diff --git a/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirJvmBackendExtension.kt b/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirJvmBackendExtension.kt
index 058449161fa..aed3135418d 100644
--- a/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirJvmBackendExtension.kt
+++ b/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirJvmBackendExtension.kt
@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.fir.backend.jvm
 
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmBackendExtension
-import org.jetbrains.kotlin.backend.jvm.codegen.MetadataSerializer
+import org.jetbrains.kotlin.backend.jvm.metadata.MetadataSerializer
 import org.jetbrains.kotlin.codegen.serialization.JvmSerializationBindings
 import org.jetbrains.kotlin.config.JvmAbiStability
 import org.jetbrains.kotlin.fir.FirSession
diff --git a/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirMetadataSerializer.kt b/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirMetadataSerializer.kt
index cf565080bca..f0c3b874aea 100644
--- a/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirMetadataSerializer.kt
+++ b/compiler/fir/fir2ir/jvm-backend/src/org/jetbrains/kotlin/fir/backend/jvm/FirMetadataSerializer.kt
@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.fir.backend.jvm
 
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
-import org.jetbrains.kotlin.backend.jvm.codegen.MetadataSerializer
+import org.jetbrains.kotlin.backend.jvm.metadata.MetadataSerializer
 import org.jetbrains.kotlin.codegen.serialization.JvmSerializationBindings
 import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.backend.Fir2IrComponents
diff --git a/compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/JvmStringConcatenationLowering.kt b/compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/JvmStringConcatenationLowering.kt
index ccc78dab7ed..feae62c6a2d 100644
--- a/compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/JvmStringConcatenationLowering.kt
+++ b/compiler/ir/backend.jvm/lower/src/org/jetbrains/kotlin/backend/jvm/lower/JvmStringConcatenationLowering.kt
@@ -13,9 +13,9 @@ import org.jetbrains.kotlin.backend.common.lower.loops.forLoopsPhase
 import org.jetbrains.kotlin.backend.common.phaser.makeIrFilePhase
 import org.jetbrains.kotlin.backend.jvm.InlineClassAbi
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
-import org.jetbrains.kotlin.backend.jvm.codegen.representativeUpperBound
 import org.jetbrains.kotlin.backend.jvm.ir.JvmIrBuilder
 import org.jetbrains.kotlin.backend.jvm.ir.createJvmIrBuilder
+import org.jetbrains.kotlin.backend.jvm.ir.representativeUpperBound
 import org.jetbrains.kotlin.ir.builders.*
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.*
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendContext.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendContext.kt
index 764c615d724..44e5fd73476 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendContext.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendContext.kt
@@ -13,7 +13,6 @@ import org.jetbrains.kotlin.backend.common.ir.Ir
 import org.jetbrains.kotlin.backend.common.phaser.PhaseConfig
 import org.jetbrains.kotlin.backend.jvm.caches.BridgeLoweringCache
 import org.jetbrains.kotlin.backend.jvm.caches.CollectionStubComputer
-import org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen
 import org.jetbrains.kotlin.backend.jvm.codegen.IrTypeMapper
 import org.jetbrains.kotlin.backend.jvm.codegen.MethodSignatureMapper
 import org.jetbrains.kotlin.backend.jvm.intrinsics.IrIntrinsicMethods
@@ -89,7 +88,11 @@ class JvmBackendContext(
 
     val isEnclosedInConstructor = ConcurrentHashMap.newKeySet<IrAttributeContainer>()
 
-    internal val classCodegens = ConcurrentHashMap<IrClass, ClassCodegen>()
+    private val classCodegens = ConcurrentHashMap<IrClass, Any>()
+
+    @Suppress("UNCHECKED_CAST")
+    fun <ClassCodegen : Any> getOrCreateClassCodegen(klass: IrClass, create: (IrClass) -> ClassCodegen): ClassCodegen =
+        classCodegens.computeIfAbsent(klass, create) as ClassCodegen
 
     val localDelegatedProperties = ConcurrentHashMap<IrAttributeContainer, List<IrLocalDelegatedPropertySymbol>>()
 
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendExtension.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendExtension.kt
index 6f8185c9a9a..841365932f2 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendExtension.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendExtension.kt
@@ -5,8 +5,8 @@
 
 package org.jetbrains.kotlin.backend.jvm
 
-import org.jetbrains.kotlin.backend.jvm.codegen.DescriptorMetadataSerializer
-import org.jetbrains.kotlin.backend.jvm.codegen.MetadataSerializer
+import org.jetbrains.kotlin.backend.jvm.metadata.DescriptorMetadataSerializer
+import org.jetbrains.kotlin.backend.jvm.metadata.MetadataSerializer
 import org.jetbrains.kotlin.codegen.serialization.JvmSerializationBindings
 import org.jetbrains.kotlin.config.JvmAbiStability
 import org.jetbrains.kotlin.ir.declarations.IrClass
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmCachedDeclarations.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmCachedDeclarations.kt
index fab7fc2361a..ca117002c54 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmCachedDeclarations.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmCachedDeclarations.kt
@@ -7,7 +7,6 @@ package org.jetbrains.kotlin.backend.jvm
 
 import org.jetbrains.kotlin.backend.common.ir.*
 import org.jetbrains.kotlin.backend.common.lower.createIrBuilder
-import org.jetbrains.kotlin.backend.jvm.codegen.AnnotationCodegen.Companion.annotationClass
 import org.jetbrains.kotlin.backend.jvm.ir.copyCorrespondingPropertyFrom
 import org.jetbrains.kotlin.backend.jvm.ir.createJvmIrBuilder
 import org.jetbrains.kotlin.backend.jvm.ir.isJvmInterface
@@ -223,7 +222,7 @@ class JvmCachedDeclarations(
                 if (forCompatibilityMode && !interfaceFun.resolveFakeOverride()!!.origin.isSynthetic) {
                     context.createJvmIrBuilder(it.symbol).run {
                         it.annotations = it.annotations
-                            .filterNot { it.annotationClass.hasEqualFqName(DeprecationResolver.JAVA_DEPRECATED) }
+                            .filterNot { it.symbol.owner.constructedClass.hasEqualFqName(DeprecationResolver.JAVA_DEPRECATED) }
                             .plus(irCall(irSymbols.javaLangDeprecatedConstructorWithDeprecatedFlag))
                     }
                 }
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmSymbols.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmSymbols.kt
index 20461637340..2e00beaeb44 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmSymbols.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmSymbols.kt
@@ -10,7 +10,6 @@ package org.jetbrains.kotlin.backend.jvm
 import org.jetbrains.kotlin.backend.common.ir.Symbols
 import org.jetbrains.kotlin.backend.common.ir.addChild
 import org.jetbrains.kotlin.backend.common.ir.createImplicitParameterDeclarationWithWrappedDescriptor
-import org.jetbrains.kotlin.backend.jvm.intrinsics.IrIntrinsicMethods
 import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.codegen.coroutines.INVOKE_SUSPEND_METHOD_NAME
 import org.jetbrains.kotlin.codegen.coroutines.SUSPEND_CALL_RESULT_NAME
@@ -113,7 +112,7 @@ class JvmSymbols(
         }.symbol
 
     private val intrinsicsClass: IrClassSymbol = createClass(
-        JvmClassName.byInternalName(IrIntrinsicMethods.INTRINSICS_CLASS_NAME).fqNameForTopLevelClassMaybeWithDollars
+        JvmClassName.byInternalName(INTRINSICS_CLASS_NAME).fqNameForTopLevelClassMaybeWithDollars
     ) { klass ->
         klass.addFunction("throwNullPointerException", irBuiltIns.nothingType, isStatic = true).apply {
             addValueParameter("message", irBuiltIns.stringType)
@@ -1112,6 +1111,8 @@ class JvmSymbols(
     }
 
     companion object {
+        const val INTRINSICS_CLASS_NAME = "kotlin/jvm/internal/Intrinsics"
+
         val FLEXIBLE_NULLABILITY_ANNOTATION_FQ_NAME =
             IrBuiltIns.KOTLIN_INTERNAL_IR_FQN.child(Name.identifier("FlexibleNullability"))
 
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/MemoizedInlineClassReplacements.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/MemoizedInlineClassReplacements.kt
index f929bc1e666..0ec3bba6f75 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/MemoizedInlineClassReplacements.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/MemoizedInlineClassReplacements.kt
@@ -9,12 +9,7 @@ import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.backend.common.ir.copyTypeParameters
 import org.jetbrains.kotlin.backend.common.ir.copyTypeParametersFrom
 import org.jetbrains.kotlin.backend.common.ir.createDispatchReceiverParameter
-import org.jetbrains.kotlin.backend.jvm.codegen.classFileContainsMethod
-import org.jetbrains.kotlin.backend.jvm.codegen.extensionReceiverName
-import org.jetbrains.kotlin.backend.jvm.ir.isCompiledToJvmDefault
-import org.jetbrains.kotlin.backend.jvm.ir.isJvmInterface
-import org.jetbrains.kotlin.backend.jvm.ir.isStaticInlineClassReplacement
-import org.jetbrains.kotlin.backend.jvm.ir.parentClassId
+import org.jetbrains.kotlin.backend.jvm.ir.*
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.descriptors.Modality
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ClassCodegen.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ClassCodegen.kt
index 843b2dd30e3..586f7a8864a 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ClassCodegen.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ClassCodegen.kt
@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
 import org.jetbrains.kotlin.backend.jvm.MultifileFacadeFileEntry
 import org.jetbrains.kotlin.backend.jvm.ir.*
+import org.jetbrains.kotlin.backend.jvm.metadata.MetadataSerializer
 import org.jetbrains.kotlin.codegen.DescriptorAsmUtil
 import org.jetbrains.kotlin.codegen.VersionIndependentOpcodes
 import org.jetbrains.kotlin.codegen.addRecordComponent
@@ -40,13 +41,11 @@ import org.jetbrains.kotlin.ir.util.*
 import org.jetbrains.kotlin.load.java.JvmAnnotationNames
 import org.jetbrains.kotlin.load.kotlin.header.KotlinClassHeader
 import org.jetbrains.kotlin.metadata.jvm.deserialization.BitEncoding
-import org.jetbrains.kotlin.metadata.jvm.serialization.JvmStringTable
 import org.jetbrains.kotlin.name.JvmNames.JVM_RECORD_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.name.JvmNames.JVM_SYNTHETIC_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.name.JvmNames.TRANSIENT_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.name.JvmNames.VOLATILE_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.protobuf.MessageLite
 import org.jetbrains.kotlin.resolve.jvm.checkers.JvmSimpleNameBacktickChecker
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.*
 import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmClassSignature
@@ -57,13 +56,6 @@ import org.jetbrains.org.objectweb.asm.*
 import org.jetbrains.org.objectweb.asm.commons.Method
 import java.io.File
 
-interface MetadataSerializer {
-    fun serialize(metadata: MetadataSource): Pair<MessageLite, JvmStringTable>?
-    fun bindPropertyMetadata(metadata: MetadataSource.Property, signature: Method, origin: IrDeclarationOrigin)
-    fun bindMethodMetadata(metadata: MetadataSource.Function, signature: Method)
-    fun bindFieldMetadata(metadata: MetadataSource.Property, signature: Pair<Type, String>)
-}
-
 class ClassCodegen private constructor(
     val irClass: IrClass,
     val context: JvmBackendContext,
@@ -545,7 +537,7 @@ class ClassCodegen private constructor(
                 it.origin == JvmLoweredDeclarationOrigin.CLASS_STATIC_INITIALIZER
             },
         ): ClassCodegen =
-            context.classCodegens.computeIfAbsent(irClass) { ClassCodegen(irClass, context, parentFunction) }.also {
+            context.getOrCreateClassCodegen(irClass) { ClassCodegen(irClass, context, parentFunction) }.also {
                 assert(parentFunction == null || it.parentFunction == parentFunction) {
                     "inconsistent parent function for ${irClass.render()}:\n" +
                             "New: ${parentFunction!!.render()}\n" +
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/CoroutineCodegen.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/CoroutineCodegen.kt
index 60dd3172ff2..ac27032fbf4 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/CoroutineCodegen.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/CoroutineCodegen.kt
@@ -9,10 +9,7 @@ import org.jetbrains.kotlin.backend.common.CodegenUtil
 import org.jetbrains.kotlin.backend.common.ir.allOverridden
 import org.jetbrains.kotlin.backend.jvm.InlineClassAbi
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
-import org.jetbrains.kotlin.backend.jvm.ir.erasedUpperBound
-import org.jetbrains.kotlin.backend.jvm.ir.hasContinuation
-import org.jetbrains.kotlin.backend.jvm.ir.isReadOfCrossinline
-import org.jetbrains.kotlin.backend.jvm.ir.suspendFunctionOriginal
+import org.jetbrains.kotlin.backend.jvm.ir.*
 import org.jetbrains.kotlin.backend.jvm.unboxInlineClass
 import org.jetbrains.kotlin.codegen.ClassBuilder
 import org.jetbrains.kotlin.codegen.coroutines.CoroutineTransformerMethodVisitor
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt
index 71d14b5f5b8..891bb7da1c6 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt
@@ -326,7 +326,7 @@ class ExpressionCodegen(
             mv.load(findLocalIndex(param.symbol), asmType)
             mv.aconst(param.name.asString())
             val methodName = if (state.unifiedNullChecks) "checkNotNullParameter" else "checkParameterIsNotNull"
-            mv.invokestatic(IrIntrinsicMethods.INTRINSICS_CLASS_NAME, methodName, "(Ljava/lang/Object;Ljava/lang/String;)V", false)
+            mv.invokestatic(JvmSymbols.INTRINSICS_CLASS_NAME, methodName, "(Ljava/lang/Object;Ljava/lang/String;)V", false)
         }
     }
 
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/FunctionCodegen.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/FunctionCodegen.kt
index 6dc0f6cdc66..dc5f94e13bb 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/FunctionCodegen.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/FunctionCodegen.kt
@@ -11,12 +11,12 @@ import org.jetbrains.kotlin.backend.common.lower.BOUND_RECEIVER_PARAMETER
 import org.jetbrains.kotlin.backend.common.lower.BOUND_VALUE_PARAMETER
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
+import org.jetbrains.kotlin.backend.jvm.ir.extensionReceiverName
 import org.jetbrains.kotlin.backend.jvm.ir.isJvmInterface
 import org.jetbrains.kotlin.backend.jvm.ir.isReifiable
 import org.jetbrains.kotlin.backend.jvm.ir.suspendFunctionOriginal
 import org.jetbrains.kotlin.codegen.AsmUtil
 import org.jetbrains.kotlin.codegen.inline.*
-import org.jetbrains.kotlin.codegen.mangleNameIfNeeded
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.codegen.visitAnnotableParameterCount
 import org.jetbrains.kotlin.config.LanguageFeature
@@ -30,7 +30,6 @@ import org.jetbrains.kotlin.load.java.JavaDescriptorVisibilities
 import org.jetbrains.kotlin.name.JvmNames.JVM_SYNTHETIC_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.name.JvmNames.STRICTFP_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.name.JvmNames.SYNCHRONIZED_ANNOTATION_FQ_NAME
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.annotations.JVM_THROWS_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodParameterKind
 import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodSignature
@@ -359,20 +358,3 @@ private fun generateParameterNames(irFunction: IrFunction, mv: MethodVisitor, st
         mv.visitParameter(irParameter.name.asString(), access)
     }
 }
-
-internal fun IrFunction.extensionReceiverName(state: GenerationState): String {
-    if (!state.languageVersionSettings.supportsFeature(LanguageFeature.NewCapturedReceiverFieldNamingConvention)) {
-        return AsmUtil.RECEIVER_PARAMETER_NAME
-    }
-
-    extensionReceiverParameter?.let {
-        if (it.name.asString().startsWith(AsmUtil.LABELED_THIS_PARAMETER)) {
-            return it.name.asString()
-        }
-    }
-    val callableName = (this as? IrSimpleFunction)?.correspondingPropertySymbol?.owner?.name ?: name
-    return if (callableName.isSpecial || !Name.isValidIdentifier(callableName.asString()))
-        AsmUtil.RECEIVER_PARAMETER_NAME
-    else
-        AsmUtil.LABELED_THIS_PARAMETER + mangleNameIfNeeded(callableName.asString())
-}
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrInlineCallGenerator.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrInlineCallGenerator.kt
index 20b46ed933b..10c03ae67c0 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrInlineCallGenerator.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrInlineCallGenerator.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.backend.jvm.codegen
 
 import org.jetbrains.kotlin.backend.common.psi.PsiSourceManager
+import org.jetbrains.kotlin.backend.jvm.ir.psiElement
 import org.jetbrains.kotlin.backend.jvm.ir.suspendFunctionOriginal
 import org.jetbrains.kotlin.codegen.AsmUtil
 import org.jetbrains.kotlin.ir.descriptors.toIrBasedDescriptor
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrSourceCompilerForInline.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrSourceCompilerForInline.kt
index 3c2f26435c7..7974a87e22e 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrSourceCompilerForInline.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrSourceCompilerForInline.kt
@@ -9,10 +9,7 @@ import com.intellij.openapi.util.TextRange
 import org.jetbrains.kotlin.backend.common.CodegenUtil
 import org.jetbrains.kotlin.backend.common.ir.ir2string
 import org.jetbrains.kotlin.backend.jvm.hasMangledReturnType
-import org.jetbrains.kotlin.backend.jvm.ir.fileParent
-import org.jetbrains.kotlin.backend.jvm.ir.getKtFile
-import org.jetbrains.kotlin.backend.jvm.ir.inlineScopeVisibility
-import org.jetbrains.kotlin.backend.jvm.ir.parentClassId
+import org.jetbrains.kotlin.backend.jvm.ir.*
 import org.jetbrains.kotlin.codegen.inline.*
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.diagnostics.DiagnosticUtils
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapper.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapper.kt
index 6d53e74ae8f..5b5247adbb5 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapper.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapper.kt
@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.backend.jvm.codegen
 
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
+import org.jetbrains.kotlin.backend.jvm.ir.representativeUpperBound
 import org.jetbrains.kotlin.builtins.functions.BuiltInFunctionArity
 import org.jetbrains.kotlin.codegen.AsmUtil
 import org.jetbrains.kotlin.codegen.JvmCodegenUtil
@@ -35,7 +36,7 @@ import org.jetbrains.kotlin.types.model.SimpleTypeMarker
 import org.jetbrains.kotlin.types.model.TypeConstructorMarker
 import org.jetbrains.kotlin.types.model.TypeParameterMarker
 import org.jetbrains.org.objectweb.asm.Type
-import org.jetbrains.kotlin.backend.jvm.codegen.isRawType as isRawTypeImpl
+import org.jetbrains.kotlin.backend.jvm.ir.isRawType as isRawTypeImpl
 import org.jetbrains.kotlin.ir.types.isKClass as isKClassImpl
 import org.jetbrains.kotlin.ir.util.isSuspendFunction as isSuspendFunctionImpl
 
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapping.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapping.kt
index be1802deba6..84054c96add 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapping.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/IrTypeMapping.kt
@@ -7,14 +7,19 @@ package org.jetbrains.kotlin.backend.jvm.codegen
 
 import org.jetbrains.kotlin.builtins.jvm.JavaToKotlinClassMap
 import org.jetbrains.kotlin.codegen.signature.JvmSignatureWriter
-import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
-import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.declarations.IrClass
+import org.jetbrains.kotlin.ir.declarations.IrField
+import org.jetbrains.kotlin.ir.declarations.IrValueParameter
+import org.jetbrains.kotlin.ir.declarations.IrVariable
 import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.IrTypeArgument
 import org.jetbrains.kotlin.ir.types.classOrNull
-import org.jetbrains.kotlin.ir.util.*
+import org.jetbrains.kotlin.ir.util.defaultType
+import org.jetbrains.kotlin.ir.util.fqNameWhenAvailable
+import org.jetbrains.kotlin.ir.util.parentAsClass
+import org.jetbrains.kotlin.ir.util.render
 import org.jetbrains.kotlin.load.kotlin.TypeMappingMode
 import org.jetbrains.kotlin.name.SpecialNames
 import org.jetbrains.org.objectweb.asm.Type
@@ -76,13 +81,3 @@ private fun IrSimpleType.buildPossiblyInnerType(classifier: IrClass?, index: Int
         buildPossiblyInnerType(classifier.parentAsClass, toIndex)
     )
 }
-
-val IrTypeParameter.representativeUpperBound: IrType
-    get() {
-        assert(superTypes.isNotEmpty()) { "Upper bounds should not be empty: ${render()}" }
-
-        return superTypes.firstOrNull {
-            val irClass = it.classOrNull?.owner ?: return@firstOrNull false
-            irClass.kind != ClassKind.INTERFACE && irClass.kind != ClassKind.ANNOTATION_CLASS
-        } ?: superTypes.first()
-    }
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/irCodegenUtils.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/irCodegenUtils.kt
index 054a5baf904..0f1f2413c75 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/irCodegenUtils.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/irCodegenUtils.kt
@@ -10,7 +10,6 @@ import org.jetbrains.kotlin.backend.common.ir.allOverridden
 import org.jetbrains.kotlin.backend.common.ir.ir2string
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
-import org.jetbrains.kotlin.backend.jvm.JvmSymbols
 import org.jetbrains.kotlin.backend.jvm.MultifileFacadeFileEntry
 import org.jetbrains.kotlin.backend.jvm.ir.fileParent
 import org.jetbrains.kotlin.backend.jvm.ir.isInlineOnly
@@ -76,9 +75,6 @@ fun IrFrameMap.leave(irDeclaration: IrSymbolOwner): Int {
     return leave(irDeclaration.symbol)
 }
 
-internal val DeclarationDescriptorWithSource.psiElement: PsiElement?
-    get() = (source as? PsiSourceElement)?.psi
-
 fun JvmBackendContext.getSourceMapper(declaration: IrClass): SourceMapper {
     val fileEntry = declaration.fileParent.fileEntry
     // NOTE: apparently inliner requires the source range to cover the
@@ -331,24 +327,3 @@ private fun IrFunction.isAccessorForDeprecatedJvmStaticProperty(context: JvmBack
     val property = callee.correspondingPropertySymbol?.owner ?: return false
     return property.isDeprecatedCallable(context)
 }
-
-@OptIn(ObsoleteDescriptorBasedAPI::class)
-val IrDeclaration.psiElement: PsiElement?
-    get() = (descriptor as? DeclarationDescriptorWithSource)?.psiElement
-
-@OptIn(ObsoleteDescriptorBasedAPI::class)
-val IrMemberAccessExpression<*>.psiElement: PsiElement?
-    get() = (symbol.descriptor.original as? DeclarationDescriptorWithSource)?.psiElement
-
-fun IrSimpleType.isRawType(): Boolean =
-    hasAnnotation(JvmSymbols.RAW_TYPE_ANNOTATION_FQ_NAME)
-
-internal fun classFileContainsMethod(classId: ClassId, function: IrFunction, context: JvmBackendContext): Boolean? {
-    val originalSignature = context.methodSignatureMapper.mapAsmMethod(function)
-    val originalDescriptor = originalSignature.descriptor
-    val descriptor = if (function.isSuspend)
-        listOf(*Type.getArgumentTypes(originalDescriptor), Type.getObjectType("kotlin/coroutines/Continuation"))
-            .joinToString(prefix = "(", postfix = ")", separator = "") + AsmTypes.OBJECT_TYPE
-    else originalDescriptor
-    return classFileContainsMethod(classId, context.state, Method(originalSignature.name, descriptor))
-}
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/CompareTo.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/CompareTo.kt
index bdf41734e32..8f651932339 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/CompareTo.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/CompareTo.kt
@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.backend.jvm.intrinsics
 
 import com.intellij.psi.tree.IElementType
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
+import org.jetbrains.kotlin.backend.jvm.JvmSymbols
 import org.jetbrains.kotlin.backend.jvm.codegen.*
 import org.jetbrains.kotlin.backend.jvm.ir.isSmartcastFromHigherThanNullable
 import org.jetbrains.kotlin.backend.jvm.ir.receiverAndArgs
@@ -42,12 +43,12 @@ object CompareTo : IntrinsicMethod() {
         when (type) {
             Type.CHAR_TYPE, Type.BYTE_TYPE, Type.SHORT_TYPE, Type.INT_TYPE ->
                 v.invokestatic(
-                    IrIntrinsicMethods.INTRINSICS_CLASS_NAME,
+                    JvmSymbols.INTRINSICS_CLASS_NAME,
                     "compare",
                     "(II)I",
                     false
                 )
-            Type.LONG_TYPE -> v.invokestatic(IrIntrinsicMethods.INTRINSICS_CLASS_NAME, "compare", "(JJ)I", false)
+            Type.LONG_TYPE -> v.invokestatic(JvmSymbols.INTRINSICS_CLASS_NAME, "compare", "(JJ)I", false)
             Type.FLOAT_TYPE -> v.invokestatic("java/lang/Float", "compare", "(FF)I", false)
             Type.DOUBLE_TYPE -> v.invokestatic("java/lang/Double", "compare", "(DD)I", false)
             else -> throw UnsupportedOperationException()
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/IrIntrinsicMethods.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/IrIntrinsicMethods.kt
index ccfd4f41603..6e8afe0b6c4 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/IrIntrinsicMethods.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/IrIntrinsicMethods.kt
@@ -201,8 +201,6 @@ class IrIntrinsicMethods(val irBuiltIns: IrBuiltIns, val symbols: JvmSymbols) {
     data class Key(val owner: FqName, val receiverParameterTypeName: FqName?, val name: String, val valueParameterTypeNames: List<FqName?>)
 
     companion object {
-
-        internal const val INTRINSICS_CLASS_NAME = "kotlin/jvm/internal/Intrinsics"
         private val INC = Increment(1)
 
         private val DEC = Increment(-1)
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/IrJvmFlexibleType.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/IrJvmFlexibleType.kt
index 70213c56c13..f20f6f4f1e2 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/IrJvmFlexibleType.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/IrJvmFlexibleType.kt
@@ -6,10 +6,9 @@
 package org.jetbrains.kotlin.backend.jvm.ir
 
 import org.jetbrains.kotlin.backend.jvm.JvmSymbols
-import org.jetbrains.kotlin.backend.jvm.codegen.isRawType
 import org.jetbrains.kotlin.builtins.StandardNames
-import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.IrBuiltIns
+import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.classFqName
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrTypeUtils.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrTypeUtils.kt
index 08c6368d385..ccb2358ca96 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrTypeUtils.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrTypeUtils.kt
@@ -6,8 +6,8 @@
 package org.jetbrains.kotlin.backend.jvm.ir
 
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
-import org.jetbrains.kotlin.backend.jvm.codegen.representativeUpperBound
 import org.jetbrains.kotlin.backend.jvm.unboxInlineClass
+import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrScript
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
@@ -159,3 +159,13 @@ fun collectVisibleTypeParameters(scopeOwner: IrTypeParametersContainer): Set<IrT
 
 val IrType.isReifiedTypeParameter: Boolean
     get() = classifierOrNull?.safeAs<IrTypeParameterSymbol>()?.owner?.isReified == true
+
+val IrTypeParameter.representativeUpperBound: IrType
+    get() {
+        assert(superTypes.isNotEmpty()) { "Upper bounds should not be empty: ${render()}" }
+
+        return superTypes.firstOrNull {
+            val irClass = it.classOrNull?.owner ?: return@firstOrNull false
+            irClass.kind != ClassKind.INTERFACE && irClass.kind != ClassKind.ANNOTATION_CLASS
+        } ?: superTypes.first()
+    }
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrUtils.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrUtils.kt
index 4961690eb73..0cb7faab50d 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrUtils.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/JvmIrUtils.kt
@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.backend.jvm.ir
 
+import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.backend.common.ir.ir2string
 import org.jetbrains.kotlin.backend.common.ir.isMethodOfAny
 import org.jetbrains.kotlin.backend.common.lower.at
@@ -12,17 +13,24 @@ import org.jetbrains.kotlin.backend.common.lower.irNot
 import org.jetbrains.kotlin.backend.jvm.CachedFieldsForObjectInstances
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
+import org.jetbrains.kotlin.backend.jvm.JvmSymbols
 import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.codegen.ASSERTIONS_DISABLED_FIELD_NAME
+import org.jetbrains.kotlin.codegen.AsmUtil
 import org.jetbrains.kotlin.codegen.inline.coroutines.FOR_INLINE_SUFFIX
+import org.jetbrains.kotlin.codegen.mangleNameIfNeeded
+import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.config.JvmDefaultMode
+import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.descriptors.ClassKind
+import org.jetbrains.kotlin.descriptors.DeclarationDescriptorWithSource
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.descriptors.annotations.KotlinRetention
 import org.jetbrains.kotlin.descriptors.deserialization.PLATFORM_DEPENDENT_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.IrElement
+import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.PsiIrFileEntry
 import org.jetbrains.kotlin.ir.builders.IrBuilderWithScope
 import org.jetbrains.kotlin.ir.builders.declarations.buildField
@@ -57,8 +65,12 @@ import org.jetbrains.kotlin.name.JvmNames.JVM_DEFAULT_WITH_COMPATIBILITY_FQ_NAME
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.resolve.DescriptorUtils
+import org.jetbrains.kotlin.resolve.jvm.AsmTypes
 import org.jetbrains.kotlin.resolve.multiplatform.OptionalAnnotationUtil
+import org.jetbrains.kotlin.resolve.source.PsiSourceElement
 import org.jetbrains.kotlin.utils.DFS
+import org.jetbrains.org.objectweb.asm.Type
+import org.jetbrains.org.objectweb.asm.commons.Method
 
 fun IrDeclaration.getJvmNameFromAnnotation(): String? {
     // TODO lower @JvmName?
@@ -256,6 +268,9 @@ private fun JvmBackendContext.makeRawTypeAnnotation() =
 fun IrClass.rawType(context: JvmBackendContext): IrType =
     defaultType.addAnnotations(listOf(context.makeRawTypeAnnotation()))
 
+fun IrSimpleType.isRawType(): Boolean =
+    hasAnnotation(JvmSymbols.RAW_TYPE_ANNOTATION_FQ_NAME)
+
 val IrClass.isJvmInterface: Boolean
     get() = isAnnotationClass || isInterface
 
@@ -459,3 +474,41 @@ fun IrFunctionAccessExpression.receiverAndArgs(): List<IrExpression> {
     return (arrayListOf(this.dispatchReceiver, this.extensionReceiver) +
             symbol.owner.valueParameters.mapIndexed { i, _ -> getValueArgument(i) }).filterNotNull()
 }
+
+fun classFileContainsMethod(classId: ClassId, function: IrFunction, context: JvmBackendContext): Boolean? {
+    val originalSignature = context.methodSignatureMapper.mapAsmMethod(function)
+    val originalDescriptor = originalSignature.descriptor
+    val descriptor = if (function.isSuspend)
+        listOf(*Type.getArgumentTypes(originalDescriptor), Type.getObjectType("kotlin/coroutines/Continuation"))
+            .joinToString(prefix = "(", postfix = ")", separator = "") + AsmTypes.OBJECT_TYPE
+    else originalDescriptor
+    return org.jetbrains.kotlin.codegen.classFileContainsMethod(classId, context.state, Method(originalSignature.name, descriptor))
+}
+
+val DeclarationDescriptorWithSource.psiElement: PsiElement?
+    get() = (source as? PsiSourceElement)?.psi
+
+@OptIn(ObsoleteDescriptorBasedAPI::class)
+val IrDeclaration.psiElement: PsiElement?
+    get() = (descriptor as? DeclarationDescriptorWithSource)?.psiElement
+
+@OptIn(ObsoleteDescriptorBasedAPI::class)
+val IrMemberAccessExpression<*>.psiElement: PsiElement?
+    get() = (symbol.descriptor.original as? DeclarationDescriptorWithSource)?.psiElement
+
+fun IrFunction.extensionReceiverName(state: GenerationState): String {
+    if (!state.languageVersionSettings.supportsFeature(LanguageFeature.NewCapturedReceiverFieldNamingConvention)) {
+        return AsmUtil.RECEIVER_PARAMETER_NAME
+    }
+
+    extensionReceiverParameter?.let {
+        if (it.name.asString().startsWith(AsmUtil.LABELED_THIS_PARAMETER)) {
+            return it.name.asString()
+        }
+    }
+    val callableName = (this as? IrSimpleFunction)?.correspondingPropertySymbol?.owner?.name ?: name
+    return if (callableName.isSpecial || !Name.isValidIdentifier(callableName.asString()))
+        AsmUtil.RECEIVER_PARAMETER_NAME
+    else
+        AsmUtil.LABELED_THIS_PARAMETER + mangleNameIfNeeded(callableName.asString())
+}
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/DescriptorMetadataSerializer.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/metadata/DescriptorMetadataSerializer.kt
similarity index 97%
rename from compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/DescriptorMetadataSerializer.kt
rename to compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/metadata/DescriptorMetadataSerializer.kt
index 66e72995665..6513fff1f5d 100644
--- a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/DescriptorMetadataSerializer.kt
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/metadata/DescriptorMetadataSerializer.kt
@@ -1,12 +1,13 @@
 /*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2021 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.
  */
 
-package org.jetbrains.kotlin.backend.jvm.codegen
+package org.jetbrains.kotlin.backend.jvm.metadata
 
 import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
+import org.jetbrains.kotlin.backend.jvm.codegen.mapClass
 import org.jetbrains.kotlin.codegen.binding.CodegenBinding
 import org.jetbrains.kotlin.codegen.createFreeFakeLambdaDescriptor
 import org.jetbrains.kotlin.codegen.serialization.JvmSerializationBindings
diff --git a/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/metadata/MetadataSerializer.kt b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/metadata/MetadataSerializer.kt
new file mode 100644
index 00000000000..e8c05df68d6
--- /dev/null
+++ b/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/metadata/MetadataSerializer.kt
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2010-2021 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.
+ */
+
+package org.jetbrains.kotlin.backend.jvm.metadata
+
+import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
+import org.jetbrains.kotlin.ir.declarations.MetadataSource
+import org.jetbrains.kotlin.metadata.jvm.serialization.JvmStringTable
+import org.jetbrains.kotlin.protobuf.MessageLite
+import org.jetbrains.org.objectweb.asm.Type
+import org.jetbrains.org.objectweb.asm.commons.Method
+
+interface MetadataSerializer {
+    fun serialize(metadata: MetadataSource): Pair<MessageLite, JvmStringTable>?
+
+    fun bindPropertyMetadata(metadata: MetadataSource.Property, signature: Method, origin: IrDeclarationOrigin)
+
+    fun bindMethodMetadata(metadata: MetadataSource.Function, signature: Method)
+
+    fun bindFieldMetadata(metadata: MetadataSource.Property, signature: Pair<Type, String>)
+}
diff --git a/plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/parcel/ir/IrParcelSerializerFactory.kt b/plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/parcel/ir/IrParcelSerializerFactory.kt
index c21403ca37f..7c7138aa787 100644
--- a/plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/parcel/ir/IrParcelSerializerFactory.kt
+++ b/plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/parcel/ir/IrParcelSerializerFactory.kt
@@ -6,8 +6,8 @@
 package org.jetbrains.kotlin.android.parcel.ir
 
 import org.jetbrains.kotlin.android.parcel.serializers.RAWVALUE_ANNOTATION_FQNAME
-import org.jetbrains.kotlin.backend.jvm.codegen.psiElement
 import org.jetbrains.kotlin.backend.jvm.ir.erasedUpperBound
+import org.jetbrains.kotlin.backend.jvm.ir.psiElement
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.types.*
diff --git a/plugins/parcelize/parcelize-compiler/src/org/jetbrains/kotlin/parcelize/ir/IrParcelSerializerFactory.kt b/plugins/parcelize/parcelize-compiler/src/org/jetbrains/kotlin/parcelize/ir/IrParcelSerializerFactory.kt
index dc0a2622725..bbef5704eb4 100644
--- a/plugins/parcelize/parcelize-compiler/src/org/jetbrains/kotlin/parcelize/ir/IrParcelSerializerFactory.kt
+++ b/plugins/parcelize/parcelize-compiler/src/org/jetbrains/kotlin/parcelize/ir/IrParcelSerializerFactory.kt
@@ -5,8 +5,8 @@
 
 package org.jetbrains.kotlin.parcelize.ir
 
-import org.jetbrains.kotlin.backend.jvm.codegen.psiElement
 import org.jetbrains.kotlin.backend.jvm.ir.erasedUpperBound
+import org.jetbrains.kotlin.backend.jvm.ir.psiElement
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.types.*