extensions/references-view/src/calls/model.ts/CallsModel/getEditorHighlights
class CallsModel:	getEditorHighlights(item: CallItem, uri: vscode.Uri): vscode.Range[] | undefined {
		if (!item.locations) {
			return item.item.uri.toString() === uri.toString() ? [item.item.selectionRange] : undefined;
		}
		return item.locations
			.filter(loc => loc.uri.toString() === uri.toString())
			.map(loc => loc.range);
	}