patch 9.0.0317: when updating the whole screen a popup may not be redrawn

Problem:    When updating the whole screen a popup may not be redrawn.
Solution:   Mark the screen and windows for redraw also when not clearing.
            Also mark popup windows for redraw.
diff --git a/src/proto/popupwin.pro b/src/proto/popupwin.pro
index a12cb3e..4d669ef 100644
--- a/src/proto/popupwin.pro
+++ b/src/proto/popupwin.pro
@@ -15,6 +15,7 @@
 int parse_completepopup(win_T *wp);
 void popup_set_wantpos_cursor(win_T *wp, int width, dict_T *d);
 void popup_set_wantpos_rowcol(win_T *wp, int row, int col);
+void popup_redraw_all(void);
 void f_popup_clear(typval_T *argvars, typval_T *rettv);
 void f_popup_create(typval_T *argvars, typval_T *rettv);
 void f_popup_atcursor(typval_T *argvars, typval_T *rettv);
diff --git a/src/proto/screen.pro b/src/proto/screen.pro
index 81e5e10..2b77537 100644
--- a/src/proto/screen.pro
+++ b/src/proto/screen.pro
@@ -31,6 +31,7 @@
 void screenalloc(int doclear);
 void free_screenlines(void);
 void screenclear(void);
+void redraw_as_cleared(void);
 void line_was_clobbered(int screen_lnum);
 int can_clear(char_u *p);
 void screen_start(void);