refactor/single-include: memline_defs.h #6465

src/nvim/memfile_defs.h

@@ -3,8 +3,10 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include <stdlib.h> // for size_t
 
 #include "nvim/types.h"
+#include "nvim/pos.h" // for linenr_T
 
 /// A block number.
 ///