[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 557ad77fb5f5f986ed8d56fabdd1d459981f8318..d76af992240493b239b337c297084a24b19a3065 100644
--- a/src/interpreter/interpreter-assembler.cc
+++ b/src/interpreter/interpreter-assembler.cc
@@ -452,13 +452,16 @@ 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) {