revert converting KotlinModifierListStubImpl
++ draft
Minor
Move logic dealing with mask from KotlinModifierListStubImpl

To a separate kotlin file
NAME
++
Convert to Kotlin: KotlinObjectStubImpl
++
Convert to Kotlin: KotlinObjectStubImpl
Convert to Kotlin: Stub interfaces and place them in one file
++
++
++
++
++
++
Convert to Kotlin: KotlinFunctionStubImpl and KotlinPropertyStubImpl
++
++
tests ++