[interpreter, debugger] implement bytecode break location iterator.

src/interpreter/bytecodes.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_BYTECODES_H_
 #define V8_INTERPRETER_BYTECODES_H_
 
 #include <iosfwd>
 
 // Clients of this interface shouldn't depend on lots of interpreter internals.
@@ skipping 445 matching lines @@
   // constant pool entry (OperandType::kIdx16).
   static bool IsJumpConstantWide(Bytecode bytecode);
 
   // Returns true if the bytecode is a jump or conditional jump taking
   // any kind of operand.
   static bool IsJump(Bytecode bytecode);
 
   // Returns true if the bytecode is a conditional jump, a jump, or a return.
   static bool IsJumpOrReturn(Bytecode bytecode);
 
+  // Returns true if the bytecode is a call or a constructor call.
+  static bool IsCallOrNew(Bytecode bytecode);
+
   // Returns true if |operand_type| is a register index operand (kIdx8/kIdx16).
   static bool IsIndexOperandType(OperandType operand_type);
 
   // Returns true if |operand_type| represents an immediate.
   static bool IsImmediateOperandType(OperandType operand_type);
 
   // Returns true if |operand_type| is a register count operand
   // (kRegCount8/kRegCount16).
   static bool IsRegisterCountOperandType(OperandType operand_type);
 
@@ skipping 20 matching lines @@
 
 std::ostream& operator<<(std::ostream& os, const Bytecode& bytecode);
 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type);
 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_type);
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODES_H_