Editing variable from object to primitive value, expand arrow isn't removed

[roblourens]

Testing #64003

• Debug this code, set a BP on the console.log:

setInterval(() => {
    let x = { a: 1 };
    console.log(x);
}, 1000);

• Expand the x object
• Edit x to a primitive value like 123
• x still has the expand arrow in the variables pane

• The expand arrow goes away correctly in 1.29

[roblourens]

I also see this for watch entries

[isidorn]

@joaomoreno this looks like an issue with the tree.
If the element with the same ID after a refesh no longer has children the expando is left behind.
Assigning to you also if you have time to investigate.

[joaomoreno]

Pretty sure it's the same as #64074, but let's see.