vim-patch:8.2.5027: error for missing :endif when an exception was thrown

Problem:    Error for missing :endif when an exception was thrown. (Dani
            Dickstein)
Solution:   Do not give an error when aborting. (closes vim/vim#10490)

bf79a4e48d

Co-authored-by: Bram Moolenaar <Bram@vim.org>

src/nvim/ex_docmd.c

@@ -726,7 +726,7 @@ int do_cmdline(char *cmdline, LineGetter fgetline, void *cookie, int flags)
   if (cstack.cs_idx >= 0) {
     // If a sourced file or executed function ran to its end, report the
     // unclosed conditional.
-    if (!got_int && !did_throw
+    if (!got_int && !did_throw && !aborting()
         && ((getline_equal(fgetline, cookie, getsourceline)
              && !source_finished(fgetline, cookie))
             || (getline_equal(fgetline, cookie, get_func_line)

src/nvim/testdir/test_trycatch.vim

@@ -2221,6 +2221,23 @@ func Test_user_command_throw_in_function_call()
   unlet g:caught
 endfunc
 
+" Test that after reporting an uncaught exception there is no error for a
+" missing :endif
+func Test_after_exception_no_endif_error()
+  function Throw()
+    throw "Failure"
+  endfunction
+
+  function Foo()
+    if 1
+      call Throw()
+    endif
+  endfunction
+  call assert_fails('call Foo()', ['E605:', 'E605:'])
+  delfunc Throw
+  delfunc Foo
+endfunc
+
 " Test for using throw in a called function with following endtry    {{{1
 func Test_user_command_function_call_with_endtry()
   let lines =<< trim END