diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt
index a4873eb2716..282c74d4d0f 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt
@@ -48,7 +48,8 @@ import java.util.*
 
 internal val LOG = Logger.getInstance(IdeaModuleInfo::class.java)
 
-interface IdeaModuleInfo : ModuleInfo {
+@Suppress("DEPRECATION_ERROR")
+interface IdeaModuleInfo : org.jetbrains.kotlin.idea.caches.resolve.IdeaModuleInfo {
     fun contentScope(): GlobalSearchScope
 
     val moduleOrigin: ModuleOrigin
@@ -179,9 +180,9 @@ data class ModuleProductionSourceInfo internal constructor(
 }
 
 //TODO: (module refactoring) do not create ModuleTestSourceInfo when there are no test roots for module
-data class ModuleTestSourceInfo internal constructor(
-    override val module: Module
-) : ModuleSourceInfoWithExpectedBy(forProduction = false) {
+@Suppress("DEPRECATION_ERROR")
+data class ModuleTestSourceInfo internal constructor(override val module: Module) :
+    ModuleSourceInfoWithExpectedBy(forProduction = false), org.jetbrains.kotlin.idea.caches.resolve.ModuleTestSourceInfo {
 
     override val name = Name.special("<test sources for module ${module.name}>")
 
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/KotlinCacheServiceImpl.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/KotlinCacheServiceImpl.kt
index 79c16e2feb0..8f55538c9e0 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/KotlinCacheServiceImpl.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/KotlinCacheServiceImpl.kt
@@ -36,6 +36,7 @@ import org.jetbrains.kotlin.context.GlobalContext
 import org.jetbrains.kotlin.context.GlobalContextImpl
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.idea.caches.project.*
+import org.jetbrains.kotlin.idea.caches.project.IdeaModuleInfo
 import org.jetbrains.kotlin.idea.caches.resolve.util.contextWithNewLockAndCompositeExceptionTracker
 import org.jetbrains.kotlin.idea.compiler.IDELanguageSettingsProvider
 import org.jetbrains.kotlin.idea.core.script.ScriptDependenciesModificationTracker
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ModuleTestSourceInfo.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ModuleTestSourceInfo.kt
new file mode 100644
index 00000000000..8c797c4826c
--- /dev/null
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ModuleTestSourceInfo.kt
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+@file:JvmName("GetModuleInfoKt")
+@file:Suppress("DEPRECATION_ERROR")
+
+package org.jetbrains.kotlin.idea.caches.resolve
+
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.analyzer.ModuleInfo
+import org.jetbrains.kotlin.idea.caches.project.getNullableModuleInfo as getNullableModuleInfoNew
+
+@Deprecated(
+    "Temporary interface to support binary compatibility in other plugins. " +
+            "Works only for instanceof check. Will be removed in Kotlin plugin bundled to 2018.2.",
+    ReplaceWith("org.jetbrains.kotlin.idea.caches.project.ModuleTestSourceInfo"),
+    level = DeprecationLevel.ERROR
+)
+interface IdeaModuleInfo : ModuleInfo
+
+@Deprecated(
+    "Temporary interface to support binary compatibility in other plugins. " +
+            "Works only for instanceof check. Will be removed in Kotlin plugin bundled to 2018.2.",
+    ReplaceWith("org.jetbrains.kotlin.idea.caches.project.ModuleTestSourceInfo"),
+    level = DeprecationLevel.ERROR
+)
+interface ModuleTestSourceInfo : IdeaModuleInfo
+
+@Deprecated(
+    "Temporary function to support binary compatibility after for other plugins after move." +
+            "Will be removed in Kotlin plugin bundled to 2018.2.",
+    ReplaceWith("org.jetbrains.kotlin.idea.caches.project.getNullableModuleInfo"),
+    level = DeprecationLevel.ERROR
+)
+fun PsiElement.getNullableModuleInfo(): IdeaModuleInfo? = getNullableModuleInfoNew()
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ProjectResolutionFacade.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ProjectResolutionFacade.kt
index 4287661d591..b0176d3a9bd 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ProjectResolutionFacade.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ProjectResolutionFacade.kt
@@ -31,6 +31,8 @@ import org.jetbrains.kotlin.context.GlobalContextImpl
 import org.jetbrains.kotlin.context.withProject
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.idea.caches.project.*
+import org.jetbrains.kotlin.idea.caches.project.IdeaModuleInfo
+import org.jetbrains.kotlin.idea.caches.project.getNullableModuleInfo
 import org.jetbrains.kotlin.idea.compiler.IDELanguageSettingsProvider
 import org.jetbrains.kotlin.idea.project.IdeaEnvironment
 import org.jetbrains.kotlin.load.java.structure.JavaClass
diff --git a/idea/tests/org/jetbrains/kotlin/idea/caches/resolve/IdeaModuleInfoTest.kt b/idea/tests/org/jetbrains/kotlin/idea/caches/resolve/IdeaModuleInfoTest.kt
index 24bc81b16fc..080befdc306 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/caches/resolve/IdeaModuleInfoTest.kt
+++ b/idea/tests/org/jetbrains/kotlin/idea/caches/resolve/IdeaModuleInfoTest.kt
@@ -33,6 +33,8 @@ import com.intellij.testFramework.PsiTestUtil
 import com.intellij.testFramework.UsefulTestCase
 import org.jetbrains.kotlin.codegen.forTestCompile.ForTestCompileRuntime
 import org.jetbrains.kotlin.idea.caches.project.*
+import org.jetbrains.kotlin.idea.caches.project.IdeaModuleInfo
+import org.jetbrains.kotlin.idea.caches.project.ModuleTestSourceInfo
 import org.jetbrains.kotlin.idea.framework.CommonLibraryKind
 import org.jetbrains.kotlin.idea.framework.JSLibraryKind
 import org.jetbrains.kotlin.idea.test.PluginTestCaseBase.*