Find usages grouping doesn't handle multiple GameObjects with the same name

A scene can contain multiple `GameObject` instances with the same name. Rider's grouping in Find Usages results will merge these results. E.g.

scene1 -> gameObject1 -> A(with TestScript)
scene1 -> gameObject1 -> gameObject2 -> B (with TestScript)

Both instances are grouped under the same `gameObject1`.

Reproduce the reported scene with two GameObjects named gameObject1 and inspect the Find Usages results for TestScript. Trace the grouping entry point from that behavior; done means the two distinct GameObject paths remain separate instead of being merged under the shared name.

Written by the indexing model from the issue text.