Don't offer to remove empty primary constructor of expect class

idea/src/org/jetbrains/kotlin/idea/intentions/RemoveEmptyPrimaryConstructorIntention.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2016 JetBrains s.r.o.
+ * 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.
@@ -19,9 +19,14 @@ package org.jetbrains.kotlin.idea.intentions
 import com.intellij.codeInspection.CleanupLocalInspectionTool
 import com.intellij.codeInspection.ProblemHighlightType
 import com.intellij.openapi.editor.Editor
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.idea.inspections.IntentionBasedInspection
+import org.jetbrains.kotlin.idea.search.usagesSearch.descriptor
 import org.jetbrains.kotlin.psi.KtPrimaryConstructor
 import org.jetbrains.kotlin.psi.psiUtil.containingClass
+import org.jetbrains.kotlin.psi.psiUtil.containingClassOrObject
+import org.jetbrains.kotlin.psi.psiUtil.hasExpectModifier
+import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 class RemoveEmptyPrimaryConstructorInspection : IntentionBasedInspection<KtPrimaryConstructor>(
         RemoveEmptyPrimaryConstructorIntention::class
@@ -39,6 +44,14 @@ class RemoveEmptyPrimaryConstructorIntention : SelfTargetingOffsetIndependentInt
         element.annotations.isNotEmpty() -> false
         element.modifierList?.text?.isBlank() == false -> false
         element.containingClass()?.secondaryConstructors?.isNotEmpty() == true -> false
+        element.isConstructorOfExpectClass() -> false
         else -> true
     }
+
+    private fun KtPrimaryConstructor.isConstructorOfExpectClass(): Boolean {
+        val containingClass = containingClassOrObject ?: return false
+        if (containingClass.hasExpectModifier()) return true
+
+        return containingClass.descriptor.safeAs<ClassDescriptor>()?.isExpect ?: false
+    }
 }