diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrExpressions.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrExpressions.kt
index e9edba4ec28..24f2d12ee1f 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrExpressions.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrExpressions.kt
@@ -5,6 +5,9 @@
 
 package org.jetbrains.kotlin.ir.expressions
 
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
+import org.jetbrains.kotlin.descriptors.PropertyAccessorDescriptor
+import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.declarations.IrValueParameter
 import org.jetbrains.kotlin.ir.declarations.IrVariable
 import org.jetbrains.kotlin.ir.expressions.impl.IrTypeOperatorCallImpl
@@ -64,3 +67,33 @@ fun IrExpression.isUnchanging(): Boolean =
 
 fun IrExpression.hasNoSideEffects(): Boolean =
     isUnchanging() || this is IrGetValue
+
+internal fun IrMemberAccessExpression<*>.throwNoSuchArgumentSlotException(kind: String, index: Int, total: Int): Nothing {
+    throw AssertionError(
+        "No such $kind argument slot in ${this::class.java.simpleName}: $index (total=$total)" +
+                (symbol.signature?.let { ".\nSymbol: $it" } ?: "")
+    )
+}
+
+fun IrMemberAccessExpression<*>.copyTypeArgumentsFrom(other: IrMemberAccessExpression<*>, shift: Int = 0) {
+    assert(typeArgumentsCount == other.typeArgumentsCount + shift) {
+        "Mismatching type arguments: $typeArgumentsCount vs ${other.typeArgumentsCount} + $shift"
+    }
+    for (i in 0 until other.typeArgumentsCount) {
+        putTypeArgument(i + shift, other.getTypeArgument(i))
+    }
+}
+
+val CallableDescriptor.typeParametersCount: Int
+    get() =
+        when (this) {
+            is PropertyAccessorDescriptor -> correspondingProperty.typeParameters.size
+            else -> typeParameters.size
+        }
+
+fun IrMemberAccessExpression<*>.putArgument(callee: IrFunction, parameter: IrValueParameter, argument: IrExpression) =
+    when (parameter) {
+        callee.dispatchReceiverParameter -> dispatchReceiver = argument
+        callee.extensionReceiverParameter -> extensionReceiver = argument
+        else -> putValueArgument(parameter.index, argument)
+    }
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrMemberAccessExpression.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrMemberAccessExpression.kt
index ebe361e66ad..e7944aa1450 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrMemberAccessExpression.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrMemberAccessExpression.kt
@@ -5,16 +5,10 @@
 
 package org.jetbrains.kotlin.ir.expressions
 
-import org.jetbrains.kotlin.descriptors.CallableDescriptor
-import org.jetbrains.kotlin.descriptors.PropertyAccessorDescriptor
-import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
-import org.jetbrains.kotlin.ir.declarations.IrFunction
-import org.jetbrains.kotlin.ir.declarations.IrValueParameter
 import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformer
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
-import org.jetbrains.kotlin.types.KotlinType
 
 // todo: autogenerate
 /**
@@ -80,33 +74,3 @@ abstract class IrMemberAccessExpression<S : IrSymbol> : IrDeclarationReference()
         }
     }
 }
-
-internal fun IrMemberAccessExpression<*>.throwNoSuchArgumentSlotException(kind: String, index: Int, total: Int): Nothing {
-    throw AssertionError(
-        "No such $kind argument slot in ${this::class.java.simpleName}: $index (total=$total)" +
-                (symbol.signature?.let { ".\nSymbol: $it" } ?: "")
-    )
-}
-
-fun IrMemberAccessExpression<*>.copyTypeArgumentsFrom(other: IrMemberAccessExpression<*>, shift: Int = 0) {
-    assert(typeArgumentsCount == other.typeArgumentsCount + shift) {
-        "Mismatching type arguments: $typeArgumentsCount vs ${other.typeArgumentsCount} + $shift"
-    }
-    for (i in 0 until other.typeArgumentsCount) {
-        putTypeArgument(i + shift, other.getTypeArgument(i))
-    }
-}
-
-val CallableDescriptor.typeParametersCount: Int
-    get() =
-        when (this) {
-            is PropertyAccessorDescriptor -> correspondingProperty.typeParameters.size
-            else -> typeParameters.size
-        }
-
-fun IrMemberAccessExpression<*>.putArgument(callee: IrFunction, parameter: IrValueParameter, argument: IrExpression) =
-    when (parameter) {
-        callee.dispatchReceiverParameter -> dispatchReceiver = argument
-        callee.extensionReceiverParameter -> extensionReceiver = argument
-        else -> putValueArgument(parameter.index, argument)
-    }