diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/DeepCopyIrTreeWithSymbolsForFakeOverrides.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/DeepCopyIrTreeWithSymbolsForFakeOverrides.kt
similarity index 98%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/DeepCopyIrTreeWithSymbolsForFakeOverrides.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/DeepCopyIrTreeWithSymbolsForFakeOverrides.kt
index c8632396eea..c2fc5ede737 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/DeepCopyIrTreeWithSymbolsForFakeOverrides.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/DeepCopyIrTreeWithSymbolsForFakeOverrides.kt
@@ -1,4 +1,4 @@
-package org.jetbrains.kotlin.backend.common.serialization
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.backend.common.DescriptorsToIrRemapper
 import org.jetbrains.kotlin.backend.common.WrappedDescriptorPatcher
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrideChecker.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideChecker.kt
similarity index 98%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrideChecker.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideChecker.kt
index 3f8bdb4e86e..0c778696575 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrideChecker.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideChecker.kt
@@ -1,4 +1,4 @@
-package org.jetbrains.kotlin.backend.common.override
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
 import org.jetbrains.kotlin.descriptors.ClassKind
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrideCopier.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt
similarity index 98%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrideCopier.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt
index 94e4848b1a1..6394766eef5 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrideCopier.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt
@@ -1,4 +1,4 @@
-package org.jetbrains.kotlin.backend.common.serialization
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
 import org.jetbrains.kotlin.ir.declarations.IrFunction
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrides.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrides.kt
similarity index 98%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrides.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrides.kt
index 8176d6e01e5..13fecd27d5e 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/FakeOverrides.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrides.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.jetbrains.kotlin.backend.common.serialization
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.backend.common.serialization.signature.IdSignatureSerializer
 import org.jetbrains.kotlin.ir.IrElement
@@ -37,6 +37,10 @@ import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.ir.visitors.acceptVoid
 
+interface FakeOverrideBuilder {
+    fun buildFakeOverridesForClass(clazz: IrClass)
+}
+
 interface PlatformFakeOverrideClassFilter {
     fun constructFakeOverrides(clazz: IrClass): Boolean = true
 }
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrOverridingUtil.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrOverridingUtil.kt
similarity index 99%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrOverridingUtil.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrOverridingUtil.kt
index b825e51a975..a7f3ed93363 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrOverridingUtil.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrOverridingUtil.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.jetbrains.kotlin.backend.common.serialization
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
 import org.jetbrains.kotlin.descriptors.Modality
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrTypeCheckerUtils.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrTypeCheckerUtils.kt
similarity index 96%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrTypeCheckerUtils.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrTypeCheckerUtils.kt
index fab6d19a7a4..78285f5c7c3 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrTypeCheckerUtils.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrTypeCheckerUtils.kt
@@ -1,4 +1,4 @@
-package org.jetbrains.kotlin.backend.common.serialization
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrVisibilityUtil.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrVisibilityUtil.kt
similarity index 97%
rename from compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrVisibilityUtil.kt
rename to compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrVisibilityUtil.kt
index e63999a83e9..33a1b173821 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrVisibilityUtil.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/IrVisibilityUtil.kt
@@ -1,4 +1,4 @@
-package org.jetbrains.kotlin.backend.common.serialization
+package org.jetbrains.kotlin.backend.common.overrides
 
 import org.jetbrains.kotlin.backend.common.lower.parents
 import org.jetbrains.kotlin.descriptors.Visibilities
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrFileSerializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrFileSerializer.kt
index e39c9a9fd7d..bf33e24c437 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrFileSerializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrFileSerializer.kt
@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.backend.common.serialization
 
 import org.jetbrains.kotlin.backend.common.LoggingContext
 import org.jetbrains.kotlin.backend.common.ir.ir2string
+import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideControl
 import org.jetbrains.kotlin.backend.common.serialization.encodings.*
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.ir.IrElement
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIrLinker.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIrLinker.kt
index 2465d2efb97..6097cf0629b 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIrLinker.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIrLinker.kt
@@ -7,6 +7,8 @@ package org.jetbrains.kotlin.backend.common.serialization
 
 import org.jetbrains.kotlin.backend.common.LoggingContext
 import org.jetbrains.kotlin.backend.common.ir.isExpect
+import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideBuilderImpl
+import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideControl
 import org.jetbrains.kotlin.backend.common.serialization.encodings.BinarySymbolData
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.impl.EmptyPackageFragmentDescriptor
@@ -662,8 +664,4 @@ enum class DeserializationStrategy(
     EXPLICITLY_EXPORTED(true, true, false, true),
     ONLY_DECLARATION_HEADERS(false, false, false, false),
     WITH_INLINE_BODIES(false, false, false, true)
-}
-
-interface FakeOverrideBuilder {
-    fun buildFakeOverridesForClass(clazz: IrClass)
-}
+}
\ No newline at end of file
diff --git a/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt b/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt
index 7a47731d226..d009323c0a3 100644
--- a/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt
+++ b/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt
@@ -14,8 +14,8 @@ import org.jetbrains.kotlin.backend.common.LoggingContext
 import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
 import org.jetbrains.kotlin.backend.common.extensions.IrPluginContext
 import org.jetbrains.kotlin.backend.common.extensions.IrPluginContextImpl
+import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideChecker
 import org.jetbrains.kotlin.backend.common.serialization.DeserializationStrategy
-import org.jetbrains.kotlin.backend.common.serialization.FakeOverrideChecker
 import org.jetbrains.kotlin.backend.common.serialization.KlibIrVersion
 import org.jetbrains.kotlin.backend.common.serialization.knownBuiltins
 import org.jetbrains.kotlin.backend.common.serialization.mangle.ManglerChecker
diff --git a/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsIrLinker.kt b/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsIrLinker.kt
index f482fa857a9..33927b96b92 100644
--- a/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsIrLinker.kt
+++ b/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsIrLinker.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower.serialization.ir
 
 import org.jetbrains.kotlin.backend.common.LoggingContext
+import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideBuilderImpl
 import org.jetbrains.kotlin.backend.common.serialization.*
 import org.jetbrains.kotlin.backend.common.serialization.signature.IdSignatureSerializer
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
diff --git a/compiler/ir/serialization.jvm/src/org/jetbrains/kotlin/ir/backend/jvm/serialization/JvmIrLinker.kt b/compiler/ir/serialization.jvm/src/org/jetbrains/kotlin/ir/backend/jvm/serialization/JvmIrLinker.kt
index 5f67c1b8a53..bf897c5c0a2 100644
--- a/compiler/ir/serialization.jvm/src/org/jetbrains/kotlin/ir/backend/jvm/serialization/JvmIrLinker.kt
+++ b/compiler/ir/serialization.jvm/src/org/jetbrains/kotlin/ir/backend/jvm/serialization/JvmIrLinker.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.jvm.serialization
 
 import org.jetbrains.kotlin.backend.common.LoggingContext
+import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideBuilderImpl
 import org.jetbrains.kotlin.backend.common.serialization.*
 import org.jetbrains.kotlin.backend.common.serialization.encodings.BinarySymbolData
 import org.jetbrains.kotlin.backend.common.serialization.signature.IdSignatureSerializer