Removes 'proto' dir

See #137 for the issue.

Every header in the proto directory was:

* Given include guards in the form

    #ifndef NEOVIM_FILENAME_H
    #define NEOVIM_FILENAME_H
        ...
    #endif /* NEOVIM_FILENAM_H */

* Renamed from *.pro -> *.h
* Moved from src/proto/ to src/

This would have caused conficts with some existing headers in src/;
rather than merge these conflicts now (which is a whole other can of
worms involving multiple and conditional inclusion), any header in src/
with a conflicting name was renamed from *.h -> *_defs.h (which may or
may not actually describe its purpose, the change is purely a
namespacing issue).

Once all of these changes were made a script was developed to determine
what #includes needed to be added to each source file to describe its
dependencies and allow it to compile; because the script is so short
and I'll just list it here:

    #! /bin/bash

    cd $(dirname $0)

    # Scrapes `make` output for provided error messages and outputs #includes
    # needed to resolve them.
    #   $1 : part of the clang error message between filename and identifier
    list_missing_includes() {
        for file_missing_pair in $(CC=clang make 2>&1 >/dev/null | sed -n "s/\/\(.*\.[hc]\).*$1.*'\(.*\)'.*/\1:\2/p"); do
            fields=(${file_missing_pair//:/ })
            source_file=${fields[0]}
            missing_func=${fields[1]}
            # Try to find the declaration of the missing function.
            echo $(basename $source_file) \
                \#include \"$(grep -r "\b$missing_func __ARGS" | sed -n "s/.*\/\(.*\)\:.*/\1/p")\"
        # Remove duplicates
        done | sort | uniq
    }

    echo "Finding missing function prototypes..."
    list_missing_includes "implicit declaration of function"
    echo "Finding missing identifier declarations..."
    list_missing_includes "use of undeclared identifier"

Each list of required headers was added by hand in the following format:

    #include "vim.h"
    #include "*_defs.h"
    #include "filename.h"
    /* All other includes in same module here, in alphabetical order. */
    /* All includes from other modules (e.g. "os/*.h") here in alphabetical
     * order. */

1 files changed, 44 insertions, 0 deletions

diff --git a/src/memline.h b/src/memline.h
new file mode 100644
index 0000000000..7a18633d25
--- /dev/null
+++ b/src/memline.h
@@ -0,0 +1,44 @@
+#ifndef NEOVIM_MEMLINE_H
+#define NEOVIM_MEMLINE_H
+/* memline.c */
+int ml_open __ARGS((buf_T *buf));
+void ml_set_crypt_key __ARGS((buf_T *buf, char_u *old_key, int old_cm));
+void ml_setname __ARGS((buf_T *buf));
+void ml_open_files __ARGS((void));
+void ml_open_file __ARGS((buf_T *buf));
+void check_need_swap __ARGS((int newfile));
+void ml_close __ARGS((buf_T *buf, int del_file));
+void ml_close_all __ARGS((int del_file));
+void ml_close_notmod __ARGS((void));
+void ml_timestamp __ARGS((buf_T *buf));
+void ml_recover __ARGS((void));
+int recover_names __ARGS((char_u *fname, int list, int nr, char_u **fname_out));
+void ml_sync_all __ARGS((int check_file, int check_char));
+void ml_preserve __ARGS((buf_T *buf, int message));
+char_u *ml_get __ARGS((linenr_T lnum));
+char_u *ml_get_pos __ARGS((pos_T *pos));
+char_u *ml_get_curline __ARGS((void));
+char_u *ml_get_cursor __ARGS((void));
+char_u *ml_get_buf __ARGS((buf_T *buf, linenr_T lnum, int will_change));
+int ml_line_alloced __ARGS((void));
+int ml_append __ARGS((linenr_T lnum, char_u *line, colnr_T len, int newfile));
+int ml_append_buf __ARGS((buf_T *buf, linenr_T lnum, char_u *line, colnr_T len,
+                          int newfile));
+int ml_replace __ARGS((linenr_T lnum, char_u *line, int copy));
+int ml_delete __ARGS((linenr_T lnum, int message));
+void ml_setmarked __ARGS((linenr_T lnum));
+linenr_T ml_firstmarked __ARGS((void));
+void ml_clearmarked __ARGS((void));
+int resolve_symlink __ARGS((char_u *fname, char_u *buf));
+char_u *makeswapname __ARGS((char_u *fname, char_u *ffname, buf_T *buf,
+                             char_u *dir_name));
+char_u *get_file_in_dir __ARGS((char_u *fname, char_u *dname));
+void ml_setflags __ARGS((buf_T *buf));
+char_u *ml_encrypt_data __ARGS((memfile_T *mfp, char_u *data, off_t offset,
+                                unsigned size));
+void ml_decrypt_data __ARGS((memfile_T *mfp, char_u *data, off_t offset,
+                             unsigned size));
+long ml_find_line_or_offset __ARGS((buf_T *buf, linenr_T lnum, long *offp));
+void goto_byte __ARGS((long cnt));
+/* vim: set ft=c : */
+#endif /* NEOVIM_MEMLINE_H */