patch 8.2.1350: Vim9: no test for error message when redefining function

Problem:    Vim9: no test for error message when redefining function.
Solution:   Add a test.
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index 221b38d..b96411f 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -1651,6 +1651,19 @@
   delete('XexportedFunc.vim')
 enddef
 
+def Test_func_redefine_fails()
+  let lines =<< trim END
+    vim9script
+    def Func()
+      echo 'one'
+    enddef
+    def Func()
+      echo 'two'
+    enddef
+  END
+  CheckScriptFailure(lines, 'E1073:')
+enddef
+
 def Test_fixed_size_list()
   # will be allocated as one piece of memory, check that changes work
   let l = [1, 2, 3, 4]
diff --git a/src/version.c b/src/version.c
index c98d2ab..00d8c2d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1350,
+/**/
     1349,
 /**/
     1348,