Type Feedback Vector lives in the closure

src/interpreter/interpreter.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/interpreter/interpreter.h"
 
 #include "src/ast/prettyprinter.h"
 #include "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/compiler/interpreter-assembler.h"
@@ skipping 69 matching lines @@
 
   if (info->parse_info() && FLAG_print_ast) {
     OFStream os(stdout);
     os << "--- AST ---" << std::endl
        << AstPrinter(info->isolate()).PrintProgram(info->literal()) << std::endl
        << std::flush;
   }
 #endif  // DEBUG
 
   BytecodeGenerator generator(info->isolate(), info->zone());
-  info->EnsureFeedbackVector();
+  info->EnsureFeedbackMetadata();
   Handle<BytecodeArray> bytecodes = generator.MakeBytecode(info);
   if (FLAG_print_bytecode) {
     OFStream os(stdout);
     bytecodes->Print(os);
     os << std::flush;
   }
 
   info->SetBytecodeArray(bytecodes);
   info->SetCode(info->isolate()->builtins()->InterpreterEntryTrampoline());
   return true;
@@ skipping 1809 matching lines @@
   Node* index_reg = __ BytecodeOperandReg(0);
   Node* index = __ LoadRegister(index_reg);
   Node* result = __ CallRuntime(Runtime::kForInStep, index);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8