[builtins] HasOwnProperty: handle non-internalized string keys

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 1544 matching lines @@
 
 void* libc_memset(void* dest, int byte, size_t n) {
   DCHECK_EQ(static_cast<char>(byte), byte);
   return memset(dest, byte, n);
 }
 
 ExternalReference ExternalReference::libc_memset_function(Isolate* isolate) {
   return ExternalReference(Redirect(isolate, FUNCTION_ADDR(libc_memset)));
 }
 
+ExternalReference ExternalReference::try_internalize_string_function(
+    Isolate* isolate) {
+  return ExternalReference(Redirect(
+      isolate, FUNCTION_ADDR(StringTable::LookupStringIfExists_NoAllocate)));
+}
+
 ExternalReference ExternalReference::page_flags(Page* page) {
   return ExternalReference(reinterpret_cast<Address>(page) +
                            MemoryChunk::kFlagsOffset);
 }
 
 
 ExternalReference ExternalReference::ForDeoptEntry(Address entry) {
   return ExternalReference(entry);
 }
 
@@ skipping 367 matching lines @@
 
 
 void Assembler::DataAlign(int m) {
   DCHECK(m >= 2 && base::bits::IsPowerOfTwo32(m));
   while ((pc_offset() & (m - 1)) != 0) {
     db(0);
   }
 }
 }  // namespace internal
 }  // namespace v8