Highligh other usages of a Record member when the cursor is on a Record member

[rrousselGit]

When dealing with classes, clicking on a field highlights all the places where this specific field is used in the current file:

It'd be nice if this worked with records too:

As you can see, even though the cursor is on field, the other example.field later in the main isn't highlighted.

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Ideally this highlight should highlight all usages of the field under cursor within the library, for all Records with a matching shape.

As such, given:

void main() {
  final example = (field: 42);
  example.field; < Cursor on field
}

void fn() {
  final example = (field: 42);
  example.field;
}

Then if the cursor is on example.field in main, the example.field in fn should also be highlighted, as the record shape maches.

[FMorschel]

This would be the same underlying problem as #53024.

We don't currently have an element for referencing them on analyzer.

I'd love this to happen, making this feature more aligned with function types where even though the function may have the same type (return and parameters) we use it for different cases, we get highlight and rename. I'd still say this should work similar to that.

CC @bwilkerson and @scheglov