int expressionUnBoxedTypeId = getUnBoxedTypeId(operand);
AssignmentOperator assignmentInstruction = new AssignmentOperator(
Instruction.T_Object, Instruction.T_Object, fCounter);
push(assignmentInstruction);
operand.accept(this);
switch (char0) {
case '+': // plus plus
push(new PlusOperator(expressionUnBoxedTypeId,
expressionUnBoxedTypeId, expressionUnBoxedTypeId,
fCounter));