STEP 0:
    modifications:
        U : lib.0.kt -> lib.kt
    added file: lib.kt
STEP 1:
    modifications:
        U : lib.1.kt -> lib.kt
    modified ir: lib.kt
STEP 2:
    modifications:
        U : lib.2.kt -> lib.kt
    modified ir: lib.kt
STEP 3:
    modifications:
        U : lib.3.kt -> lib.kt
    modified ir: lib.kt
