REORG: include: move sample.h to haproxy/sample{,-t}.h
This one is particularly tricky to move because everyone uses it
and it depends on a lot of other types. For example it cannot include
arg-t.h and must absolutely only rely on forward declarations to avoid
dependency loops between vars -> sample_data -> arg. In order to address
this one, it would be nice to split the sample_data part out of sample.h.
diff --git a/src/cfgparse-listen.c b/src/cfgparse-listen.c
index d2bd8d4..0e255af 100644
--- a/src/cfgparse-listen.c
+++ b/src/cfgparse-listen.c
@@ -19,6 +19,7 @@
#include <haproxy/http_htx.h>
#include <haproxy/http_rules.h>
#include <haproxy/listener.h>
+#include <haproxy/sample.h>
#include <types/stats.h>
#include <proto/acl.h>