Smoke test: do not wait for a verification on open when an earlier test verified the fixture

The server only verifies on the first file opened, so after the state error
test the smoke test waited for diagnostics that never came whenever that
test's notifications had all arrived before it ended.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: CatarinaGamboa

client/src/test/smoke.test.ts

@@ -41,7 +41,9 @@ suite('Bundled LiquidJava extension', () => {
             const initialDiagnostics = nextFixtureDiagnostics();
             const document = await vscode.workspace.openTextDocument(uri);
             await vscode.window.showTextDocument(document);
-            await initialDiagnostics;
+            // the server only verifies on the first file opened, so an earlier test may have verified this one
+            const verified = api.getState().diagnostics.some(d => vscode.Uri.file(path.resolve(d.file)).fsPath === uri.fsPath);
+            if (!verified) await initialDiagnostics;
 
             const manualDiagnostics = nextFixtureDiagnostics();
             await vscode.commands.executeCommand('liquidjava.verify');