Previously arrays were falling back to Object previewer which was
showing indices as properties- which was not correct. This PR implements
dedicated `ArrayPreviewer` that follows Firefox's `ArrayLike` pattern.
Currently array preview support only length display, it does not
implement showing array items yet.
Now(Correct and follows Firefox pattern, Array items coming in a
follow-up PR):
<img width="510" height="167" alt="image"
src="https://github.com/user-attachments/assets/a51f04d4-333c-4d7c-8159-18121c967670"
/>
Before(We shouldn't see these values- it's incorrect):
<img width="1294" height="721" alt="image"
src="https://github.com/user-attachments/assets/2218a622-c791-4436-958e-1a5553de7864"
/>
Testing: Current tests are passing.
Fixes: Part of #36027
Signed-off-by: atbrakhi <atbrakhi@igalia.com>
This change implements showing scope variable in Debugger tab. This is
still early and we have more work to do.
Next step is building correct data structure and showing different types
of variables.
Testing: Manual as well as current tests are passing.
Fixes: part of #36027
Signed-off-by: atbrakhi <atbrakhi@igalia.com>
Co-authored-by: eri <eri@igalia.com>
