Prepare for onerror= support

This change does not do anything yet, it just saves the abort flag.

Ref varnish-cache:
- 26097fb091496f79ef9a38b22e3639735fb39280
- a8449faff23a3c29d19781998fa5f2ee7ce110af

src/pesi.h

@@ -50,6 +50,7 @@ struct pecx {
 
 	ssize_t			l;
 	int			state;
+	int			abrt;
 };
 
 struct pesi {

src/vdp_pesi.c

@@ -908,7 +908,7 @@ vdp_pesi_bytes(struct vdp_ctx *vdx, enum vdp_action act, void **priv,
 	struct nexus_gzip *parent_gzip = NULL;
 	struct bytes_tree *tree;
 	struct node *node, *child = NULL;
-	int retval = 0, parallel;
+	int abrt, retval = 0, parallel;
 
 	CHECK_OBJ_NOTNULL(vdx, VDP_CTX_MAGIC);
 
@@ -953,6 +953,7 @@ vdp_pesi_bytes(struct vdp_ctx *vdx, enum vdp_action act, void **priv,
 
 	pp = ptr;
 	while (1) {
+		abrt = 0;
 		switch (pecx->state) {
 		case 0:
 			pecx->p = ObjGetAttr(req->wrk, req->objcore,
@@ -1026,7 +1027,10 @@ vdp_pesi_bytes(struct vdp_ctx *vdx, enum vdp_action act, void **priv,
 				Debug("SKIP1(%d)\n", (int)pecx->l);
 				pecx->state = 4;
 				break;
-			case VEC_INCL:
+			case VEC_IA:
+				abrt = FEATURE(FEATURE_ESI_INCLUDE_ONERROR);
+				/* FALLTHROUGH */
+			case VEC_IC:
 				pecx->p++;
 				q = (void*)strchr((const char*)pecx->p, '\0');
 				AN(q);
@@ -1044,6 +1048,7 @@ vdp_pesi_bytes(struct vdp_ctx *vdx, enum vdp_action act, void **priv,
 
 				node_insert(tree, node, child);
 
+				pesi->pecx->abrt = abrt;
 				VSLdbg(vdx, "vped_vdp: call vped_include");
 				parallel =
 					vped_include(req, (const char*)q,