Commit: runtime(diff): Update default links (#13776)

[Christian Brabandt]

runtime(diff): Update default links (#13776)

Commit: https://github.com/vim/vim/commit/00b470052b71ca10d663186d99683e8379b21154
Author: Evgeni Chasnovski <evgeni.c...@gmail.com>
Date: Wed Dec 27 19:51:43 2023 +0200

runtime(diff): Update default links (https://github.com/vim/vim/issues/13776)

Problem: Current default links for `diffAdded`, `diffChanged`, and
`diffRemoved` do not address the diff nature of the filetype.
Solution: Use `DiffAdd`, `DiffChange`, and `DiffDelete`.

closes: #13759

Signed-off-by: Evgeni Chasnovski <evgeni.c...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/syntax/diff.vim b/runtime/syntax/diff.vim
index 4cadf5dae..b5c3f5ecb 100644
--- a/runtime/syntax/diff.vim
+++ b/runtime/syntax/diff.vim
@@ -378,9 +378,9 @@ hi def link diffBDiffer Constant
hi def link diffIsA Constant
hi def link diffNoEOL Constant
hi def link diffCommon Constant
-hi def link diffRemoved Special
-hi def link diffChanged PreProc
-hi def link diffAdded Identifier
+hi def link diffRemoved DiffDelete
+hi def link diffChanged DiffChange
+hi def link diffAdded DiffAdd
hi def link diffLine Statement
hi def link diffSubname PreProc
hi def link diffComment Comment