Global var set before evaluating function declaration in non-strict block

For the following test case:

```js
function getF() { return f; }
{
if (getF() === f) {
print('Global var set before evaluating function declaration');
}
function f() { return "bar"; }
}

```

I see:

```
#### ch
Global var set before evaluating function declaration

#### sm

#### v8

#### jsc
Global var set before evaluating function declaration
```

According to [B3.3.2](https://tc39.github.io/ecma262/#sec-web-compat-globaldeclarationinstantiation), the global "var" binding should be initialized to undefined, and only set to the block-level value of f when the function declaration is evaluated.