idea/testData/diagnosticMessage/functionPlaceholder.kt

// !DIAGNOSTICS_NUMBER: 3
// !DIAGNOSTICS: TYPE_INFERENCE_PARAMETER_CONSTRAINT_ERROR

class A<T, R>
fun <T, R> foo(a: A<T, R>) = a

fun test() {
    foo { it }
    foo { x -> x}
    foo { x: Int -> x}
}