build: allow IWYU to fix includes for all .c files

Allow Include What You Use to remove unnecessary includes and only
include what is necessary. This helps with reducing compilation times
and makes it easier to visualise which dependencies are actually
required.

Work on https://github.com/neovim/neovim/issues/549, but doesn't close
it since this only works fully for .c files and not headers.

1 files changed, 51 insertions, 54 deletions

diff --git a/src/nvim/spell.c b/src/nvim/spell.c
index b9ea7557c4..8ee28fea34 100644
--- a/src/nvim/spell.c
+++ b/src/nvim/spell.c
@@ -56,61 +56,58 @@
 // Use DEBUG_TRIEWALK to print the changes made in suggest_trie_walk() for a
 // specific word.
 
-#include <assert.h>               // for assert
-#include <inttypes.h>             // for uint32_t, uint16_t, uint8_t
-#include <limits.h>               // for INT_MAX
-#include <stdbool.h>              // for false, true, bool
-#include <stddef.h>               // for NULL, size_t, ptrdiff_t
-#include <stdio.h>                // for snprintf
-#include <string.h>               // for memmove, strstr, memcpy, memset
-
-#include "nvim/ascii.h"           // for NUL, ascii_isdigit, ascii_iswhite
-#include "nvim/autocmd.h"         // for apply_autocmds
-#include "nvim/buffer.h"          // for bufref_valid, set_bufref, buf_is_empty
-#include "nvim/buffer_defs.h"     // for win_T, synblock_T, buf_T, w_p_...
-#include "nvim/change.h"          // for changed_bytes
-#include "nvim/charset.h"         // for skipwhite, getwhitecols, skipbin
-#include "nvim/cursor.h"          // for get_cursor_line_ptr
+#include <assert.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "nvim/ascii.h"
+#include "nvim/autocmd.h"
+#include "nvim/buffer.h"
+#include "nvim/change.h"
+#include "nvim/charset.h"
+#include "nvim/cursor.h"
 #include "nvim/decoration.h"
-#include "nvim/drawscreen.h"      // for NOT_VALID, redraw_later
-#include "nvim/eval/typval.h"     // for semsg
-#include "nvim/ex_cmds.h"         // for do_sub_msg
-#include "nvim/ex_cmds_defs.h"    // for exarg_T
-#include "nvim/ex_docmd.h"        // for do_cmdline_cmd
-#include "nvim/garray.h"          // for garray_T, GA_EMPTY, GA_APPEND_...
-#include "nvim/gettext.h"         // for _, N_
-#include "nvim/hashtab.h"         // for hash_clear_all, hash_init, has...
-#include "nvim/highlight_defs.h"  // for HLF_COUNT, hlf_T, HLF_SPB, HLF...
-#include "nvim/insexpand.h"       // for ins_compl_add_infercase, ins_c...
-#include "nvim/log.h"             // for ELOG
-#include "nvim/macros.h"          // for MB_PTR_ADV, MB_PTR_BACK, ASCII...
-#include "nvim/mark.h"            // for clearpos
-#include "nvim/mbyte.h"           // for utf_ptr2char, utf_char2bytes
-#include "nvim/memline.h"         // for ml_append, ml_get_buf, ml_close
-#include "nvim/memline_defs.h"    // for memline_T
-#include "nvim/memory.h"          // for xfree, xmalloc, xcalloc, xstrdup
-#include "nvim/message.h"         // for emsg, msg_puts, give_warning
-#include "nvim/option.h"          // for copy_option_part, set_option_v...
-#include "nvim/option_defs.h"     // for p_ws, OPT_LOCAL, p_enc, SHM_SE...
-#include "nvim/os/fs.h"           // for os_remove
-#include "nvim/os/input.h"        // for line_breakcheck
-#include "nvim/os/os_defs.h"      // for MAXPATHL
-#include "nvim/path.h"            // for path_full_compare, path_tail...
-#include "nvim/pos.h"             // for pos_T, colnr_T, linenr_T
-#include "nvim/regexp.h"          // for vim_regfree, vim_regexec, vim_...
-#include "nvim/regexp_defs.h"     // for regmatch_T, regprog_T
-#include "nvim/runtime.h"         // for DIP_ALL, do_in_runtimepath
-#include "nvim/search.h"          // for SEARCH_KEEP, for do_search
-#include "nvim/spell.h"           // for FUNC_ATTR_NONNULL_ALL, FUNC_AT...
-#include "nvim/spell_defs.h"      // for slang_T, langp_T, MAXWLEN, sal...
-#include "nvim/spellfile.h"       // for spell_load_file
-#include "nvim/spellsuggest.h"    // for spell_suggest_list
-#include "nvim/strings.h"         // for vim_strchr, vim_snprintf, conc...
-#include "nvim/syntax.h"          // for syn_get_id, syntax_present
-#include "nvim/types.h"           // for char_u
-#include "nvim/undo.h"            // for u_save_cursor
-#include "nvim/vim.h"             // for curwin, strlen, STRLCPY, STRNCMP
-#include "nvim/window.h"          // for win_valid_any_tab
+#include "nvim/decoration_provider.h"
+#include "nvim/drawscreen.h"
+#include "nvim/ex_cmds.h"
+#include "nvim/ex_cmds_defs.h"
+#include "nvim/ex_docmd.h"
+#include "nvim/garray.h"
+#include "nvim/gettext.h"
+#include "nvim/globals.h"
+#include "nvim/hashtab.h"
+#include "nvim/highlight_defs.h"
+#include "nvim/insexpand.h"
+#include "nvim/log.h"
+#include "nvim/macros.h"
+#include "nvim/mark.h"
+#include "nvim/mbyte.h"
+#include "nvim/memline.h"
+#include "nvim/memory.h"
+#include "nvim/message.h"
+#include "nvim/option.h"
+#include "nvim/os/fs.h"
+#include "nvim/os/input.h"
+#include "nvim/os/os_defs.h"
+#include "nvim/path.h"
+#include "nvim/pos.h"
+#include "nvim/regexp.h"
+#include "nvim/runtime.h"
+#include "nvim/search.h"
+#include "nvim/spell.h"
+#include "nvim/spell_defs.h"
+#include "nvim/spellfile.h"
+#include "nvim/spellsuggest.h"
+#include "nvim/strings.h"
+#include "nvim/syntax.h"
+#include "nvim/types.h"
+#include "nvim/undo.h"
+#include "nvim/vim.h"
+#include "nvim/window.h"
 
 // Result values.  Lower number is accepted over higher one.
 enum {