diff --git a/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/Generator.kt b/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/Generator.kt
index 2f676c78309..cfd541d0b4d 100644
--- a/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/Generator.kt
+++ b/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/Generator.kt
@@ -17,17 +17,10 @@
 package org.jetbrains.kotlin.psi2ir.generators
 
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
-import org.jetbrains.kotlin.ir.builders.*
-import org.jetbrains.kotlin.ir.expressions.IrBlockBody
-import org.jetbrains.kotlin.ir.expressions.IrExpression
-import org.jetbrains.kotlin.ir.expressions.IrStatementOrigin
-import org.jetbrains.kotlin.ir.expressions.impl.IrErrorExpressionImpl
+import org.jetbrains.kotlin.ir.builders.IrGenerator
+import org.jetbrains.kotlin.ir.builders.IrGeneratorWithScope
 import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.psi.KtExpression
-import org.jetbrains.kotlin.psi.psiUtil.endOffset
-import org.jetbrains.kotlin.psi.psiUtil.startOffset
-import org.jetbrains.kotlin.psi2ir.endOffsetOrUndefined
-import org.jetbrains.kotlin.psi2ir.startOffsetOrUndefined
 import org.jetbrains.kotlin.resolve.calls.callUtil.getResolvedCall
 import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
 import org.jetbrains.kotlin.types.KotlinType
@@ -39,8 +32,7 @@ interface Generator : IrGenerator {
     override val context: GeneratorContext
 }
 
-interface GeneratorWithScope : Generator, IrGeneratorWithScope {
-}
+interface GeneratorWithScope : Generator, IrGeneratorWithScope
 
 
 fun <K, V : Any> Generator.get(slice: ReadOnlySlice<K, V>, key: K): V? =
@@ -61,22 +53,3 @@ fun Generator.getInferredTypeWithImplicitCastsOrFail(key: KtExpression): KotlinT
 fun Generator.getResolvedCall(key: KtElement): ResolvedCall<out CallableDescriptor>? =
     key.getResolvedCall(context.bindingContext)
 
-fun Generator.createDummyExpression(ktExpression: KtExpression, description: String): IrErrorExpressionImpl =
-    IrErrorExpressionImpl(
-        ktExpression.startOffset,
-        ktExpression.endOffset,
-        getInferredTypeWithImplicitCastsOrFail(ktExpression),
-        description
-    )
-
-inline fun GeneratorWithScope.irBlock(
-    ktElement: KtElement?,
-    origin: IrStatementOrigin? = null, resultType: KotlinType? = null,
-    body: IrBlockBuilder.() -> Unit
-): IrExpression =
-    this.irBlock(ktElement.startOffsetOrUndefined, ktElement.endOffsetOrUndefined, origin, resultType, body)
-
-inline fun GeneratorWithScope.irBlockBody(ktElement: KtElement?, body: IrBlockBodyBuilder.() -> Unit): IrBlockBody =
-    this.irBlockBody(ktElement.startOffsetOrUndefined, ktElement.endOffsetOrUndefined, body)
-
-