A -> UClass (name = A)
init -> UParameter (name = init)
Int -> USimpleNameReferenceExpression (identifier = Int)
privateProp -> UField (name = privateProp)
mutableProp -> UField (name = mutableProp)
Int -> USimpleNameReferenceExpression (identifier = Int)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    = -> USimpleNameReferenceExpression (identifier = =)
    init -> USimpleNameReferenceExpression (identifier = init)
add -> UMethod (name = add)
x -> UParameter (name = x)
Int -> USimpleNameReferenceExpression (identifier = Int)
Int -> USimpleNameReferenceExpression (identifier = Int)
    result -> [!] UnknownKotlinExpression (PROPERTY)
    privateProp -> USimpleNameReferenceExpression (identifier = privateProp)
    privateProp -> USimpleNameReferenceExpression (identifier = privateProp)
    = -> USimpleNameReferenceExpression (identifier = =)
    x -> USimpleNameReferenceExpression (identifier = x)
    privateProp -> USimpleNameReferenceExpression (identifier = privateProp)
properties -> UMethod (name = properties)
    a -> [!] UnknownKotlinExpression (PROPERTY)
    A -> [!] UnknownKotlinExpression (CALL_EXPRESSION)
    x -> [!] UnknownKotlinExpression (PROPERTY)
    - -> USimpleNameReferenceExpression (identifier = -)
    a -> USimpleNameReferenceExpression (identifier = a)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    a -> USimpleNameReferenceExpression (identifier = a)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    = -> USimpleNameReferenceExpression (identifier = =)
    a -> USimpleNameReferenceExpression (identifier = a)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    += -> USimpleNameReferenceExpression (identifier = +=)
    x -> USimpleNameReferenceExpression (identifier = x)
    ++ -> USimpleNameReferenceExpression (identifier = ++)
    a -> USimpleNameReferenceExpression (identifier = a)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    a -> USimpleNameReferenceExpression (identifier = a)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    -- -> USimpleNameReferenceExpression (identifier = --)
A -> USimpleNameReferenceExpression (identifier = A)
ext -> UMethod (name = ext)
    x -> [!] UnknownKotlinExpression (PROPERTY)
    - -> USimpleNameReferenceExpression (identifier = -)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    = -> USimpleNameReferenceExpression (identifier = =)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    += -> USimpleNameReferenceExpression (identifier = +=)
    x -> USimpleNameReferenceExpression (identifier = x)
    ++ -> USimpleNameReferenceExpression (identifier = ++)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    mutableProp -> USimpleNameReferenceExpression (identifier = mutableProp)
    -- -> USimpleNameReferenceExpression (identifier = --)
