[interpreter] Create custom call opcodes for specific argument counts

src/interpreter/interpreter-assembler.cc

Index: src/interpreter/interpreter-assembler.cc
diff --git a/src/interpreter/interpreter-assembler.cc b/src/interpreter/interpreter-assembler.cc
index 9e3c65079f18cb28bf89ca69c8305e1ba0e43c1a..c8da15630b2cb260f7bf71b68f1791e4b8e30ea3 100644
--- a/src/interpreter/interpreter-assembler.cc
+++ b/src/interpreter/interpreter-assembler.cc
@@ -39,6 +39,7 @@ InterpreterAssembler::InterpreterAssembler(CodeAssemblerState* state,
   accumulator_.Bind(Parameter(InterpreterDispatchDescriptor::kAccumulator));
   bytecode_offset_.Bind(
       Parameter(InterpreterDispatchDescriptor::kBytecodeOffset));
+
   if (FLAG_trace_ignition) {
     TraceBytecode(Runtime::kInterpreterTraceBytecodeEntry);
   }
@@ -415,13 +416,16 @@ Node* InterpreterAssembler::BytecodeOperandImmSmi(int operand_index) {
   return SmiFromWord32(BytecodeOperandImm(operand_index));
 }
 
-Node* InterpreterAssembler::BytecodeOperandIdx(int operand_index) {
+Node* InterpreterAssembler::BytecodeOperandIdxInt32(int operand_index) {
   DCHECK(OperandType::kIdx ==
          Bytecodes::GetOperandType(bytecode_, operand_index));
   OperandSize operand_size =
       Bytecodes::GetOperandSize(bytecode_, operand_index, operand_scale());
-  return ChangeUint32ToWord(
-      BytecodeUnsignedOperand(operand_index, operand_size));
+  return BytecodeUnsignedOperand(operand_index, operand_size);
+}
+
+Node* InterpreterAssembler::BytecodeOperandIdx(int operand_index) {
+  return ChangeUint32ToWord(BytecodeOperandIdxInt32(operand_index));
 }
 
 Node* InterpreterAssembler::BytecodeOperandIdxSmi(int operand_index) {