sparse-index.h: move declarations for sparse-index.c from cache.h
Note in particular that this reverses the decision made in 118a2e8bde0
("cache: move ensure_full_index() to cache.h", 2021-04-01).
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index f3a1d3e..ee296e5 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -38,6 +38,7 @@
#include "gpg-interface.h"
#include "column.h"
#include "sequencer.h"
+#include "sparse-index.h"
#include "mailmap.h"
#include "help.h"
#include "commit-reach.h"
