// RUN_PIPELINE_TILL: FRONTEND
fun test() {
    val resultA = pcla { otvOwner ->
        otvOwner.constrain(ScopeOwner())
        // should fix OTv := ScopeOwner for scope navigation
        +otvOwner.provide()
        // expected: Interloper </: ScopeOwner
        otvOwner.constrain(<!ARGUMENT_TYPE_MISMATCH("Interloper; ScopeOwner")!>Interloper<!>)
    }
    // expected: ScopeOwner
    <!DEBUG_INFO_EXPRESSION_TYPE("ScopeOwner")!>resultA<!>

    val resultB = pcla { otvOwner ->
        otvOwner.constrain(ScopeOwner())
        // should fix OTv := ScopeOwner for scope navigation
        -otvOwner.provide()
        // expected: Interloper </: ScopeOwner
        otvOwner.constrain(<!ARGUMENT_TYPE_MISMATCH("Interloper; ScopeOwner")!>Interloper<!>)
    }
    // expected: ScopeOwner
    <!DEBUG_INFO_EXPRESSION_TYPE("ScopeOwner")!>resultB<!>
}


class TypeVariableOwner<T> {
    fun constrain(subtypeValue: T) {}
    fun provide(): T = null!!
}

fun <OT> pcla(lambda: (TypeVariableOwner<OT>) -> Unit): OT = null!!

interface BaseType

class ScopeOwner: BaseType {
    operator fun unaryPlus(): ScopeOwner = this
    operator fun unaryMinus(): ScopeOwner = this
}

object Interloper: BaseType

/* GENERATED_FIR_TAGS: checkNotNullCall, classDeclaration, functionDeclaration, functionalType, interfaceDeclaration,
lambdaLiteral, localProperty, nullableType, objectDeclaration, operator, propertyDeclaration, thisExpression,
typeParameter, unaryExpression */
