Report deprecation on typealias companion object for deprecated alias

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/DescriptorDerivedFromTypeAlias.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.descriptors.impl
+
+import org.jetbrains.kotlin.descriptors.TypeAliasDescriptor
+
+interface DescriptorDerivedFromTypeAlias {
+    val typeAliasDescriptor: TypeAliasDescriptor
+}

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/TypeAliasConstructorDescriptor.kt

@@ -24,9 +24,8 @@ import org.jetbrains.kotlin.storage.StorageManager
 import org.jetbrains.kotlin.storage.getValue
 import org.jetbrains.kotlin.types.*
 
-interface TypeAliasConstructorDescriptor : ConstructorDescriptor {
+interface TypeAliasConstructorDescriptor : ConstructorDescriptor, DescriptorDerivedFromTypeAlias {
     val underlyingConstructorDescriptor: ClassConstructorDescriptor
-    val typeAliasDescriptor: TypeAliasDescriptor
 
     override fun getContainingDeclaration(): TypeAliasDescriptor