[interpreter] Add CreateFunctionContext bytecode

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/bytecode-branch-analysis.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/operator-properties.h"
 #include "src/interpreter/bytecodes.h"
@@ skipping 887 matching lines @@
 void BytecodeGraphBuilder::VisitCreateClosure() {
   Handle<SharedFunctionInfo> shared_info = Handle<SharedFunctionInfo>::cast(
       bytecode_iterator().GetConstantForIndexOperand(0));
   PretenureFlag tenured =
       bytecode_iterator().GetFlagOperand(1) ? TENURED : NOT_TENURED;
   const Operator* op = javascript()->CreateClosure(shared_info, tenured);
   Node* closure = NewNode(op);
   environment()->BindAccumulator(closure);
 }
 
+void BytecodeGraphBuilder::VisitCreateFunctionContext() {
+  int32_t slots = bytecode_iterator().GetImmediateOperand(0);
+  const Operator* op = javascript()->CreateFunctionContext(slots);
+  Node* context = NewNode(op, GetFunctionClosure());
+  environment()->BindAccumulator(context);
+}
+
 void BytecodeGraphBuilder::BuildCreateArguments(CreateArgumentsType type) {
   FrameStateBeforeAndAfter states(this);
   const Operator* op = javascript()->CreateArguments(type);
   Node* object = NewNode(op, GetFunctionClosure());
   environment()->BindAccumulator(object, &states);
 }
 
 void BytecodeGraphBuilder::VisitCreateMappedArguments() {
   BuildCreateArguments(CreateArgumentsType::kMappedArguments);
 }
@@ skipping 911 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8