fix: support snippets with multiple arguments

Author: dummdidumm

packages/svelte2tsx/src/htmlxtojsx_v2/nodes/RenderTag.ts

@@ -9,12 +9,12 @@ export function handleRenderTag(str: MagicString, renderTag: BaseNode): void {
     str.overwrite(renderTag.start, renderTag.expression.start, ';__sveltets_2_ensureSnippet(', {
         contentOnly: true
     });
-    if (renderTag.argument) {
-        str.overwrite(
-            withTrailingPropertyAccess(str.original, renderTag.argument.end),
-            renderTag.end,
-            '));'
-        );
+
+    // argument was present until https://github.com/sveltejs/svelte/pull/9988, remove at some point
+    const arg = renderTag.argument || renderTag.arguments?.[renderTag.arguments.length - 1];
+
+    if (arg) {
+        str.overwrite(withTrailingPropertyAccess(str.original, arg.end), renderTag.end, '));');
     } else {
         str.overwrite(
             withTrailingPropertyAccess(str.original, renderTag.expression.end),