diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrAnonymousInitializerImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrAnonymousInitializerImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrAnonymousInitializerImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrAnonymousInitializerImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
similarity index 91%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
index d8c153ce5fe..cf04cf4453f 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
+++ b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrConstructorImpl.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -14,8 +14,6 @@ import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrConstructorSymbol
 import org.jetbrains.kotlin.ir.types.IrType
-import org.jetbrains.kotlin.ir.types.impl.IrUninitializedType
-import org.jetbrains.kotlin.ir.types.impl.ReturnTypeIsNotInitializedException
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
 
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrEnumEntryImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrEnumEntryImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrEnumEntryImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrEnumEntryImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFieldImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
similarity index 93%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
index 576d8e3a315..3fb3eb8ebb7 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
+++ b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionImpl.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -16,8 +16,6 @@ import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.types.IrType
-import org.jetbrains.kotlin.ir.types.impl.IrUninitializedType
-import org.jetbrains.kotlin.ir.types.impl.ReturnTypeIsNotInitializedException
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
 
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionWithLateBindingImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionWithLateBindingImpl.kt
similarity index 95%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionWithLateBindingImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionWithLateBindingImpl.kt
index 05c31c11594..4918e92f23c 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionWithLateBindingImpl.kt
+++ b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrFunctionWithLateBindingImpl.kt
@@ -16,8 +16,6 @@ import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.types.IrType
-import org.jetbrains.kotlin.ir.types.impl.IrUninitializedType
-import org.jetbrains.kotlin.ir.types.impl.ReturnTypeIsNotInitializedException
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
 
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrLocalDelegatedPropertyImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrModuleFragmentImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrModuleFragmentImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrModuleFragmentImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrModuleFragmentImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyWithLateBindingImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyWithLateBindingImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyWithLateBindingImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrPropertyWithLateBindingImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrScriptImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrScriptImpl.kt
similarity index 95%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrScriptImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrScriptImpl.kt
index 55b81b98806..35a103e9068 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrScriptImpl.kt
+++ b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrScriptImpl.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.ir.declarations.impl
 import org.jetbrains.kotlin.descriptors.ScriptDescriptor
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
-import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeAliasImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrTypeAliasImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeAliasImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrTypeAliasImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrTypeParameterImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrValueParameterImpl.kt
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt b/compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt
similarity index 100%
rename from compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt
rename to compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/declarations/impl/IrVariableImpl.kt