fix: allow file redirects at the end of a function

This will parse functions w/ a redirect as a function def rather than redirect statement w/ a function def inside of it

grammar.js

@@ -289,7 +289,7 @@ module.exports = grammar({
       optional(prec(1, ';;')),
     ),
 
-    function_definition: $ => seq(
+    function_definition: $ => prec.right(seq(
       choice(
         seq(
           'function',
@@ -308,7 +308,8 @@ module.exports = grammar({
           $.subshell,
           $.test_command),
       ),
-    ),
+      optional($.file_redirect),
+    )),
 
     compound_statement: $ => seq(
       '{',

test/corpus/statements.txt

@@ -986,14 +986,13 @@ do_nothing() { return 0 }
             (word))
           (word)
           (word)))))
-  (redirected_statement
-    (function_definition
-      (word)
-      (compound_statement
-        (command
-          (command_name
-            (word))
-          (word))))
+  (function_definition
+    (word)
+    (compound_statement
+      (command
+        (command_name
+          (word))
+        (word)))
     (file_redirect
       (file_descriptor)
       (number)))