Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

src/nvim/ex_cmds2.h

@@ -0,0 +1,95 @@
+#ifndef NEOVIM_EX_CMDS2_H
+#define NEOVIM_EX_CMDS2_H
+/* ex_cmds2.c */
+void do_debug(char_u *cmd);
+void ex_debug(exarg_T *eap);
+void dbg_check_breakpoint(exarg_T *eap);
+int dbg_check_skipped(exarg_T *eap);
+void ex_breakadd(exarg_T *eap);
+void ex_debuggreedy(exarg_T *eap);
+void ex_breakdel(exarg_T *eap);
+void ex_breaklist(exarg_T *eap);
+linenr_T dbg_find_breakpoint(int file, char_u *fname, linenr_T after);
+int has_profiling(int file, char_u *fname, int *fp);
+void dbg_breakpoint(char_u *name, linenr_T lnum);
+void profile_start(proftime_T *tm);
+void profile_end(proftime_T *tm);
+void profile_sub(proftime_T *tm, proftime_T *tm2);
+char *profile_msg(proftime_T *tm);
+void profile_setlimit(long msec, proftime_T *tm);
+int profile_passed_limit(proftime_T *tm);
+void profile_zero(proftime_T *tm);
+void profile_divide(proftime_T *tm, int count, proftime_T *tm2);
+void profile_add(proftime_T *tm, proftime_T *tm2);
+void profile_self(proftime_T *self, proftime_T *total,
+                  proftime_T *children);
+void profile_get_wait(proftime_T *tm);
+void profile_sub_wait(proftime_T *tm, proftime_T *tma);
+int profile_equal(proftime_T *tm1, proftime_T *tm2);
+int profile_cmp(const proftime_T *tm1, const proftime_T *tm2);
+void ex_profile(exarg_T *eap);
+char_u *get_profile_name(expand_T *xp, int idx);
+void set_context_in_profile_cmd(expand_T *xp, char_u *arg);
+void profile_dump(void);
+void script_prof_save(proftime_T *tm);
+void script_prof_restore(proftime_T *tm);
+void prof_inchar_enter(void);
+void prof_inchar_exit(void);
+int prof_def_func(void);
+int autowrite(buf_T *buf, int forceit);
+void autowrite_all(void);
+int check_changed(buf_T *buf, int flags);
+void dialog_changed(buf_T *buf, int checkall);
+int can_abandon(buf_T *buf, int forceit);
+int check_changed_any(int hidden);
+int check_fname(void);
+int buf_write_all(buf_T *buf, int forceit);
+void get_arglist(garray_T *gap, char_u *str);
+int get_arglist_exp(char_u *str, int *fcountp, char_u ***fnamesp,
+                    int wig);
+void check_arg_idx(win_T *win);
+void ex_args(exarg_T *eap);
+void ex_previous(exarg_T *eap);
+void ex_rewind(exarg_T *eap);
+void ex_last(exarg_T *eap);
+void ex_argument(exarg_T *eap);
+void do_argfile(exarg_T *eap, int argn);
+void ex_next(exarg_T *eap);
+void ex_argedit(exarg_T *eap);
+void ex_argadd(exarg_T *eap);
+void ex_argdelete(exarg_T *eap);
+void ex_listdo(exarg_T *eap);
+void ex_compiler(exarg_T *eap);
+void ex_runtime(exarg_T *eap);
+int source_runtime(char_u *name, int all);
+int do_in_runtimepath(char_u *name, int all,
+                      void (*callback)(char_u *fname, void *ck),
+                      void *cookie);
+void ex_options(exarg_T *eap);
+void ex_source(exarg_T *eap);
+linenr_T *source_breakpoint(void *cookie);
+int *source_dbg_tick(void *cookie);
+int source_level(void *cookie);
+int do_source(char_u *fname, int check_other, int is_vimrc);
+void ex_scriptnames(exarg_T *eap);
+void scriptnames_slash_adjust(void);
+char_u *get_scriptname(scid_T id);
+void free_scriptnames(void);
+char *fgets_cr(char *s, int n, FILE *stream);
+char_u *getsourceline(int c, void *cookie, int indent);
+void script_line_start(void);
+void script_line_exec(void);
+void script_line_end(void);
+void ex_scriptencoding(exarg_T *eap);
+void ex_finish(exarg_T *eap);
+void do_finish(exarg_T *eap, int reanimate);
+int source_finished(char_u *(*fgetline)(int, void *, int), void *cookie);
+void ex_checktime(exarg_T *eap);
+char_u *get_mess_lang(void);
+void set_lang_var(void);
+void ex_language(exarg_T *eap);
+void free_locales(void);
+char_u *get_lang_arg(expand_T *xp, int idx);
+char_u *get_locales(expand_T *xp, int idx);
+
+#endif /* NEOVIM_EX_CMDS2_H */