STEP 0:
    modifications:
        U : A.0.kt -> A.kt
        U : B.0.kt -> B.kt
        U : C.0.kt -> C.kt
    added file: A.kt, B.kt, C.kt
STEP 1:
    modifications:
        U : A.1.kt -> A.kt
    modified ir: A.kt
    updated imports: B.kt, C.kt
STEP 2:
    modifications:
        U : B.2.kt -> B.kt
    modified ir: B.kt
    updated imports: C.kt
STEP 3:
    modifications:
        U : A.0.kt -> A.kt
    modified ir: A.kt
    updated imports: B.kt, C.kt
STEP 4:
    modifications:
        U : B.0.kt -> B.kt
    modified ir: B.kt
    updated imports: C.kt
STEP 5:
    modifications:
        U : A.1.kt -> A.kt
    modified ir: A.kt
    updated imports: B.kt, C.kt
