[Interpreter] Add support for loading from / storing to outer context variables.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index f3f6be8a49a78b68b3547de3aa82cd8278d2c9c9..b139ab46b338f5ff7c44407c8739cf460ac32273 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -63,7 +63,10 @@ bool Interpreter::MakeBytecode(CompilationInfo* info) {
   info->EnsureFeedbackVector();
   Handle<BytecodeArray> bytecodes = generator.MakeBytecode(info);
   if (FLAG_print_bytecode) {
-    bytecodes->Print();
+    OFStream os(stdout);
+    os << "Function: " << info->GetDebugName().get() << std::endl;
+    bytecodes->Print(os);
+    os << std::flush;
   }
 
   info->SetBytecodeArray(bytecodes);