private void processInstanceOf(GrExpression expression, boolean negated) {
    FList<ConditionInstruction> conditionsBefore = myConditions;
    ConditionInstruction cond = registerCondition(expression, negated);
    addNodeAndCheckPending(cond);

    addNode(new InstanceOfInstruction(expression, cond, myVariableMapping));
    NegatingGotoInstruction negation = new NegatingGotoInstruction(expression, cond);
    addNode(negation);
    InstructionImpl possibleReturn = handlePossibleReturn(expression);
    addPendingEdge(expression, possibleReturn != null ? possibleReturn : negation);

    myHead = cond;
    addNode(new InstanceOfInstruction(expression, cond, myVariableMapping));
    myConditions = conditionsBefore;
  }
private void processInstanceOf(GrExpression expression, boolean negated)