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, 153 insertions, 0 deletions

diff --git a/src/eval.h b/src/eval.h
new file mode 100644
index 0000000000..d63ea3dd8b
--- /dev/null
+++ b/src/eval.h
@@ -0,0 +1,153 @@
+#ifndef NEOVIM_EVAL_H
+#define NEOVIM_EVAL_H
+/* eval.c */
+void eval_init __ARGS((void));
+void eval_clear __ARGS((void));
+char_u *func_name __ARGS((void *cookie));
+linenr_T *func_breakpoint __ARGS((void *cookie));
+int *func_dbg_tick __ARGS((void *cookie));
+int func_level __ARGS((void *cookie));
+int current_func_returned __ARGS((void));
+void set_internal_string_var __ARGS((char_u *name, char_u *value));
+int var_redir_start __ARGS((char_u *name, int append));
+void var_redir_str __ARGS((char_u *value, int value_len));
+void var_redir_stop __ARGS((void));
+int eval_charconvert __ARGS((char_u *enc_from, char_u *enc_to, char_u *
+                             fname_from,
+                             char_u *fname_to));
+int eval_printexpr __ARGS((char_u *fname, char_u *args));
+void eval_diff __ARGS((char_u *origfile, char_u *newfile, char_u *outfile));
+void eval_patch __ARGS((char_u *origfile, char_u *difffile, char_u *outfile));
+int eval_to_bool __ARGS((char_u *arg, int *error, char_u **nextcmd, int skip));
+char_u *eval_to_string_skip __ARGS((char_u *arg, char_u **nextcmd, int skip));
+int skip_expr __ARGS((char_u **pp));
+char_u *eval_to_string __ARGS((char_u *arg, char_u **nextcmd, int convert));
+char_u *eval_to_string_safe __ARGS((char_u *arg, char_u **nextcmd,
+                                    int use_sandbox));
+int eval_to_number __ARGS((char_u *expr));
+list_T *eval_spell_expr __ARGS((char_u *badword, char_u *expr));
+int get_spellword __ARGS((list_T *list, char_u **pp));
+typval_T *eval_expr __ARGS((char_u *arg, char_u **nextcmd));
+int call_vim_function __ARGS((char_u *func, int argc, char_u **argv, int safe,
+                              int str_arg_only,
+                              typval_T *rettv));
+long call_func_retnr __ARGS((char_u *func, int argc, char_u **argv, int safe));
+void *call_func_retstr __ARGS((char_u *func, int argc, char_u **argv, int safe));
+void *call_func_retlist __ARGS((char_u *func, int argc, char_u **argv, int safe));
+void *save_funccal __ARGS((void));
+void restore_funccal __ARGS((void *vfc));
+void prof_child_enter __ARGS((proftime_T *tm));
+void prof_child_exit __ARGS((proftime_T *tm));
+int eval_foldexpr __ARGS((char_u *arg, int *cp));
+void ex_let __ARGS((exarg_T *eap));
+void list_add_watch __ARGS((list_T *l, listwatch_T *lw));
+void list_rem_watch __ARGS((list_T *l, listwatch_T *lwrem));
+void *eval_for_line __ARGS((char_u *arg, int *errp, char_u **nextcmdp, int skip));
+int next_for_item __ARGS((void *fi_void, char_u *arg));
+void free_for_info __ARGS((void *fi_void));
+void set_context_for_expression __ARGS((expand_T *xp, char_u *arg,
+                                        cmdidx_T cmdidx));
+void ex_call __ARGS((exarg_T *eap));
+void ex_unlet __ARGS((exarg_T *eap));
+void ex_lockvar __ARGS((exarg_T *eap));
+int do_unlet __ARGS((char_u *name, int forceit));
+void del_menutrans_vars __ARGS((void));
+char_u *get_user_var_name __ARGS((expand_T *xp, int idx));
+list_T *list_alloc __ARGS((void));
+void list_unref __ARGS((list_T *l));
+void list_free __ARGS((list_T *l, int recurse));
+listitem_T *listitem_alloc __ARGS((void));
+void listitem_free __ARGS((listitem_T *item));
+void listitem_remove __ARGS((list_T *l, listitem_T *item));
+dictitem_T *dict_lookup __ARGS((hashitem_T *hi));
+listitem_T *list_find __ARGS((list_T *l, long n));
+char_u *list_find_str __ARGS((list_T *l, long idx));
+void list_append __ARGS((list_T *l, listitem_T *item));
+int list_append_tv __ARGS((list_T *l, typval_T *tv));
+int list_append_dict __ARGS((list_T *list, dict_T *dict));
+int list_append_string __ARGS((list_T *l, char_u *str, int len));
+int list_insert_tv __ARGS((list_T *l, typval_T *tv, listitem_T *item));
+void list_remove __ARGS((list_T *l, listitem_T *item, listitem_T *item2));
+void list_insert __ARGS((list_T *l, listitem_T *ni, listitem_T *item));
+int garbage_collect __ARGS((void));
+void set_ref_in_ht __ARGS((hashtab_T *ht, int copyID));
+void set_ref_in_list __ARGS((list_T *l, int copyID));
+void set_ref_in_item __ARGS((typval_T *tv, int copyID));
+dict_T *dict_alloc __ARGS((void));
+void dict_unref __ARGS((dict_T *d));
+void dict_free __ARGS((dict_T *d, int recurse));
+dictitem_T *dictitem_alloc __ARGS((char_u *key));
+void dictitem_free __ARGS((dictitem_T *item));
+int dict_add __ARGS((dict_T *d, dictitem_T *item));
+int dict_add_nr_str __ARGS((dict_T *d, char *key, long nr, char_u *str));
+int dict_add_list __ARGS((dict_T *d, char *key, list_T *list));
+dictitem_T *dict_find __ARGS((dict_T *d, char_u *key, int len));
+char_u *get_dict_string __ARGS((dict_T *d, char_u *key, int save));
+long get_dict_number __ARGS((dict_T *d, char_u *key));
+char_u *get_function_name __ARGS((expand_T *xp, int idx));
+char_u *get_expr_name __ARGS((expand_T *xp, int idx));
+int func_call __ARGS((char_u *name, typval_T *args, dict_T *selfdict,
+                      typval_T *rettv));
+void dict_extend __ARGS((dict_T *d1, dict_T *d2, char_u *action));
+void mzscheme_call_vim __ARGS((char_u *name, typval_T *args, typval_T *rettv));
+float_T vim_round __ARGS((float_T f));
+long do_searchpair __ARGS((char_u *spat, char_u *mpat, char_u *epat, int dir,
+                           char_u *skip, int flags, pos_T *match_pos,
+                           linenr_T lnum_stop,
+                           long time_limit));
+void set_vim_var_nr __ARGS((int idx, long val));
+long get_vim_var_nr __ARGS((int idx));
+char_u *get_vim_var_str __ARGS((int idx));
+list_T *get_vim_var_list __ARGS((int idx));
+void set_vim_var_char __ARGS((int c));
+void set_vcount __ARGS((long count, long count1, int set_prevcount));
+void set_vim_var_string __ARGS((int idx, char_u *val, int len));
+void set_vim_var_list __ARGS((int idx, list_T *val));
+void set_reg_var __ARGS((int c));
+char_u *v_exception __ARGS((char_u *oldval));
+char_u *v_throwpoint __ARGS((char_u *oldval));
+char_u *set_cmdarg __ARGS((exarg_T *eap, char_u *oldarg));
+void free_tv __ARGS((typval_T *varp));
+void clear_tv __ARGS((typval_T *varp));
+long get_tv_number_chk __ARGS((typval_T *varp, int *denote));
+char_u *get_tv_string_chk __ARGS((typval_T *varp));
+char_u *get_var_value __ARGS((char_u *name));
+void new_script_vars __ARGS((scid_T id));
+void init_var_dict __ARGS((dict_T *dict, dictitem_T *dict_var, int scope));
+void unref_var_dict __ARGS((dict_T *dict));
+void vars_clear __ARGS((hashtab_T *ht));
+void copy_tv __ARGS((typval_T *from, typval_T *to));
+void ex_echo __ARGS((exarg_T *eap));
+void ex_echohl __ARGS((exarg_T *eap));
+void ex_execute __ARGS((exarg_T *eap));
+void ex_function __ARGS((exarg_T *eap));
+void free_all_functions __ARGS((void));
+int translated_function_exists __ARGS((char_u *name));
+char_u *get_expanded_name __ARGS((char_u *name, int check));
+void func_dump_profile __ARGS((FILE *fd));
+char_u *get_user_func_name __ARGS((expand_T *xp, int idx));
+void ex_delfunction __ARGS((exarg_T *eap));
+void func_unref __ARGS((char_u *name));
+void func_ref __ARGS((char_u *name));
+void ex_return __ARGS((exarg_T *eap));
+int do_return __ARGS((exarg_T *eap, int reanimate, int is_cmd, void *rettv));
+void discard_pending_return __ARGS((void *rettv));
+char_u *get_return_cmd __ARGS((void *rettv));
+char_u *get_func_line __ARGS((int c, void *cookie, int indent));
+void func_line_start __ARGS((void *cookie));
+void func_line_exec __ARGS((void *cookie));
+void func_line_end __ARGS((void *cookie));
+int func_has_ended __ARGS((void *cookie));
+int func_has_abort __ARGS((void *cookie));
+int read_viminfo_varlist __ARGS((vir_T *virp, int writing));
+void write_viminfo_varlist __ARGS((FILE *fp));
+int store_session_globals __ARGS((FILE *fd));
+void last_set_msg __ARGS((scid_T scriptID));
+void ex_oldfiles __ARGS((exarg_T *eap));
+int modify_fname __ARGS((char_u *src, int *usedlen, char_u **fnamep, char_u *
+                         *bufp,
+                         int *fnamelen));
+char_u *do_string_sub __ARGS((char_u *str, char_u *pat, char_u *sub,
+                              char_u *flags));
+/* vim: set ft=c : */
+#endif /* NEOVIM_EVAL_H */