=== tests/cases/compiler/fatarrowfunctionsInFunctionParameterDefaults.ts ===
function fn(x = () => this, y = x()) {
>fn : (x?: () => any, y?: any) => any, Symbol(fn, Decl(fatarrowfunctionsInFunctionParameterDefaults.ts, 0, 0))
>x : () => any, Symbol(x, Decl(fatarrowfunctionsInFunctionParameterDefaults.ts, 0, 12))
>() => this : () => any
>this : any
>y : any, Symbol(y, Decl(fatarrowfunctionsInFunctionParameterDefaults.ts, 0, 27))
>x() : any
>x : () => any, Symbol(x, Decl(fatarrowfunctionsInFunctionParameterDefaults.ts, 0, 12))

    // should be 4
    return y;
>y : any, Symbol(y, Decl(fatarrowfunctionsInFunctionParameterDefaults.ts, 0, 27))

}

fn.call(4); // Should be 4
>fn.call(4) : any
>fn.call : (thisArg: any, ...argArray: any[]) => any, Symbol(Function.call, Decl(lib.d.ts, 234, 45))
>fn : (x?: () => any, y?: any) => any, Symbol(fn, Decl(fatarrowfunctionsInFunctionParameterDefaults.ts, 0, 0))
>call : (thisArg: any, ...argArray: any[]) => any, Symbol(Function.call, Decl(lib.d.ts, 234, 45))
>4 : number