The purpose of this is to fix how objects were previously evaluated in
the developer tools.
- Before this, evaluating an object such as the `window` would `panic!`
- After this, evaluating an object such as the `window` outputs `[object
Window]`
A few things to note:
- This commit contains `unsafe` code.
- This does not contain a test because the developer tools cannot be properly tested until #5971 lands.
