kotlin-fork/idea/idea-completion/testData/basic/common/substitutedSignature/SubstitutedSignature6.kt

fun<T> T.doSomething(t: T): T = t

fun foo(s: String?) {
    s?.<caret>
}

// EXIST: { itemText: "doSomething", tailText: "(t: String) for T in <root>", typeText: "String" }