patch 8.2.3858: Vim9: not enough tests

Problem:    Vim9: not enough tests.
Solution:   Add tests for :try/:catch and :redir. Add missing type check.
diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
index 6e01d99..2d86b6b 100644
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -1558,6 +1558,23 @@
     redir END
   END
   CheckDefFailure(lines, 'E1141:')
+
+  lines =<< trim END
+      var text: string
+      redir => text
+        echo 'hello'
+        redir > Xfile
+      redir END
+  END
+  CheckDefFailure(lines, 'E1185:')
+
+  lines =<< trim END
+      var text: number
+      redir => text
+        echo 'hello'
+      redir END
+  END
+  CheckDefFailure(lines, 'E1012:')
 enddef
 
 def Test_echo_void()
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index c9ceccf..af80935 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -611,15 +611,49 @@
   # no requirement for spaces before |
   try|echo 0|catch|endtry
 
+  # return in try with finally
+  def ReturnInTry(): number
+    var ret = 4
+    try
+      return ret
+    catch /this/
+      return -1
+    catch /that/
+      return -1
+    finally
+      # changing ret has no effect
+      ret = 7
+    endtry
+    return -2
+  enddef
+  assert_equal(4, ReturnInTry())
+
+  # return in catch with finally
+  def ReturnInCatch(): number
+    var ret = 5
+    try
+      throw 'getout'
+      return -1
+    catch /getout/
+      # ret is evaluated here
+      return ret
+    finally
+      # changing ret later has no effect
+      ret = -3
+    endtry
+    return -2
+  enddef
+  assert_equal(5, ReturnInCatch())
+
   # return in finally after empty catch
   def ReturnInFinally(): number
     try
     finally
-      return 4
+      return 6
     endtry
-    return 2
+    return -1
   enddef
-  assert_equal(4, ReturnInFinally())
+  assert_equal(6, ReturnInFinally())
 
   var lines =<< trim END
       vim9script