valueOf is not executed for Atomics.isLockFree in JIT compiler

[YuHao Hu]

the test case
```
let count = 0
function opt() {
    Atomics.isLockFree({
        valueOf: function () {
            count++
        }
    });
}
for (let i = 0; i < 140; i++) {
    opt();
}
print(count)
```

run args:
cmake-build-debug/bin/jsc --useConcurrentJIT=0 ./test.js

expected output:
140

actual output:
99

tested in webkit commit id:
31e77e6ca86aa67419cbcf393a5bedcc925d8cf5

[Radar WebKit Bug Importer]

<rdar://problem/131432975>