, but suceeds in js.

Expected behavior
Casting rules should be the same.

Sample project

Additional context

Many libraries out there are using code like

setTimeout(callback, false);

which fails and is usually hard to debug. Was bitten by redux-perist lib.

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