Delete structs.h by spliting it and moving code to other headers

Here's the list of squashed commits (for more info, see PR #378).

 - Define guicolor_T as a typedef in syntax.h
 - Move a big chunk of code from structs.h to buffer_defs.h
 - Move aco_save_T from structs.h to fileio.h
 - Move option_table_T from structs.h to hardcopy.h

	Aditionally:

	 - Move the printer_opts global to hardcopy.c
	 - Delete structs.h. Include buffer_defs.h where structs.h was included
	   before.
	 - Add header guards to option_defs.h

 - Put mark types and constants in new mark_defs.h
 - Move undo structs to undo_defs.h
 - Move memfile structs to new memfile_defs.h
 - Move expand_T and cmdmod_T to ex_cmds_defs.h
 - Move memline_T to memline_defs.h
 - Move many defs and types to ex_eval.h
 - Move syntax related types to syntax_defs.h
 - Move struct memfile to memfile_defs.h
 - struct buffblock and struct buffheader moved back to buffer_defs.h
 - Move some datatypes to hashtab.h and eval_defs.h
 - Move the buffer_defs.h include and TODOs for remaining unrelated types in buffer_defs.h

1 files changed, 1 insertions, 8 deletions

diff --git a/src/vim.h b/src/vim.h
index a12a7786bd..247984dd2f 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1228,14 +1228,6 @@ int vim_memcmp(void *, void *, size_t);
 
 typedef struct timeval proftime_T;
 
-/* Include option_defs.h before structs.h, because the number of window-local and
- * buffer-local options is used there. */
-#include "option_defs.h"         /* options and default values */
-
-/* Note that gui.h is included by structs.h */
-
-#include "structs.h"        /* file that defines many structures */
-
 /* Values for "do_profiling". */
 #define PROF_NONE       0       /* profiling not started */
 #define PROF_YES        1       /* profiling busy */
@@ -1380,6 +1372,7 @@ typedef struct timeval proftime_T;
 typedef int VimClipboard;       /* This is required for the prototypes. */
 
 
+#include "buffer_defs.h"         /* buffer and windows */
 #include "ex_cmds_defs.h"        /* Ex command defines */
 #include "proto.h"          /* function prototypes */