patch 8.2.3692: Vim9: cannot use :func inside a :def function
Problem: Vim9: cannot use :func inside a :def function.
Solution: Make it work.
diff --git a/src/structs.h b/src/structs.h
index bef7062..48a531b 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1699,6 +1699,7 @@
#define FC_VIM9 0x400 // defined in vim9 script file
#define FC_CFUNC 0x800 // defined as Lua C func
#define FC_COPY 0x1000 // copy of another function by copy_func()
+#define FC_LAMBDA 0x2000 // one line "return {expr}"
#define MAX_FUNC_ARGS 20 // maximum number of function arguments
#define VAR_SHORT_LEN 20 // short variable name length