JSTests/stress/array-concat-stale-assert.js

class C0{}
class C1{}
function f2(a3,a4,a5){
    const v6 = {__proto__:a4}
    return a4
}
f2(C1,C1)
Object.defineProperty(C1,0,{get:f2, set:f2})
function f9(){
    const v10 = `
    v10.match(/Dia\D/g).concat()
    `
    return eval(v10)
}
f9()