From 4f916773c25a64e7b562c080363a7de4aaf6d2eb Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Wed, 7 Dec 2016 19:32:00 +0300
Subject: [PATCH] Add missing preparePsiElementForWrite() call

---
 .../jetbrains/kotlin/idea/inspections/RedundantIfInspection.kt  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/idea/src/org/jetbrains/kotlin/idea/inspections/RedundantIfInspection.kt b/idea/src/org/jetbrains/kotlin/idea/inspections/RedundantIfInspection.kt
index 90ebe46cf29..bd84a153485 100644
--- a/idea/src/org/jetbrains/kotlin/idea/inspections/RedundantIfInspection.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/inspections/RedundantIfInspection.kt
@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.idea.inspections
 
+import com.intellij.codeInsight.CodeInsightUtil
 import com.intellij.codeInspection.*
 import com.intellij.openapi.project.Project
 import com.intellij.psi.PsiElementVisitor
@@ -92,6 +93,7 @@ class RedundantIfInspection : AbstractKotlinInspection(), CleanupLocalInspection
 
         override fun applyFix(project: Project, descriptor: ProblemDescriptor) {
             val element = descriptor.psiElement as KtIfExpression
+            if (!CodeInsightUtil.preparePsiElementsForWrite(element)) return
             val condition = when (redundancyType) {
                 RedundancyType.NONE -> return
                 RedundancyType.THEN_TRUE -> element.condition!!