patch 8.2.1679: Vim9: ":*" is not recognized as a range

Problem:    Vim9: ":*" is not recognized as a range.
Solution:   Move recognizing "*" into skip_range(). (closes #6838)
diff --git a/src/cmdexpand.c b/src/cmdexpand.c
index 3ef3e1d..e7cf819 100644
--- a/src/cmdexpand.c
+++ b/src/cmdexpand.c
@@ -992,7 +992,7 @@
     }
 
     // 3. Skip over the range to find the command.
-    cmd = skip_range(cmd, &xp->xp_context);
+    cmd = skip_range(cmd, TRUE, &xp->xp_context);
     xp->xp_pattern = cmd;
     if (*cmd == NUL)
 	return NULL;