fix: silence autofocus a11y warning inside `<dialog>` (#16341)

.changeset/cuddly-humans-end.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: silence autofocus a11y warning inside `<dialog>`

packages/svelte/src/compiler/phases/2-analyze/visitors/shared/a11y.js

@@ -877,7 +877,7 @@ export function check_element(node, context) {
 		}
 
 		// no-autofocus
-		if (name === 'autofocus') {
+		if (name === 'autofocus' && node.name !== 'dialog' && !is_parent(context.path, ['dialog'])) {
 			w.a11y_autofocus(attribute);
 		}
 

packages/svelte/tests/validator/samples/a11y-no-autofocus/input.svelte

@@ -1 +1,6 @@
-<div autofocus></div>
+<div autofocus></div>
+<dialog autofocus>
+</dialog>
+<dialog>
+	<input autofocus>
+</dialog>