[Interpreter] Add an unsigned immediate operand type

src/interpreter/interpreter-assembler.h

 // 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.
 
 #ifndef V8_INTERPRETER_INTERPRETER_ASSEMBLER_H_
 #define V8_INTERPRETER_INTERPRETER_ASSEMBLER_H_
 
 #include "src/allocation.h"
 #include "src/builtins/builtins.h"
 #include "src/code-stub-assembler.h"
@@ skipping 14 matching lines @@
 
   // Returns the count immediate for bytecode operand |operand_index| in the
   // current bytecode.
   compiler::Node* BytecodeOperandCount(int operand_index);
   // Returns the 8-bit flag for bytecode operand |operand_index| in the
   // current bytecode.
   compiler::Node* BytecodeOperandFlag(int operand_index);
   // Returns the index immediate for bytecode operand |operand_index| in the
   // current bytecode.
   compiler::Node* BytecodeOperandIdx(int operand_index);
+  // Returns the UImm8 immediate for bytecode operand |operand_index| in the
+  // current bytecode.
+  compiler::Node* BytecodeOperandUImm(int operand_index);
   // Returns the Imm8 immediate for bytecode operand |operand_index| in the
   // current bytecode.
   compiler::Node* BytecodeOperandImm(int operand_index);
   // Returns the register index for bytecode operand |operand_index| in the
   // current bytecode.
   compiler::Node* BytecodeOperandReg(int operand_index);
   // Returns the runtime id immediate for bytecode operand
   // |operand_index| in the current bytecode.
   compiler::Node* BytecodeOperandRuntimeId(int operand_index);
   // Returns the intrinsic id immediate for bytecode operand
@@ skipping 250 matching lines @@
   compiler::Node* stack_pointer_before_call_;
 
   DISALLOW_COPY_AND_ASSIGN(InterpreterAssembler);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_INTERPRETER_ASSEMBLER_H_