patch 8.1.1880: cannot show extra info for completion in a popup window

Problem:    Cannot show extra info for completion in a popup window.
Solution:   Add the "popup" entry in 'completeopt'.
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_1.dump b/src/testdir/dumps/Test_popupwin_infopopup_1.dump
new file mode 100644
index 0000000..ba5925a
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_1.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|a|w|o|r|d> @15|╔+0#0000001#ffd7ff255|═@15|X| +0#0000000#ffffff0@9
+|~+0#4040ff13&| @23| +0#0000001#e0e0e08|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| |║+0&#ffd7ff255| |w|o|r|d|s| |a|r|e| |c|o@1|l| |║| +0#4040ff13#ffffff0@9
+|~| @23| +0#0000001#ffd7ff255|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |╚|═@15|⇲| +0#4040ff13#ffffff0@9
+|~| @23| +0#0000001#ffd7ff255|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |1| |o|f| |4| +0#0000000&@26
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_2.dump b/src/testdir/dumps/Test_popupwin_infopopup_2.dump
new file mode 100644
index 0000000..059055e
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_2.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|a|n|o|t|h|e|r|w|o|r|d> @37
+|~+0#4040ff13&| @23| +0#0000001#ffd7ff255|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| |╔|═@25|X
+|~+0#4040ff13#ffffff0| @23| +0#0000001#e0e0e08|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |║+0&#ffd7ff255| |o|t|h|e|r| |w|o|r|d|s| |a|r|e| @9|║
+|~+0#4040ff13#ffffff0| @23| +0#0000001#ffd7ff255|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| |║| |c|o@1|l|e|r| |t|h|a|n| |t|h|i|s| |a|n|d| |s|o|m| |║
+|~+0#4040ff13#ffffff0| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |║| |e| |m|o|r|e| |t|e|x|t| @13|║
+|~+0#4040ff13#ffffff0| @45|║+0#0000001#ffd7ff255| |t|o| |m|a|k|e| |w|r|a|p| @12|║
+|~+0#4040ff13#ffffff0| @45|╚+0#0000001#ffd7ff255|═@25|⇲
+|~+0#4040ff13#ffffff0| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |2| |o|f| |4| +0#0000000&@26
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_3.dump b/src/testdir/dumps/Test_popupwin_infopopup_3.dump
new file mode 100644
index 0000000..3295cb2
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_3.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|n|o|i|n|f|o> @42
+|~+0#4040ff13&| @23| +0#0000001#ffd7ff255|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |╔|═@14|X| +0#4040ff13#ffffff0@10
+|~| @23| +0#0000001#e0e0e08|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| |║+0&#ffd7ff255| |n|o| |w|o|r|d|s| |h|e|r|e| |║| +0#4040ff13#ffffff0@10
+|~| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| |╚|═@14|⇲| +0#4040ff13#ffffff0@10
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |m+0#00e0003&|a|t|c|h| |3| |o|f| |4| +0#0000000&@26
diff --git a/src/testdir/dumps/Test_popupwin_infopopup_4.dump b/src/testdir/dumps/Test_popupwin_infopopup_4.dump
new file mode 100644
index 0000000..3a15a9f
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_infopopup_4.dump
@@ -0,0 +1,14 @@
+|t+0&#ffffff0|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| |t|e|x|t| > @39
+|~+0#4040ff13&| @23| +0#0000001#ffd7ff255|w|r|d| @4|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|a|n|o|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|n|o|a|w|r|d| @1|W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @23| +0#0000001#ffd7ff255|t|h|a|t|w|r|d| |W| |e|x|t|r|a| |t|e|x|t| | +0#4040ff13#ffffff0@27
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|-+2#0000000&@1| |U|s|e|r| |d|e|f|i|n|e|d| |c|o|m|p|l|e|t|i|o|n| |(|^|U|^|N|^|P|)| |B+0#e000002&|a|c|k| |a|t| |o|r|i|g|i|n|a|l| +0#0000000&@22
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index fbd32be..5de7255 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -2193,4 +2193,76 @@
   call delete('Xheader.h')
 endfunc
 
+func Test_popupmenu_info()
+  let lines =<< trim END
+      set completeopt+=preview,popup
+      set completefunc=CompleteFuncDict
+
+      func CompleteFuncDict(findstart, base)
+	if a:findstart
+	  if col('.') > 10
+	    return col('.') - 10
+	  endif
+	  return 0
+	endif
+
+	return {
+		\ 'words': [
+		  \ {
+		    \ 'word': 'aword',
+		    \ 'abbr': 'wrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': 'words are cool',
+		    \ 'kind': 'W',
+		    \ 'user_data': 'test'
+		  \ },
+		  \ {
+		    \ 'word': 'anotherword',
+		    \ 'abbr': 'anotwrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': "other words are\ncooler than this and some more text\nto make wrap",
+		    \ 'kind': 'W',
+		    \ 'user_data': 'notest'
+		  \ },
+		  \ {
+		    \ 'word': 'noinfo',
+		    \ 'abbr': 'noawrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': 'no words here',
+		    \ 'kind': 'W',
+		    \ 'user_data': 'notest'
+		  \ },
+		  \ {
+		    \ 'word': 'thatword',
+		    \ 'abbr': 'thatwrd',
+		    \ 'menu': 'extra text',
+		    \ 'info': 'that word is cool',
+		    \ 'kind': 'W',
+		    \ 'user_data': 'notest'
+		  \ },
+		\ ]
+	      \ }
+      endfunc
+      call setline(1, 'text text text text text text text ')
+  END
+  call writefile(lines, 'XtestInfoPopup')
+  let buf = RunVimInTerminal('-S XtestInfoPopup', #{rows: 14})
+  call term_wait(buf, 50)
+
+  call term_sendkeys(buf, "A\<C-X>\<C-U>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_1', {})
+
+  call term_sendkeys(buf, "\<C-N>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_2', {})
+
+  call term_sendkeys(buf, "\<C-N>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_3', {})
+
+  call term_sendkeys(buf, "\<C-N>\<C-N>")
+  call VerifyScreenDump(buf, 'Test_popupwin_infopopup_4', {})
+
+  call StopVimInTerminal(buf)
+  call delete('XtestInfoPopup')
+endfunc
+
 " vim: shiftwidth=2 sts=2