patch 9.0.0370: cleaning up afterwards can make a function messy
Problem: Cleaning up afterwards can make a function messy.
Solution: Add the :defer command.
diff --git a/src/proto/userfunc.pro b/src/proto/userfunc.pro
index 427d47b..3e417dd 100644
--- a/src/proto/userfunc.pro
+++ b/src/proto/userfunc.pro
@@ -58,6 +58,7 @@
void func_ref(char_u *name);
void func_ptr_ref(ufunc_T *fp);
void ex_return(exarg_T *eap);
+void handle_defer(void);
void ex_call(exarg_T *eap);
int do_return(exarg_T *eap, int reanimate, int is_cmd, void *rettv);
void discard_pending_return(void *rettv);