patch 8.2.3307: Vim9: :echoconsole cannot access local variables

Problem:    Vim9: :echoconsole cannot access local variables.
Solution:   Handle like other :echo commands. (closes #8708)
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index 93dce83..2c5e3e7 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -2493,10 +2493,11 @@
 enddef
 
 def Test_echoerr_cmd()
+  var local = 'local'
   try
-    echoerr 'something' 'wrong' # comment
+    echoerr 'something' local 'wrong' # comment
   catch
-    assert_match('something wrong', v:exception)
+    assert_match('something local wrong', v:exception)
   endtry
 enddef
 
@@ -2515,6 +2516,12 @@
   CheckScriptSuccess(lines)
 enddef
 
+def Test_echoconsole_cmd()
+  var local = 'local'
+  echoconsole 'something' local # comment
+  # output goes anywhere
+enddef
+
 def Test_for_outside_of_function()
   var lines =<< trim END
     vim9script