STEP 0:
    modifications:
        U : js/l1.0.kt -> js/l1.kt
        U : common/l1.0.kt -> common/l1.kt
    added file: l1.kt, l1.kt.1
STEP 1:
    modifications:
        U : js/l1.1.kt -> js/l1.kt
    modified ir: l1.kt.1
STEP 2:
    modifications:
        U : common/l1.2.kt -> common/l1.kt
    modified ir: l1.kt

