Update typing rules for class literal expressions.

C::class : KClass<C>
expr: T => expr::class : KClass<out T>

NB: this means Obj::class : KClass<out Obj> for object Obj.

compiler/frontend/src/org/jetbrains/kotlin/types/expressions/DoubleColonExpressionResolver.kt

@@ -92,7 +92,8 @@ class DoubleColonExpressionResolver(
             val type = result?.type
             if (type != null && !type.isError) {
                 checkClassLiteral(c, expression, result)
-                val kClassType = reflectionTypes.getKClassType(Annotations.EMPTY, type)
+                val variance = if (result is DoubleColonLHS.Expression && !result.isObject) Variance.OUT_VARIANCE else Variance.INVARIANT
+                val kClassType = reflectionTypes.getKClassType(Annotations.EMPTY, type, variance)
                 val dataFlowInfo = (result as? DoubleColonLHS.Expression)?.dataFlowInfo ?: c.dataFlowInfo
                 return dataFlowAnalyzer.checkType(createTypeInfo(kClassType, dataFlowInfo), expression, c)
             }