vim-patch:8.1.0362: cannot get the script line number when executing a function

Problem:    Cannot get the script line number when executing a function.
Solution:   Store the line number besides the script ID. (Ozaki Kiichi,
            closes vim/vim#3362)  Also display the line number with ":verbose set".
f29c1c6aa3

src/nvim/macros.h

@@ -9,6 +9,7 @@
 #else
 # ifndef INIT
 #  define INIT(...) __VA_ARGS__
+#  define COMMA ,
 # endif
 #endif