Function completion_labels

tests/integration/blade_debug.rs:156–187

(
        backend: &phpantom_lsp::Backend,
        uri: &str,
        line: u32,
        col: u32,
    )

    // ── Helper: completion labels at a position ─────────────────────────

    async fn completion_labels(
        backend: &phpantom_lsp::Backend,
        uri: &str,
        line: u32,
        col: u32,
    ) -> Vec<String> {
        let params = CompletionParams {
            text_document_position: TextDocumentPositionParams {
                text_document: TextDocumentIdentifier {
                    uri: Url::parse(uri).unwrap(),
                },
                position: Position {
                    line,
                    character: col,
                },
            },
            work_done_progress_params: WorkDoneProgressParams::default(),
            partial_result_params: PartialResultParams::default(),
            context: Some(CompletionContext {
                trigger_kind: CompletionTriggerKind::TRIGGER_CHARACTER,
                trigger_character: Some(">".to_string()),
            }),
        };
        let result = backend.completion(params).await.unwrap();
        match result {
            Some(CompletionResponse::Array(items)) => items.into_iter().map(|i| i.label).collect(),
            Some(CompletionResponse::List(list)) => {
                list.items.into_iter().map(|i| i.label).collect()
            }
            None => vec![],
        }
    }

    // ── Helper: GTD returns something ───────────────────────────────────