Inline fast-bailout-checks for LookupIterator::UpdateProtector

BUG=

Review URL: https://codereview.chromium.org/1754023003

Cr-Commit-Position: refs/heads/master@{#34438}

src/lookup.cc

@@ -171,10 +171,7 @@ bool LookupIterator::HolderIsInContextIndex(uint32_t index) const {
   return false;
 }
 
-void LookupIterator::UpdateProtector() {
-  if (!FLAG_harmony_species) return;
-
-  if (IsElement()) return;
+void LookupIterator::InternalUpdateProtector() {
   if (isolate_->bootstrapper()->IsActive()) return;
   if (!isolate_->IsArraySpeciesLookupChainIntact()) return;
 

src/lookup.h

@@ -257,9 +257,17 @@ class LookupIterator final BASE_EMBEDDED {
   }
   Handle<Object> GetDataValue() const;
   void WriteDataValue(Handle<Object> value);
-  void UpdateProtector();
+  inline void UpdateProtector() {
+    if (FLAG_harmony_species && !IsElement() &&
+        (*name_ == heap()->constructor_string() ||
+         *name_ == heap()->species_symbol())) {
+      InternalUpdateProtector();
+    }
+  }
 
  private:
+  void InternalUpdateProtector();
+
   enum class InterceptorState {
     kUninitialized,
     kSkipNonMasking,