Modernize Function constructor

The current Function constructor is outdated and unsafe, operating on strings. Even when a function object is passed as the source, it is converted to a string, which is a performance and security footgun, and leads to hard to understand errors:

const fn = function () { return 1 };
const fn2 = new Function(fn);
// Uncaught SyntaxError: Function statements require a function name

Furthermore, the constructor expects arguments that cannot be obtained from a function instance, which is an API design anti-pattern and makes it impossible to properly clone functions. The only way to clone functions is by wrapping them, which hinders debugging as it adds unnecessary noise to the stack trace, or through eval() which has a host of security and performance issues.

It seems that an obvious solution is to overload the constructor to accept a function object as the source, in which case it would be cloned.