Rename: Fix exception on property rename preview

(cherry picked from commit 7b54ad0)

idea/src/org/jetbrains/kotlin/idea/findUsages/KotlinElementDescriptionProvider.kt

@@ -32,6 +32,7 @@ import org.jetbrains.kotlin.descriptors.ConstructorDescriptor
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
 import org.jetbrains.kotlin.idea.KotlinLanguage
 import org.jetbrains.kotlin.idea.refactoring.rename.RenameJavaSyntheticPropertyHandler
+import org.jetbrains.kotlin.idea.refactoring.rename.RenameKotlinPropertyProcessor
 import org.jetbrains.kotlin.idea.search.usagesSearch.descriptor
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.resolve.DescriptorUtils
@@ -52,6 +53,7 @@ class KotlinElementDescriptionProvider : ElementDescriptionProvider {
             is KtDestructuringDeclarationEntry -> "variable"
             is RenameJavaSyntheticPropertyHandler.SyntheticPropertyWrapper -> "property"
             is KtLightClassForFacade -> "facade class"
+            is RenameKotlinPropertyProcessor.PropertyMethodWrapper -> "property accessor"
             else -> null
         }
 

idea/src/org/jetbrains/kotlin/idea/refactoring/rename/RenameKotlinPropertyProcessor.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.idea.refactoring.rename
 
+import com.intellij.navigation.NavigationItem
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.ui.Messages
@@ -249,6 +250,12 @@ class RenameKotlinPropertyProcessor : RenameKotlinPsiProcessor() {
         return declarationToRename
     }
 
+    class PropertyMethodWrapper(val propertyMethod: PsiMethod) : PsiNamedElement by propertyMethod, NavigationItem by propertyMethod {
+        override fun getName() = propertyMethod.name
+        override fun setName(name: String) = this
+        override fun copy() = this
+    }
+
     override fun prepareRenaming(element: PsiElement, newName: String?, allRenames: MutableMap<PsiElement, String>, scope: SearchScope) {
         super.prepareRenaming(element, newName, allRenames, scope)
 
@@ -281,10 +288,7 @@ class RenameKotlinPropertyProcessor : RenameKotlinPsiProcessor() {
 
         for (propertyMethod in propertyMethods) {
             if (element is KtDeclaration && newPropertyName != null) {
-                val wrapper = object : PsiNamedElement by propertyMethod {
-                    override fun setName(name: String) = this
-                    override fun copy() = this
-                }
+                val wrapper = PropertyMethodWrapper(propertyMethod)
                 when {
                     JvmAbi.isGetterName(propertyMethod.name) && getterJvmName == null ->
                         allRenames[wrapper] = JvmAbi.getterName(newPropertyName)