public static boolean isVariableAccess(@NotNull ControlFlow flow, int offset, @NotNull PsiVariable variable) {
    Instruction instruction = flow.getInstructions().get(offset);
    PsiManager psiManager = variable.getManager();
    return instruction instanceof ReadVariableInstruction && psiManager.areElementsEquivalent(((ReadVariableInstruction)instruction).variable, variable) ||
           instruction instanceof WriteVariableInstruction && psiManager.areElementsEquivalent(((WriteVariableInstruction)instruction).variable, variable);
  }
public static boolean isVariableAccess(@NotNull ControlFlow flow, int offset, @NotNull PsiVariable variable)