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, 70 insertions, 0 deletions

diff --git a/src/ui.h b/src/ui.h
new file mode 100644
index 0000000000..bcd6afd426
--- /dev/null
+++ b/src/ui.h
@@ -0,0 +1,70 @@
+#ifndef NEOVIM_UI_H
+#define NEOVIM_UI_H
+/* ui.c */
+void ui_write __ARGS((char_u *s, int len));
+void ui_inchar_undo __ARGS((char_u *s, int len));
+int ui_inchar __ARGS((char_u *buf, int maxlen, long wtime, int tb_change_cnt));
+int ui_char_avail __ARGS((void));
+void ui_delay __ARGS((long msec, int ignoreinput));
+void ui_suspend __ARGS((void));
+void suspend_shell __ARGS((void));
+int ui_get_shellsize __ARGS((void));
+void ui_set_shellsize __ARGS((int mustset));
+void ui_new_shellsize __ARGS((void));
+void ui_breakcheck __ARGS((void));
+void clip_init __ARGS((int can_use));
+void clip_update_selection __ARGS((VimClipboard *clip));
+void clip_own_selection __ARGS((VimClipboard *cbd));
+void clip_lose_selection __ARGS((VimClipboard *cbd));
+void clip_auto_select __ARGS((void));
+int clip_isautosel_star __ARGS((void));
+int clip_isautosel_plus __ARGS((void));
+void clip_modeless __ARGS((int button, int is_click, int is_drag));
+void clip_start_selection __ARGS((int col, int row, int repeated_click));
+void clip_process_selection __ARGS((int button, int col, int row,
+                                    int_u repeated_click));
+void clip_may_redraw_selection __ARGS((int row, int col, int len));
+void clip_clear_selection __ARGS((VimClipboard *cbd));
+void clip_may_clear_selection __ARGS((int row1, int row2));
+void clip_scroll_selection __ARGS((int rows));
+void clip_copy_modeless_selection __ARGS((int both));
+int clip_gen_own_selection __ARGS((VimClipboard *cbd));
+void clip_gen_lose_selection __ARGS((VimClipboard *cbd));
+void clip_gen_set_selection __ARGS((VimClipboard *cbd));
+void clip_gen_request_selection __ARGS((VimClipboard *cbd));
+int clip_gen_owner_exists __ARGS((VimClipboard *cbd));
+int vim_is_input_buf_full __ARGS((void));
+int vim_is_input_buf_empty __ARGS((void));
+int vim_free_in_input_buf __ARGS((void));
+int vim_used_in_input_buf __ARGS((void));
+char_u *get_input_buf __ARGS((void));
+void set_input_buf __ARGS((char_u *p));
+void add_to_input_buf __ARGS((char_u *s, int len));
+void add_to_input_buf_csi __ARGS((char_u *str, int len));
+void push_raw_key __ARGS((char_u *s, int len));
+void trash_input_buf __ARGS((void));
+int read_from_input_buf __ARGS((char_u *buf, long maxlen));
+void fill_input_buf __ARGS((int exit_on_error));
+void read_error_exit __ARGS((void));
+void ui_cursor_shape __ARGS((void));
+int check_col __ARGS((int col));
+int check_row __ARGS((int row));
+void open_app_context __ARGS((void));
+void x11_setup_atoms __ARGS((Display *dpy));
+void x11_setup_selection __ARGS((Widget w));
+void clip_x11_request_selection __ARGS((Widget myShell, Display *dpy,
+                                        VimClipboard *cbd));
+void clip_x11_lose_selection __ARGS((Widget myShell, VimClipboard *cbd));
+int clip_x11_own_selection __ARGS((Widget myShell, VimClipboard *cbd));
+void clip_x11_set_selection __ARGS((VimClipboard *cbd));
+int clip_x11_owner_exists __ARGS((VimClipboard *cbd));
+void yank_cut_buffer0 __ARGS((Display *dpy, VimClipboard *cbd));
+int jump_to_mouse __ARGS((int flags, int *inclusive, int which_button));
+int mouse_comp_pos __ARGS((win_T *win, int *rowp, int *colp, linenr_T *lnump));
+win_T *mouse_find_win __ARGS((int *rowp, int *colp));
+int get_fpos_of_mouse __ARGS((pos_T *mpos));
+int vcol2col __ARGS((win_T *wp, linenr_T lnum, int vcol));
+void ui_focus_change __ARGS((int in_focus));
+void im_save_status __ARGS((long *psave));
+/* vim: set ft=c : */
+#endif /* NEOVIM_UI_H */