feat(options): add 'eventignorewin' (#32152)

vim-patch:partial:9.1.1084: Unable to persistently ignore events in a window and its buffers

Problem:  Unable to persistently ignore events in a window and its buffers.
Solution: Add 'eventignorewin' option to ignore events in a window and buffer
          (Luuk van Baal)

Add the window-local 'eventignorewin' option that is analogous to
'eventignore', but applies to a certain window and its buffers. Identify
events that should be allowed in 'eventignorewin', adapt "auto_event"
and "event_tab" to encode this information. Window context is not passed
onto apply_autocmds_group(), and when to ignore an event is a bit
ambiguous when "buf" is not "curbuf", rather than a large refactor, only
ignore an event when all windows into "buf" are ignoring the event.

b7147f8236

vim-patch:9.1.1102: tests: Test_WinScrolled_Resized_eiw() uses wrong filename

Problem:  tests: Test_WinScrolled_Resized_eiw() uses wrong filename
          (Luuk van Baal, after v9.1.1084)
Solution: Rename the filename to something more unique

bfc7719e48

src/nvim/options.lua

@@ -2627,6 +2627,23 @@ local options = {
       type = 'string',
       varname = 'p_ei',
     },
+    {
+      abbreviation = 'eiw',
+      cb = 'did_set_eventignore',
+      defaults = '',
+      deny_duplicates = true,
+      desc = [=[
+        Similar to 'eventignore' but applies to a particular window and its
+        buffers, for which window and buffer related autocommands can be
+        ignored indefinitely without affecting the global 'eventignore'.
+      ]=],
+      expand_cb = 'expand_set_eventignore',
+      full_name = 'eventignorewin',
+      list = 'onecomma',
+      scope = { 'win' },
+      short_desc = N_('autocommand events that are ignored in a window'),
+      type = 'string',
+    },
     {
       abbreviation = 'et',
       defaults = false,