[master] 6d32a53d3 vrt: Move hdr_t definition to vrt.h

[Dridi Boukelmoune]

commit 6d32a53d33e6948cd7c1e9561df09250cbe1621c
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Tue Apr 1 18:10:14 2025 +0200

    vrt: Move hdr_t definition to vrt.h

diff --git a/bin/varnishd/cache/cache.h b/bin/varnishd/cache/cache.h
index a9b81db5b..3b01a7ac7 100644
--- a/bin/varnishd/cache/cache.h
+++ b/bin/varnishd/cache/cache.h
@@ -83,8 +83,6 @@ struct body_status {
 
 typedef const struct body_status *body_status_t;
 
-typedef const char *hdr_t;
-
 /*--------------------------------------------------------------------*/
 
 struct stream_close {
diff --git a/include/vrt.h b/include/vrt.h
index 49e3f5960..1a126e3e1 100644
--- a/include/vrt.h
+++ b/include/vrt.h
@@ -693,9 +693,11 @@ enum gethdr_e {
 	HDR_BERESP
 };
 
+typedef const char *hdr_t;
+
 struct gethdr_s {
 	enum gethdr_e	where;
-	const char	*what;
+	hdr_t		what;
 };
 
 VCL_HTTP VRT_selecthttp(VRT_CTX, enum gethdr_e);