patch 8.2.3189: Vim9: error when using "try|"

Problem:    Vim9: error when using "try|".
Solution:   Allow for "|" right after a command.

src/testdir/test_vim9_script.vim

@@ -581,6 +581,9 @@ def Test_try_catch_throw()
   endfor
   assert_equal(4, counter)
 
+  # no requirement for spaces before |
+  try|echo 0|catch|endtry
+
   # return in finally after empty catch
   def ReturnInFinally(): number
     try