patch 8.2.2314: Vim9: returning zero takes two instructions
Problem: Vim9: returning zero takes two instructions.
Solution: Add ISN_RETURN_ZERO.
diff --git a/src/vim9.h b/src/vim9.h
index 49103ba..440de27 100644
--- a/src/vim9.h
+++ b/src/vim9.h
@@ -84,6 +84,7 @@
ISN_PCALL, // call partial, use isn_arg.pfunc
ISN_PCALL_END, // cleanup after ISN_PCALL with cpf_top set
ISN_RETURN, // return, result is on top of stack
+ ISN_RETURN_ZERO, // Push zero, then return
ISN_FUNCREF, // push a function ref to dfunc isn_arg.funcref
ISN_NEWFUNC, // create a global function from a lambda function
ISN_DEF, // list functions