vim-patch:8.2.0382: some tests fail when run under valgrind (#21936)

Problem:    Some tests fail when run under valgrind.
Solution:   Increase timeouts.

353c351bd2

Cherry-pick Test_pum_with_preview_win() from patch 8.2.0011.

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

src/nvim/popupmenu.c

@@ -824,7 +824,7 @@ static bool pum_set_selected(int n, int repeat)
             // When the preview window was resized we need to
             // update the view on the buffer.  Only go back to
             // the window when needed, otherwise it will always be
-            // redraw.
+            // redrawn.
             if (resized) {
               no_u_sync++;
               win_enter(curwin_save, true);

src/nvim/testdir/test_autocmd.vim

@@ -2919,7 +2919,7 @@ func Test_autocmd_CmdWinEnter()
   call term_sendkeys(buf, "q:")
   call term_wait(buf)
   call term_sendkeys(buf, ":echo b:dummy_var\<cr>")
-  call WaitForAssert({-> assert_match('^This is a dummy', term_getline(buf, 6))}, 1000)
+  call WaitForAssert({-> assert_match('^This is a dummy', term_getline(buf, 6))}, 2000)
   call term_sendkeys(buf, ":echo &buftype\<cr>")
   call WaitForAssert({-> assert_notmatch('^nofile', term_getline(buf, 6))}, 1000)
   call term_sendkeys(buf, ":echo winnr\<cr>")

src/nvim/testdir/test_debugger.vim

@@ -36,7 +36,7 @@ endfunc
 " If the expected output argument is supplied, then check for it.
 func RunDbgCmd(buf, cmd, ...)
   call term_sendkeys(a:buf, a:cmd . "\r")
-  call term_wait(a:buf)
+  call term_wait(a:buf, 20)
 
   if a:0 != 0
     let options = #{match: 'equal'}

src/nvim/testdir/test_ins_complete.vim

@@ -581,6 +581,33 @@ func Test_pum_with_folds_two_tabs()
   call delete('Xpumscript')
 endfunc
 
+func Test_pum_with_preview_win()
+  CheckScreendump
+
+  let lines =<< trim END
+      funct Omni_test(findstart, base)
+	if a:findstart
+	  return col(".") - 1
+	endif
+	return [#{word: "one", info: "1info"}, #{word: "two", info: "2info"}, #{word: "three", info: "3info"}]
+      endfunc
+      set omnifunc=Omni_test
+      set completeopt+=longest
+  END
+
+  call writefile(lines, 'Xpreviewscript')
+  let buf = RunVimInTerminal('-S Xpreviewscript', #{rows: 12})
+  call term_wait(buf, 100)
+  call term_sendkeys(buf, "Gi\<C-X>\<C-O>")
+  call term_wait(buf, 200)
+  call term_sendkeys(buf, "\<C-N>")
+  call VerifyScreenDump(buf, 'Test_pum_with_preview_win', {})
+
+  call term_sendkeys(buf, "\<Esc>")
+  call StopVimInTerminal(buf)
+  call delete('Xpreviewscript')
+endfunc
+
 " Test for inserting the tag search pattern in insert mode
 func Test_ins_compl_tag_sft()
   call writefile([