[Interpreter] Pass context to interpreter bytecode handlers and add LoadConstextSlot

src/compiler/raw-machine-assembler.h

 // Copyright 2014 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.
 
 #ifndef V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 #define V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 
 #include "src/assembler.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
@@ skipping 492 matching lines @@
   // Call to a C function with eight arguments.
   Node* CallCFunction8(MachineType return_type, MachineType arg0_type,
                        MachineType arg1_type, MachineType arg2_type,
                        MachineType arg3_type, MachineType arg4_type,
                        MachineType arg5_type, MachineType arg6_type,
                        MachineType arg7_type, Node* function, Node* arg0,
                        Node* arg1, Node* arg2, Node* arg3, Node* arg4,
                        Node* arg5, Node* arg6, Node* arg7);
   Node* TailCallInterpreterDispatch(const CallDescriptor* call_descriptor,
                                     Node* target, Node* arg1, Node* arg2,
-                                    Node* arg3, Node* arg4, Node* arg5);
+                                    Node* arg3, Node* arg4, Node* arg5,
+                                    Node* arg6);
 
   // ===========================================================================
   // The following utility methods deal with control flow, hence might switch
   // the current basic block or create new basic blocks for labels.
 
   // Control flow.
   void Goto(Label* label);
   void Branch(Node* condition, Label* true_val, Label* false_val);
   void Switch(Node* index, Label* default_label, int32_t* case_values,
               Label** case_labels, size_t case_count);
@@ skipping 70 matching lines @@
   BasicBlock* current_block_;
 
   DISALLOW_COPY_AND_ASSIGN(RawMachineAssembler);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_