Do not run write actions from J2K #KT-16714 Fixed

Also #EA-97363 Fixed

Author: mglukhikh

idea/idea-analysis/src/org/jetbrains/kotlin/idea/intentions/SelfTargetingIntention.kt

@@ -20,6 +20,7 @@ import com.intellij.codeInsight.FileModificationService
 import com.intellij.codeInsight.daemon.HighlightDisplayKey
 import com.intellij.codeInsight.intention.IntentionAction
 import com.intellij.codeInspection.LocalInspectionEP
+import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.extensions.Extensions
 import com.intellij.openapi.project.Project
@@ -30,6 +31,7 @@ import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiFile
 import com.intellij.psi.util.PsiTreeUtil
 import org.jetbrains.kotlin.idea.inspections.IntentionBasedInspection
+import org.jetbrains.kotlin.idea.util.application.runWriteAction
 import org.jetbrains.kotlin.psi.KtBlockExpression
 import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.psi.psiUtil.containsInside
@@ -56,6 +58,10 @@ abstract class SelfTargetingIntention<TElement : PsiElement>(
 
     abstract fun applyTo(element: TElement, editor: Editor?)
 
+    protected fun <R> tryRunWriteAction(action: () -> R): R =
+            if (ApplicationManager.getApplication().isDispatchThread) runWriteAction(action)
+            else run(action)
+
     private fun getTarget(editor: Editor, file: PsiFile): TElement? {
         val offset = editor.caretModel.offset
         val leaf1 = file.findElementAt(offset)

idea/src/org/jetbrains/kotlin/idea/intentions/branchedTransformations/intentions/IfThenToElvisIntention.kt

@@ -145,7 +145,7 @@ class IfThenToElvisIntention : SelfTargetingOffsetIndependentIntention<KtIfExpre
                                               it.typeReference!!)
         }
         val checkedExpression = condition.checkedExpression()!!
-        val elvis = runWriteAction {
+        val elvis = tryRunWriteAction {
             val replacedLeft = if (left.evaluatesTo(checkedExpression)) {
                 if (condition is KtIsExpression) newReceiver!! else left
             }

idea/src/org/jetbrains/kotlin/idea/intentions/branchedTransformations/intentions/IfThenToSafeAccessIntention.kt

@@ -67,7 +67,7 @@ class IfThenToSafeAccessIntention : SelfTargetingOffsetIndependentIntention<KtIf
                 }
 
         val newExpr = KtPsiFactory(element).createExpressionByPattern("$0?.$1", receiverExpression, selectorExpression) as KtSafeQualifiedExpression
-        val safeAccessExpr = runWriteAction {
+        val safeAccessExpr = tryRunWriteAction {
             element.replaced(newExpr)
         }