fix render tags as well

Author: Rich-Harris

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

@@ -1087,6 +1087,7 @@ function check_element(node, state) {
 							node.type === 'SvelteElement' ||
 							node.type === 'SlotElement' ||
 							node.type === 'Component' ||
+							node.type === 'RenderTag' ||
 							(node.type === 'RegularElement' &&
 								(a11y_labelable.includes(node.name) || node.name === 'slot'))
 						) {

packages/svelte/tests/validator/samples/a11y-label-has-associated-control-3/input.svelte

@@ -0,0 +1,7 @@
+<script>
+  import Component from './component.svelte'
+</script>
+
+<label>
+  {@render x()}
+</label>

packages/svelte/tests/validator/samples/a11y-label-has-associated-control-3/warnings.json

@@ -0,0 +1 @@
+[]