[Interpreter] Support top-level code.

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/code-factory.h"
 #include "src/compiler.h"
 #include "src/compiler/interpreter-assembler.h"
 #include "src/factory.h"
@@ skipping 41 matching lines @@
       Handle<Code> code = assembler.GenerateCode();                   \
       handler_table->set(static_cast<int>(Bytecode::k##Name), *code); \
     }
     BYTECODE_LIST(GENERATE_CODE)
 #undef GENERATE_CODE
   }
 }
 
 
 bool Interpreter::MakeBytecode(CompilationInfo* info) {
-  Handle<SharedFunctionInfo> shared_info = info->shared_info();
-
   BytecodeGenerator generator(info->isolate(), info->zone());
   info->EnsureFeedbackVector();
   Handle<BytecodeArray> bytecodes = generator.MakeBytecode(info);
   if (FLAG_print_bytecode) {
     bytecodes->Print();
   }
 
-  DCHECK(shared_info->function_data()->IsUndefined());
-  if (!shared_info->function_data()->IsUndefined()) {
-    return false;
-  }
-
-  shared_info->set_function_data(*bytecodes);
+  info->SetBytecodeArray(bytecodes);
   info->SetCode(info->isolate()->builtins()->InterpreterEntryTrampoline());
   return true;
 }
 
 
 bool Interpreter::IsInterpreterTableInitialized(
     Handle<FixedArray> handler_table) {
   DCHECK(handler_table->length() == static_cast<int>(Bytecode::kLast) + 1);
   return handler_table->get(0) != isolate_->heap()->undefined_value();
 }
@@ skipping 439 matching lines @@
 //
 // Return the value in register 0.
 void Interpreter::DoReturn(compiler::InterpreterAssembler* assembler) {
   __ Return();
 }
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8