STEP 0:
    modifications:
        U : klass.0.kt -> klass.kt
        U : l1a.0.kt -> l1a.kt
    added file: l1a.kt, klass.kt
STEP 1:
    modifications:
        U : l1a.1.kt -> l1a.kt
    modified ir: l1a.kt
    updated exports: l1a.kt, klass.kt
STEP 2:
    modifications:
        U : klass.2.kt -> klass.kt
    modified ir: klass.kt
STEP 3:
    modifications:
        U : l1a.3.kt -> l1a.kt
    modified ir: l1a.kt
    updated exports: l1a.kt, klass.kt
STEP 4:
    modifications:
        U : klass.4.kt -> klass.kt
    modified ir: klass.kt
