alloc: allow arbitrary repositories for alloc functions

We have to convert all of the alloc functions at once, because alloc_report
uses a funky macro for reporting. It is better for the sake of mechanical
conversion to convert multiple functions at once rather than changing the
structure of the reporting function.

We record all memory allocation in alloc.c, and free them in
clear_alloc_state, which is called for all repositories except
the_repository.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

tag.c

@@ -3,6 +3,7 @@
 #include "commit.h"
 #include "tree.h"
 #include "blob.h"
+#include "alloc.h"
 #include "gpg-interface.h"
 
 const char *tag_type = "tag";
@@ -115,6 +116,14 @@ static timestamp_t parse_tag_date(const char *buf, const char *tail)
 	return parse_timestamp(dateptr, NULL, 10);
 }
 
+void release_tag_memory(struct tag *t)
+{
+	free(t->tag);
+	t->tagged = NULL;
+	t->object.parsed = 0;
+	t->date = 0;
+}
+
 int parse_tag_buffer(struct tag *item, const void *data, unsigned long size)
 {
 	struct object_id oid;