patch 8.2.0717: Vim9: postponed constant expressions does not scale

Problem:    Vim9: postponed constant expressions does not scale.
Solution:   Add a structure to pass around postponed constants.
diff --git a/src/version.c b/src/version.c
index c8361eb..ba81d68 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    717,
+/**/
     716,
 /**/
     715,