refactor/single-include (#6586)

src/nvim/CMakeLists.txt

@@ -432,13 +432,9 @@ set(NO_SINGLE_CHECK_HEADERS
   if_cscope_defs.h
   misc2.h
   msgpack_rpc/server.h
-  option.h
   os/shell.h
   os_unix.h
   os/win_defs.h
-  popupmnu.h
-  quickfix.h
-  regexp.h
   regexp_defs.h
   sha256.h
   sign_defs.h

src/nvim/popupmnu.h

@@ -1,6 +1,8 @@
 #ifndef NVIM_POPUPMNU_H
 #define NVIM_POPUPMNU_H
 
+#include "nvim/types.h"
+
 /// Used for popup menu items.
 typedef struct {
   char_u *pum_text;        // main menu text

src/nvim/quickfix.h

@@ -1,6 +1,9 @@
 #ifndef NVIM_QUICKFIX_H
 #define NVIM_QUICKFIX_H
 
+#include "nvim/types.h"
+#include "nvim/ex_cmds_defs.h"
+
 /* flags for skip_vimgrep_pat() */
 #define VGR_GLOBAL      1
 #define VGR_NOJUMP      2

src/nvim/regexp.h

@@ -1,6 +1,10 @@
 #ifndef NVIM_REGEXP_H
 #define NVIM_REGEXP_H
 
+#include "nvim/types.h"
+#include "nvim/buffer_defs.h"
+#include "nvim/regexp_defs.h"
+
 /* Second argument for vim_regcomp(). */
 #define RE_MAGIC        1       /* 'magic' option */
 #define RE_STRING       2       /* match in string instead of buffer text */