Object literal cast compiles to produce JS with syntax error

[henrymercer]

TypeScript Version: 2.0.0

Code

class A { }

window.onload = () => {
    (<A>{}).toString();
};

Expected behavior: The toString line should compile to: ({}).toString() or ({}.toString()) and hence there should not be a runtime syntax error

Actual behavior: The toString line compiles to {}.toString(), which is incorrect syntax and hence a syntax error is thrown at runtime.

[mhegazy]

thanks @henrymercer !