patch 8.1.2373: cannot build with +popupwin but without +quickfix

Problem:    Cannot build with +popupwin but without +quickfix. (John Marriott)
Solution:   Adjust #ifdefs.
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index 9ecd245..6bfc6dd 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -2700,6 +2700,7 @@
 
 func Test_previewpopup()
   CheckScreendump
+  CheckFeature quickfix
 
   call writefile([
         \ "!_TAG_FILE_ENCODING\tutf-8\t//",
@@ -2871,6 +2872,7 @@
 
 func Test_popupmenu_info_border()
   CheckScreendump
+  CheckFeature quickfix
 
   let lines = Get_popupmenu_lines()
   call add(lines, 'set completepopup=height:4,highlight:InfoPopup')
@@ -2908,6 +2910,7 @@
 
 func Test_popupmenu_info_noborder()
   CheckScreendump
+  CheckFeature quickfix
 
   let lines = Get_popupmenu_lines()
   call add(lines, 'set completepopup=height:4,border:off')
@@ -2925,6 +2928,7 @@
 
 func Test_popupmenu_info_align_menu()
   CheckScreendump
+  CheckFeature quickfix
 
   let lines = Get_popupmenu_lines()
   call add(lines, 'set completepopup=height:4,border:off,align:menu')
@@ -2955,6 +2959,7 @@
 
 func Test_popupmenu_info_hidden()
   CheckScreendump
+  CheckFeature quickfix
 
   let lines = Get_popupmenu_lines()
   call add(lines, 'call InfoHidden()')