[Interpreter] Add support for for..in.

src/compiler/bytecode-graph-builder.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/compiler/bytecode-graph-builder.h"
 
 #include "src/compiler/linkage.h"
 #include "src/compiler/operator-properties.h"
 #include "src/interpreter/bytecode-array-iterator.h"
 
@@ skipping 640 matching lines @@
 
 
 void BytecodeGraphBuilder::VisitReturn(
     const interpreter::BytecodeArrayIterator& iterator) {
   Node* control =
       NewNode(common()->Return(), environment()->LookupAccumulator());
   UpdateControlDependencyToLeaveFunction(control);
 }
 
 
+void BytecodeGraphBuilder::VisitForInPrepare(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
+void BytecodeGraphBuilder::VisitForInNext(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
+void BytecodeGraphBuilder::VisitForInDone(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
 Node** BytecodeGraphBuilder::EnsureInputBufferSize(int size) {
   if (size > input_buffer_size_) {
     size = size + kInputBufferSizeIncrement + input_buffer_size_;
     input_buffer_ = local_zone()->NewArray<Node*>(size);
     input_buffer_size_ = size;
   }
   return input_buffer_;
 }
 
 
@@ skipping 83 matching lines @@
 
 void BytecodeGraphBuilder::UpdateControlDependencyToLeaveFunction(Node* exit) {
   if (environment()->IsMarkedAsUnreachable()) return;
   environment()->MarkAsUnreachable();
   exit_controls_.push_back(exit);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8