diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrDelegatingConstructorCallImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrDelegatingConstructorCallImpl.kt
index 271c52ecd69..59361778f74 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrDelegatingConstructorCallImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrDelegatingConstructorCallImpl.kt
@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.ir.expressions.IrExpression
 import org.jetbrains.kotlin.ir.expressions.IrStatementOrigin
 import org.jetbrains.kotlin.ir.expressions.typeParametersCount
 import org.jetbrains.kotlin.ir.symbols.IrConstructorSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSymbolInternals
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.util.allTypeParameters
 import org.jetbrains.kotlin.ir.util.initializeParameterArguments
@@ -54,6 +55,7 @@ class IrDelegatingConstructorCallImpl(
             valueArgumentsCount: Int = symbol.descriptor.valueParameters.size + symbol.descriptor.contextReceiverParameters.size
         ) = IrDelegatingConstructorCallImpl(startOffset, endOffset, type, symbol, typeArgumentsCount, valueArgumentsCount)
 
+        @IrSymbolInternals
         fun fromSymbolOwner(
             startOffset: Int,
             endOffset: Int,
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/AdditionalIrUtils.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/AdditionalIrUtils.kt
index 1c9fab0601f..57789763db9 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/AdditionalIrUtils.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/AdditionalIrUtils.kt
@@ -10,10 +10,7 @@ import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.ir.*
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
-import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
-import org.jetbrains.kotlin.ir.symbols.IrClassifierSymbol
-import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
-import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.ir.symbols.*
 import org.jetbrains.kotlin.ir.symbols.impl.IrClassPublicSymbolImpl
 import org.jetbrains.kotlin.name.*
 import org.jetbrains.kotlin.resolve.descriptorUtil.module
@@ -315,8 +312,13 @@ fun IrClass.getPropertySetter(name: String): IrSimpleFunctionSymbol? =
     getPropertyDeclaration(name)?.setter?.symbol
         ?: getSimpleFunction("<set-$name>").also { assert(it?.owner?.correspondingPropertySymbol?.owner?.name?.asString() == name) }
 
+@IrSymbolInternals
 fun IrClassSymbol.getSimpleFunction(name: String): IrSimpleFunctionSymbol? = owner.getSimpleFunction(name)
+
+@IrSymbolInternals
 fun IrClassSymbol.getPropertyGetter(name: String): IrSimpleFunctionSymbol? = owner.getPropertyGetter(name)
+
+@IrSymbolInternals
 fun IrClassSymbol.getPropertySetter(name: String): IrSimpleFunctionSymbol? = owner.getPropertySetter(name)
 
 fun filterOutAnnotations(fqName: FqName, annotations: List<IrConstructorCall>): List<IrConstructorCall> {