Make the low-level component scope able to be an object instead of an array

[NullVoxPopuli-ai-agent]

Supersedes

• No more unknownTemplateOnlyComponent #21077

good luck lil'bot

description from over there:

---

This was really bothering me when I was trying to debug my typedoc renderer

I need to build this ember and test it in that project before starting review.

As part of debugging this, I think I need a button on the inspector to just show the debugRenderTree node

• Show debug render tree node ember-inspector#2709

Before

note for me http://localhost:4201/Runtime/util/page-nav

the failing test result in the first commit:

not ok 13 Chrome 145.0 - [9 ms] - [integration] jit :: Application test: debug render tree: strict-mode components without debug symbols preserve names from scope
    ---
        actual: >
            (unknown template-only component)
        expected: >
            HelloWorld
        stack: >

there is also a failing smoke test so we can e2e the whole setup:

test('scope-based components have correct names in debugRenderTree', async function (assert) {
  await render(<template><HelloWorld @arg="first" /></template>);

  let tree = captureRenderTree(this.owner);
  let names = tree.filter(n => n.type === 'component').map(n => n.name);
  assert.true(
    names.includes('HelloWorld'), 
    'HelloWorld component name is preserved in the render tree (found: ' + names.join(', ') + ')'
  );
});

this also fails

not ok 2 Chrome 145.0 - [47 ms] - Integration | captureRenderTree: scope-based components have correct names in debugRenderTree
    ---
        actual: >
            false
        expected: >
            true
        stack: >
                at Object.<anonymous> (http://localhost:7357/assets/tests-DjOElQH7.js:10419:16)
        message: >
            HelloWorld component name is preserved in the render tree (found: )

After

from my actual app with recursive type/typedoc rendering:

[NullVoxPopuli]

I'm actually surprised how small of a change this is to the vm code