Merge #5928 'New event: DirChanged'

src/nvim/auevents.lua

@@ -28,6 +28,7 @@ return {
     'CursorHoldI',            -- idem, in Insert mode
     'CursorMoved',            -- cursor was moved
     'CursorMovedI',           -- cursor was moved in Insert mode
+    'DirChanged',             -- directory changed
     'EncodingChanged',        -- after changing the 'encoding' option
     'FileAppendCmd',          -- append to a file using command
     'FileAppendPost',         -- after appending to a file
@@ -102,6 +103,7 @@ return {
   -- List of neovim-specific events or aliases for the purpose of generating 
   -- syntax file
   neovim_specific = {
+    DirChanged=true,
     TabClosed=true,
     TabNew=true,
     TabNewEntered=true,