STEP 0:
    modifications:
        U : l1.0_init.kt -> l1.kt
    added file: l1.kt
STEP 1:
    modifications:
        U : l1.1_update_fun.kt -> l1.kt
    modified ir: l1.kt
STEP 2:
    modifications:
        U : l1.2_update_inline_fun.kt -> l1.kt
    modified ir: l1.kt
STEP 3:
    modifications:
        U : l1.3_add_param.kt -> l1.kt
    modified ir: l1.kt
STEP 4:
    modifications:
        U : l1.4_add_field.kt -> l1.kt
    modified ir: l1.kt
STEP 5:
    modifications:
        U : l1.5_update_field.kt -> l1.kt
    modified ir: l1.kt
STEP 6:
    modifications:
        U : l1.6_update_unused_inline.kt -> l1.kt
    modified ir: l1.kt
STEP 7:
    modifications:
        U : l1.7_add_unused_interface.kt -> l1.kt
    modified ir: l1.kt
STEP 8:
    modifications:
        U : l1.8_use_interface.kt -> l1.kt
    modified ir: l1.kt
STEP 9:
    modifications:
        U : l1.9_update_interface.kt -> l1.kt
    modified ir: l1.kt
STEP 10:
    modifications:
        U : l1.10_update_field_type.kt -> l1.kt
    modified ir: l1.kt
STEP 11:
    modifications:
        U : l1.11_update_field_type.kt -> l1.kt
    modified ir: l1.kt
