patch 8.2.0191: cannot put a terminal in a popup window

Problem:    Cannot put a terminal in a popup window.
Solution:   Allow opening a terminal in a popup window.  It will always have
            keyboard focus until closed.
diff --git a/src/macros.h b/src/macros.h
index 6631d4d..ce226e3 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -345,8 +345,10 @@
 // Give an error in curwin is a popup window and evaluate to TRUE.
 #ifdef FEAT_PROP_POPUP
 # define ERROR_IF_POPUP_WINDOW error_if_popup_window()
+# define ERROR_IF_TERM_POPUP_WINDOW error_if_term_popup_window()
 #else
 # define ERROR_IF_POPUP_WINDOW 0
+# define ERROR_IF_TERM_POPUP_WINDOW 0
 #endif