fixup! genvimvim.lua: fix matching functions

.ci/common/test.sh

@@ -83,8 +83,9 @@ install_nvim() {
     exit 1
   }
 
+  local genvimsynf=syntax/vim/generated.vim
   # Check that all runtime files were installed
-  for file in doc/tags syntax/vim/generated.vim $(
+  for file in doc/tags $genvimsynf $(
     cd runtime ; git ls-files | grep -e '.vim$' -e '.ps$' -e '.dict$' -e '.py$' -e '.tutor$'
   ) ; do
     if ! test -e "${INSTALL_PREFIX}/share/nvim/runtime/$file" ; then
@@ -93,6 +94,13 @@ install_nvim() {
     fi
   done
 
+  # Check that generated syntax file has function names, #5060.
+  local gpat='syn keyword vimFuncName .*eval'
+  if ! grep -q "$gpat" $genvimsynf ; then
+    echo "It appears that $genvimsynf does not contain $gpat."
+    exit 1
+  fi
+
   for file in $(
     cd runtime ; git ls-files | grep -e '.awk$' -e '.sh$' -e '.bat$'
   ) ; do

scripts/genvimvim.lua

@@ -124,12 +124,13 @@ for line in eval_fd:lines() do
       break
     end
     local func_name = line:match('^  { "([%w_]+)",')
-    assert(func_name, 'Did not find a function in line: '..line)
+    if func_name then
       if lld.line_length > 850 then
         w('\n' .. vimfun_start)
       end
       w(' ' .. func_name)
     end
+  end
 end
 eval_fd:close()