patch 8.2.0509: various code is not properly tested.

Problem:    various code is not properly tested.
Solution:   Add more tests. (Yegappan Lakshmanan, closes #5871)
diff --git a/src/testdir/test_trycatch.vim b/src/testdir/test_trycatch.vim
index b15f812..68ab7fc 100644
--- a/src/testdir/test_trycatch.vim
+++ b/src/testdir/test_trycatch.vim
@@ -2012,9 +2012,7 @@
 " Test for verbose messages with :try :catch, and :finally                 {{{1
 func Test_try_catch_verbose()
   " This test works only when the language is English
-  if v:lang != "C" && v:lang !~ '^[Ee]n'
-    return
-  endif
+  CheckEnglish
 
   set verbose=14