replace Resolved with ResolvedAt to reduce amount of times we call ti…

…me.Now() to 1 per iteration

Signed-off-by: Evgeny Kuzin <evgeny.kuzin@outlook.com>

inhibit/inhibit.go

@@ -231,9 +231,10 @@ func NewInhibitRule(cr config.InhibitRule) *InhibitRule {
 // source and the target side of the rule are disregarded.
 func (r *InhibitRule) hasEqual(lset model.LabelSet, excludeTwoSidedMatch bool) (model.Fingerprint, bool) {
 Outer:
+	now := time.Now()
 	for _, a := range r.scache.List() {
 		// The cache might be stale and contain resolved alerts.
-		if a.Resolved() {
+		if a.ResolvedAt(now) {
 			continue
 		}
 		for n := range r.Equal {