kotlin-fork/compiler/testData/diagnostics/tests/duplicateJvmSignature/erasure/delegationAndOwnMethod.kt

// !DIAGNOSTICS: -UNUSED_PARAMETER

trait Foo<T> {
    fun foo(l: List<T>)
}

class Bar(f: Foo<String>): Foo<String> by f {
    <!CONFLICTING_PLATFORM_DECLARATIONS!>fun foo(l: List<Int>) {}<!>
}