commit 6c4bfe4b31e8c5d3c4809536ab6e4835d50f0f67
author Bram Moolenaar <Bram@vim.org> Thu Jul 23 18:26:30 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Thu Jul 23 18:26:30 2020 +0200
tree 11ed390d58bf488b11d865292e0d6f03f72e718a
parent 2d06bfde29bd3a62fc85823d2aa719ef943bd319

patch 8.2.1282: Vim9: crash when using CheckScriptFailure()

Problem:    Vim9: crash when using CheckScriptFailure() in
            Test_vim9script_call_fail_decl().
Solution:   Do not decrement the def_functions len unless the function was
            newly added.

src/testdir/test_vim9_func.vim

diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index ed59721..25c40c8 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -258,7 +258,7 @@
 
 def Test_call_funcref()
   assert_equal(3, g:SomeFunc('abc'))
-  assert_fails('NotAFunc()', 'E117:')
+  assert_fails('NotAFunc()', 'E117:') # comment after call
   assert_fails('g:NotAFunc()', 'E117:')
 
   let lines =<< trim END
@@ -425,9 +425,7 @@
     enddef
     defcompile
   END
-  writefile(lines, 'Xcall_decl.vim')
-  assert_fails('source Xcall_decl.vim', 'E1054:')
-  delete('Xcall_decl.vim')
+  CheckScriptFailure(lines, 'E1054:')
 enddef
 
 def Test_vim9script_call_fail_type()