[compiler] Properly guard the speculative optimizations for instanceof.

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index 68cf58905f87e1f62e0d2186409657ba29861d39..926442e40eb79522bfd3bbda673151a1c23c37ca 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -2826,9 +2826,12 @@ void AstGraphBuilder::VisitCompareOperation(CompareOperation* expr) {
     case Token::GTE:
       op = javascript()->GreaterThanOrEqual(hint);
       break;
-    case Token::INSTANCEOF:
-      op = javascript()->InstanceOf();
+    case Token::INSTANCEOF: {
+      VectorSlotPair feedback =
+          CreateVectorSlotPair(expr->CompareOperationFeedbackSlot());
+      op = javascript()->InstanceOf(feedback);
       break;
+    }
     case Token::IN:
       op = javascript()->HasProperty();
       break;