diff --git a/compiler/ir/serialization.common/src/KotlinIr.proto b/compiler/ir/serialization.common/src/KotlinIr.proto
index af337d5da2f..8a200215923 100644
--- a/compiler/ir/serialization.common/src/KotlinIr.proto
+++ b/compiler/ir/serialization.common/src/KotlinIr.proto
@@ -125,7 +125,6 @@ enum IrSymbolKind {
   TYPE_PARAMETER_SYMBOL = 8;
   VARIABLE_SYMBOL = 9;
   ANONYMOUS_INIT_SYMBOL = 10;
-
   STANDALONE_FIELD_SYMBOL = 11; // For fields without properties. WrappedFieldDescriptor, rather than WrappedPropertyDescriptor.
   RECEIVER_PARAMETER_SYMBOL = 12; // ReceiverParameterDescriptor rather than ValueParameterDescriptor.
 }
@@ -217,7 +216,7 @@ message IrBreak {
 }
 
 message IrBlock {
-  required IrStatementOrigin origin = 1;
+  optional IrStatementOrigin origin = 1;
   repeated IrStatement statement = 2;
 }
 
@@ -238,7 +237,7 @@ message IrCall {
   required IrSymbol symbol = 2;
   required MemberAccessCommon member_access = 3;
   optional IrSymbol super = 4;
-  required IrStatementOrigin origin = 5;
+  optional IrStatementOrigin origin = 5;
 }
 
 message IrConstructorCall {
@@ -249,7 +248,7 @@ message IrConstructorCall {
 
 message IrFunctionReference {
   required IrSymbol symbol = 1;
-  required IrStatementOrigin origin = 2;
+  optional IrStatementOrigin origin = 2;
   required MemberAccessCommon member_access = 3;
 }
 
@@ -258,21 +257,21 @@ message IrLocalDelegatedPropertyReference {
   optional IrSymbol getter = 2;
   optional IrSymbol setter = 3;
   required IrSymbol symbol = 4;
-  required IrStatementOrigin origin = 5;
+  optional IrStatementOrigin origin = 5;
 }
 
 message IrPropertyReference {
   optional IrSymbol field = 1;
   optional IrSymbol getter = 2;
   optional IrSymbol setter = 3;
-  required IrStatementOrigin origin = 4;
+  optional IrStatementOrigin origin = 4;
   required MemberAccessCommon member_access = 5;
   optional DescriptorReference descriptor_reference = 6; // IrProperty doesn't have a symbol at all. Preserve this rudiment for now.
 }
 
 message IrComposite {
   repeated IrStatement statement = 1;
-  required IrStatementOrigin origin = 2;
+  optional IrStatementOrigin origin = 2;
 }
 
 message IrClassReference {
@@ -330,12 +329,12 @@ message FieldAccessCommon {
 
 message IrGetField {
   required FieldAccessCommon field_access = 1;
-  required IrStatementOrigin origin = 2;
+  optional IrStatementOrigin origin = 2;
 }
 
 message IrGetValue {
   required IrSymbol symbol = 1;
-  required IrStatementOrigin origin = 2;
+  optional IrStatementOrigin origin = 2;
 }
 
 message IrGetObject {
@@ -351,7 +350,7 @@ message Loop {
   required IrExpression condition = 2;
   optional String label = 3;
   optional IrExpression body = 4;
-  required IrStatementOrigin origin = 5;
+  optional IrStatementOrigin origin = 5;
 }
 
 message IrReturn {
@@ -362,13 +361,13 @@ message IrReturn {
 message IrSetField {
   required FieldAccessCommon field_access = 1;
   required IrExpression value = 2;
-  required IrStatementOrigin origin = 3;
+  optional IrStatementOrigin origin = 3;
 }
 
 message IrSetVariable {
   required IrSymbol symbol = 1;
   required IrExpression value = 2;
-  required IrStatementOrigin origin = 3;
+  optional IrStatementOrigin origin = 3;
 }
 
 message IrSpreadElement {
@@ -410,7 +409,7 @@ message IrVarargElement {
 
 message IrWhen {
   repeated IrStatement branch = 1;
-  required IrStatementOrigin origin = 2;
+  optional IrStatementOrigin origin = 2;
 }
 
 message IrWhile {
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleDeserializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleDeserializer.kt
index 733c83f1c77..bb5a80e63ab 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleDeserializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleDeserializer.kt
@@ -201,7 +201,7 @@ abstract class IrModuleDeserializer(
     private fun deserializeBlock(proto: KotlinIr.IrBlock, start: Int, end: Int, type: IrType): IrBlock {
         val statements = mutableListOf<IrStatement>()
         val statementProtos = proto.statementList
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         statementProtos.forEach {
             statements.add(deserializeStatement(it) as IrStatement)
@@ -263,7 +263,7 @@ abstract class IrModuleDeserializer(
             deserializeIrSymbol(proto.`super`) as IrClassSymbol
         } else null
 
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         val call: IrCall = when (proto.kind) {
             KotlinIr.IrCall.Primitive.NOT_PRIMITIVE ->
@@ -289,7 +289,7 @@ abstract class IrModuleDeserializer(
     private fun deserializeComposite(proto: KotlinIr.IrComposite, start: Int, end: Int, type: IrType): IrComposite {
         val statements = mutableListOf<IrStatement>()
         val statementProtos = proto.statementList
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         statementProtos.forEach {
             statements.add(deserializeStatement(it) as IrStatement)
@@ -344,7 +344,7 @@ abstract class IrModuleDeserializer(
     ): IrFunctionReference {
 
         val symbol = deserializeIrSymbol(proto.symbol) as IrFunctionSymbol
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
         val callable = IrFunctionReferenceImpl(
             start,
             end,
@@ -368,7 +368,7 @@ abstract class IrModuleDeserializer(
     private fun deserializeGetField(proto: KotlinIr.IrGetField, start: Int, end: Int, type: IrType): IrGetField {
         val access = proto.fieldAccess
         val symbol = deserializeIrSymbol(access.symbol) as IrFieldSymbol
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         val superQualifier = if (access.hasSuper()) {
             deserializeIrSymbol(access.symbol) as IrClassSymbol
@@ -382,7 +382,7 @@ abstract class IrModuleDeserializer(
 
     private fun deserializeGetValue(proto: KotlinIr.IrGetValue, start: Int, end: Int, type: IrType): IrGetValue {
         val symbol = deserializeIrSymbol(proto.symbol) as IrValueSymbol
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
         // TODO: origin!
         return IrGetValueImpl(start, end, type, symbol, origin)
     }
@@ -427,7 +427,7 @@ abstract class IrModuleDeserializer(
         val getter = deserializeIrSymbol(proto.getter) as IrSimpleFunctionSymbol
         val setter = if (proto.hasSetter()) deserializeIrSymbol(proto.setter) as IrSimpleFunctionSymbol else null
         val symbol = deserializeIrSymbol(proto.symbol) as IrLocalDelegatedPropertySymbol
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         return IrLocalDelegatedPropertyReferenceImpl(
             start, end, type,
@@ -449,7 +449,7 @@ abstract class IrModuleDeserializer(
         val field = if (proto.hasField()) deserializeIrSymbol(proto.field) as IrFieldSymbol else null
         val getter = if (proto.hasGetter()) deserializeIrSymbol(proto.getter) as IrSimpleFunctionSymbol else null
         val setter = if (proto.hasSetter()) deserializeIrSymbol(proto.setter) as IrSimpleFunctionSymbol else null
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         val descriptor =
             if (proto.hasDescriptorReference())
@@ -487,7 +487,7 @@ abstract class IrModuleDeserializer(
             deserializeExpression(access.receiver)
         } else null
         val value = deserializeExpression(proto.value)
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         return IrSetFieldImpl(start, end, symbol, receiver, value, builtIns.unitType, origin, superQualifier)
     }
@@ -495,7 +495,7 @@ abstract class IrModuleDeserializer(
     private fun deserializeSetVariable(proto: KotlinIr.IrSetVariable, start: Int, end: Int): IrSetVariable {
         val symbol = deserializeIrSymbol(proto.symbol) as IrVariableSymbol
         val value = deserializeExpression(proto.value)
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
         return IrSetVariableImpl(start, end, builtIns.unitType, symbol, value, origin)
     }
 
@@ -588,7 +588,7 @@ abstract class IrModuleDeserializer(
 
     private fun deserializeWhen(proto: KotlinIr.IrWhen, start: Int, end: Int, type: IrType): IrWhen {
         val branches = mutableListOf<IrBranch>()
-        val origin = deserializeIrStatementOrigin(proto.origin)
+        val origin = if (proto.hasOrigin()) deserializeIrStatementOrigin(proto.origin) else null
 
         proto.branchList.forEach {
             branches.add(deserializeStatement(it) as IrBranch)
@@ -614,13 +614,13 @@ abstract class IrModuleDeserializer(
     // IrBreak statements have something to put into 'loop' field.
     private fun deserializeDoWhile(proto: KotlinIr.IrDoWhile, start: Int, end: Int, type: IrType) =
         deserializeLoop(proto.loop, deserializeLoopHeader(proto.loop.loopId) {
-            val origin = deserializeIrStatementOrigin(proto.loop.origin)
+            val origin = if (proto.loop.hasOrigin()) deserializeIrStatementOrigin(proto.loop.origin) else null
             IrDoWhileLoopImpl(start, end, type, origin)
         })
 
     private fun deserializeWhile(proto: KotlinIr.IrWhile, start: Int, end: Int, type: IrType) =
         deserializeLoop(proto.loop, deserializeLoopHeader(proto.loop.loopId) {
-            val origin = deserializeIrStatementOrigin(proto.loop.origin)
+            val origin = if (proto.loop.hasOrigin()) deserializeIrStatementOrigin(proto.loop.origin) else null
             IrWhileLoopImpl(start, end, type, origin)
         })
 
@@ -1249,11 +1249,10 @@ abstract class IrModuleDeserializer(
     val statementOriginIndex =
         allKnownStatementOrigins.map { it.objectInstance as? IrStatementOriginImpl }.filterNotNull().associateBy { it.debugName }
 
-    fun deserializeIrStatementOrigin(proto: KotlinIr.IrStatementOrigin): IrStatementOrigin? {
+    fun deserializeIrStatementOrigin(proto: KotlinIr.IrStatementOrigin): IrStatementOrigin {
         return deserializeString(proto.name).let {
             val componentPrefix = "COMPONENT_"
             when {
-                it == "" -> null
                 it.startsWith(componentPrefix) -> {
                     IrStatementOrigin.COMPONENT_N.withIndex(it.removePrefix(componentPrefix).toInt())
                 }
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleSerializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleSerializer.kt
index 90660e5d435..77047a17b3d 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleSerializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleSerializer.kt
@@ -61,10 +61,9 @@ open class IrModuleSerializer(
             .setCustom(serializeString((origin as IrDeclarationOriginImpl).name))
             .build()
 
-    private fun serializeIrStatementOrigin(origin: IrStatementOrigin?) =
+    private fun serializeIrStatementOrigin(origin: IrStatementOrigin) =
         KotlinIr.IrStatementOrigin.newBuilder()
-            //.setName(serializeString((origin as IrStatementOriginImpl).debugName))
-            .setName(serializeString((origin as IrStatementOriginImpl?)?.debugName ?: ""))
+            .setName(serializeString((origin as IrStatementOriginImpl).debugName))
             .build()
 
     private fun serializeVisibility(visibility: Visibility) =
@@ -297,13 +296,6 @@ open class IrModuleSerializer(
 
     /* -------------------------------------------------------------------------- */
 
-    private fun serializeStatementOrigin(origin: IrStatementOrigin?): KotlinIr.IrStatementOrigin {
-        require(origin is IrStatementOriginImpl?)
-        return KotlinIr.IrStatementOrigin.newBuilder()
-            .setName(serializeString(origin?.debugName ?: ""))
-            .build()
-    }
-
     private fun serializeBlockBody(expression: IrBlockBody): KotlinIr.IrBlockBody {
         val proto = KotlinIr.IrBlockBody.newBuilder()
         expression.statements.forEach {
@@ -323,7 +315,8 @@ open class IrModuleSerializer(
 
     private fun serializeBlock(block: IrBlock): KotlinIr.IrBlock {
         val proto = KotlinIr.IrBlock.newBuilder()
-            .setOrigin(serializeIrStatementOrigin(block.origin))
+
+        block.origin?.let { proto.setOrigin(serializeIrStatementOrigin(it)) }
 
         block.statements.forEach {
             proto.addStatement(serializeStatement(it))
@@ -333,7 +326,8 @@ open class IrModuleSerializer(
 
     private fun serializeComposite(composite: IrComposite): KotlinIr.IrComposite {
         val proto = KotlinIr.IrComposite.newBuilder()
-            .setOrigin(serializeIrStatementOrigin(composite.origin))
+
+        composite.origin?.let { proto.setOrigin(serializeIrStatementOrigin(it)) }
         composite.statements.forEach {
             proto.addStatement(serializeStatement(it))
         }
@@ -397,7 +391,7 @@ open class IrModuleSerializer(
         val proto = KotlinIr.IrCall.newBuilder()
         proto.kind = irCallToPrimitiveKind(call)
         proto.symbol = serializeIrSymbol(call.symbol)
-        proto.origin = serializeStatementOrigin(call.origin)
+        call.origin?.let { proto.origin = serializeIrStatementOrigin(it) }
 
         call.superQualifierSymbol?.let {
             proto.`super` = serializeIrSymbol(it)
@@ -418,8 +412,8 @@ open class IrModuleSerializer(
         val proto = KotlinIr.IrFunctionReference.newBuilder()
             .setSymbol(serializeIrSymbol(callable.symbol))
             .setMemberAccess(serializeMemberAccessCommon(callable))
-            .setOrigin(serializeIrStatementOrigin(callable.origin))
 
+        callable.origin?.let { proto.setOrigin(serializeIrStatementOrigin(it)) }
         return proto.build()
     }
 
@@ -430,8 +424,8 @@ open class IrModuleSerializer(
             .setDelegate(serializeIrSymbol(callable.delegate))
             .setGetter(serializeIrSymbol(callable.getter))
             .setSymbol(serializeIrSymbol(callable.symbol))
-            .setOrigin(serializeIrStatementOrigin(callable.origin))
 
+        callable.origin?.let { proto.setOrigin(serializeIrStatementOrigin(it)) }
         callable.setter?.let { proto.setSetter(serializeIrSymbol(it)) }
 
         return proto.build()
@@ -440,7 +434,7 @@ open class IrModuleSerializer(
     private fun serializePropertyReference(callable: IrPropertyReference): KotlinIr.IrPropertyReference {
         val proto = KotlinIr.IrPropertyReference.newBuilder()
             .setMemberAccess(serializeMemberAccessCommon(callable))
-            .setOrigin(serializeIrStatementOrigin(callable.origin))
+        callable.origin?.let { proto.origin = serializeIrStatementOrigin(it) }
         callable.field?.let { proto.field = serializeIrSymbol(it) }
         callable.getter?.let { proto.getter = serializeIrSymbol(it) }
         callable.setter?.let { proto.setter = serializeIrSymbol(it) }
@@ -515,14 +509,16 @@ open class IrModuleSerializer(
 
     private fun serializeGetField(expression: IrGetField): KotlinIr.IrGetField =
         KotlinIr.IrGetField.newBuilder()
-            .setFieldAccess(serializeFieldAccessCommon(expression))
-            .setOrigin(serializeIrStatementOrigin(expression.origin))
+            .setFieldAccess(serializeFieldAccessCommon(expression)).apply {
+                expression.origin?.let { setOrigin(serializeIrStatementOrigin(it)) }
+            }
             .build()
 
     private fun serializeGetValue(expression: IrGetValue): KotlinIr.IrGetValue =
         KotlinIr.IrGetValue.newBuilder()
-            .setSymbol(serializeIrSymbol(expression.symbol))
-            .setOrigin(serializeIrStatementOrigin(expression.origin))
+            .setSymbol(serializeIrSymbol(expression.symbol)).apply {
+                expression.origin?.let { setOrigin(serializeIrStatementOrigin(it)) }
+            }
             .build()
 
     private fun serializeGetObject(expression: IrGetObjectValue): KotlinIr.IrGetObject {
@@ -549,15 +545,17 @@ open class IrModuleSerializer(
     private fun serializeSetField(expression: IrSetField): KotlinIr.IrSetField =
         KotlinIr.IrSetField.newBuilder()
             .setFieldAccess(serializeFieldAccessCommon(expression))
-            .setValue(serializeExpression(expression.value))
-            .setOrigin(serializeIrStatementOrigin(expression.origin))
+            .setValue(serializeExpression(expression.value)).apply {
+                expression.origin?.let{ setOrigin(serializeIrStatementOrigin(it)) }
+            }
             .build()
 
     private fun serializeSetVariable(expression: IrSetVariable): KotlinIr.IrSetVariable =
         KotlinIr.IrSetVariable.newBuilder()
             .setSymbol(serializeIrSymbol(expression.symbol))
-            .setValue(serializeExpression(expression.value))
-            .setOrigin(serializeIrStatementOrigin(expression.origin))
+            .setValue(serializeExpression(expression.value)).apply {
+                expression.origin?.let{ setOrigin(serializeIrStatementOrigin(it)) }
+            }
             .build()
 
     private fun serializeSpreadElement(element: IrSpreadElement): KotlinIr.IrSpreadElement {
@@ -650,7 +648,8 @@ open class IrModuleSerializer(
 
     private fun serializeWhen(expression: IrWhen): KotlinIr.IrWhen {
         val proto = KotlinIr.IrWhen.newBuilder()
-            .setOrigin(serializeIrStatementOrigin(expression.origin))
+
+        expression.origin?.let{ proto.setOrigin(serializeIrStatementOrigin(it)) }
 
         val branches = expression.branches
         branches.forEach {
@@ -662,8 +661,9 @@ open class IrModuleSerializer(
 
     private fun serializeLoop(expression: IrLoop): KotlinIr.Loop {
         val proto = KotlinIr.Loop.newBuilder()
-            .setCondition(serializeExpression(expression.condition))
-            .setOrigin(serializeIrStatementOrigin(expression.origin))
+            .setCondition(serializeExpression(expression.condition)).apply {
+                expression.origin?.let{ setOrigin(serializeIrStatementOrigin(it)) }
+            }
 
         val label = expression.label?.let { serializeString(it) }
         if (label != null) {
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIr.java b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIr.java
index b8bbaa64f1d..09cc962e5d7 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIr.java
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIr.java
@@ -1020,7 +1020,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -2344,7 +2344,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -2790,7 +2790,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -3227,7 +3227,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -3631,7 +3631,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -4044,7 +4044,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -4587,7 +4587,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -5088,7 +5088,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -5680,7 +5680,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -6783,7 +6783,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -7750,7 +7750,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -8120,7 +8120,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -8600,7 +8600,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -9446,7 +9446,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -9811,7 +9811,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -10304,7 +10304,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -10797,7 +10797,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -11285,7 +11285,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -11646,7 +11646,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -12146,7 +12146,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -12742,7 +12742,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -13552,7 +13552,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -13956,7 +13956,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -14378,7 +14378,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -15081,7 +15081,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -15569,7 +15569,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -15938,7 +15938,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -16373,11 +16373,11 @@ public final class KotlinIr {
       org.jetbrains.kotlin.protobuf.MessageLiteOrBuilder {
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
 
@@ -16429,7 +16429,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -16506,13 +16506,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 1;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000001) == 0x00000001);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -16563,13 +16563,11 @@ public final class KotlinIr {
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;
 
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       for (int i = 0; i < getStatementCount(); i++) {
         if (!getStatement(i).isInitialized()) {
@@ -16762,13 +16760,11 @@ public final class KotlinIr {
       }
 
       public final boolean isInitialized() {
-        if (!hasOrigin()) {
-          
-          return false;
-        }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         for (int i = 0; i < getStatementCount(); i++) {
           if (!getStatement(i).isInitialized()) {
@@ -16800,19 +16796,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000001) == 0x00000001);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -16824,7 +16820,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -16834,7 +16830,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000001) == 0x00000001) &&
@@ -16849,7 +16845,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 1;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -17073,7 +17069,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -17913,11 +17909,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrSymbol getSuper();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -17955,7 +17951,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -18197,13 +18193,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 5;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000010) == 0x00000010);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -18234,10 +18230,6 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getSymbol().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
@@ -18252,9 +18244,11 @@ public final class KotlinIr {
           return false;
         }
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -18493,10 +18487,6 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getSymbol().isInitialized()) {
           
           return false;
@@ -18511,9 +18501,11 @@ public final class KotlinIr {
             return false;
           }
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -18754,19 +18746,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000010) == 0x00000010);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -18778,7 +18770,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -18788,7 +18780,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000010) == 0x00000010) &&
@@ -18803,7 +18795,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -18888,7 +18880,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -19457,11 +19449,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrSymbol getSymbol();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
 
@@ -19508,7 +19500,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -19615,13 +19607,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 2;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000002) == 0x00000002);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -19657,10 +19649,6 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!hasMemberAccess()) {
         memoizedIsInitialized = 0;
         return false;
@@ -19669,18 +19657,16 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       if (!getMemberAccess().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       memoizedIsInitialized = 1;
       return true;
     }
@@ -19878,10 +19864,6 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!hasMemberAccess()) {
           
           return false;
@@ -19890,18 +19872,16 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         if (!getMemberAccess().isInitialized()) {
           
           return false;
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
-        }
         return true;
       }
 
@@ -19986,19 +19966,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -20010,7 +19990,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -20020,7 +20000,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000002) == 0x00000002) &&
@@ -20035,7 +20015,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -20156,11 +20136,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrSymbol getSymbol();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -20198,7 +20178,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -20376,13 +20356,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 5;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000010) == 0x00000010);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -20409,10 +20389,6 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getDelegate().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
@@ -20433,6 +20409,12 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
+      }
       memoizedIsInitialized = 1;
       return true;
     }
@@ -20666,10 +20648,6 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getDelegate().isInitialized()) {
           
           return false;
@@ -20690,6 +20668,12 @@ public final class KotlinIr {
           
           return false;
         }
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
+        }
         return true;
       }
 
@@ -20954,19 +20938,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000010) == 0x00000010);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -20978,7 +20962,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -20988,7 +20972,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000010) == 0x00000010) &&
@@ -21003,7 +20987,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -21055,11 +21039,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrSymbol getSetter();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
 
@@ -21123,7 +21107,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -21299,13 +21283,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 4;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000008) == 0x00000008);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -21363,10 +21347,6 @@ public final class KotlinIr {
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;
 
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!hasMemberAccess()) {
         memoizedIsInitialized = 0;
         return false;
@@ -21389,9 +21369,11 @@ public final class KotlinIr {
           return false;
         }
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       if (!getMemberAccess().isInitialized()) {
         memoizedIsInitialized = 0;
@@ -21644,10 +21626,6 @@ public final class KotlinIr {
       }
 
       public final boolean isInitialized() {
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!hasMemberAccess()) {
           
           return false;
@@ -21670,9 +21648,11 @@ public final class KotlinIr {
             return false;
           }
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         if (!getMemberAccess().isInitialized()) {
           
@@ -21888,19 +21868,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000008) == 0x00000008);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -21912,7 +21892,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -21922,7 +21902,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000008) == 0x00000008) &&
@@ -21937,7 +21917,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 4;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -22120,11 +22100,11 @@ public final class KotlinIr {
     int getStatementCount();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -22162,7 +22142,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -22274,13 +22254,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 2;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000001) == 0x00000001);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -22296,19 +22276,17 @@ public final class KotlinIr {
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;
 
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       for (int i = 0; i < getStatementCount(); i++) {
         if (!getStatement(i).isInitialized()) {
           memoizedIsInitialized = 0;
           return false;
         }
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -22495,19 +22473,17 @@ public final class KotlinIr {
       }
 
       public final boolean isInitialized() {
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         for (int i = 0; i < getStatementCount(); i++) {
           if (!getStatement(i).isInitialized()) {
             
             return false;
           }
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -22658,19 +22634,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -22682,7 +22658,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -22692,7 +22668,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000002) == 0x00000002) &&
@@ -22707,7 +22683,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -22783,7 +22759,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -23389,7 +23365,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -24536,7 +24512,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -25022,7 +24998,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -25547,7 +25523,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -25960,7 +25936,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -26485,7 +26461,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -26889,7 +26865,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -27311,7 +27287,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -27916,11 +27892,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.FieldAccessCommon getFieldAccess();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -27958,7 +27934,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -28052,13 +28028,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 2;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000002) == 0x00000002);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -28078,17 +28054,15 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getFieldAccess().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -28271,17 +28245,15 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getFieldAccess().isInitialized()) {
           
           return false;
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -28367,19 +28339,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -28391,7 +28363,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -28401,7 +28373,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000002) == 0x00000002) &&
@@ -28416,7 +28388,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -28450,11 +28422,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrSymbol getSymbol();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -28492,7 +28464,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -28586,13 +28558,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 2;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000002) == 0x00000002);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -28612,17 +28584,15 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getSymbol().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -28805,17 +28775,15 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getSymbol().isInitialized()) {
           
           return false;
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -28901,19 +28869,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -28925,7 +28893,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -28935,7 +28903,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000002) == 0x00000002) &&
@@ -28950,7 +28918,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -29017,7 +28985,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -29421,7 +29389,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -29819,11 +29787,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrExpression getBody();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -29861,7 +29829,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -30031,13 +29999,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 5;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000010) == 0x00000010);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -30064,10 +30032,6 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getCondition().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
@@ -30084,9 +30048,11 @@ public final class KotlinIr {
           return false;
         }
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -30321,10 +30287,6 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getCondition().isInitialized()) {
           
           return false;
@@ -30341,9 +30303,11 @@ public final class KotlinIr {
             return false;
           }
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -30581,19 +30545,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000010) == 0x00000010);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -30605,7 +30569,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -30615,7 +30579,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000010) == 0x00000010) &&
@@ -30630,7 +30594,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 5;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -30706,7 +30670,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -31207,11 +31171,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrExpression getValue();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -31249,7 +31213,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -31371,13 +31335,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 3;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000004) == 0x00000004);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -31402,10 +31366,6 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getFieldAccess().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
@@ -31414,9 +31374,11 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -31619,10 +31581,6 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getFieldAccess().isInitialized()) {
           
           return false;
@@ -31631,9 +31589,11 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -31779,19 +31739,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000004) == 0x00000004);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -31803,7 +31763,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -31813,7 +31773,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000004) == 0x00000004) &&
@@ -31828,7 +31788,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -31871,11 +31831,11 @@ public final class KotlinIr {
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrExpression getValue();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -31913,7 +31873,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -32035,13 +31995,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 3;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000004) == 0x00000004);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -32066,10 +32026,6 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       if (!getSymbol().isInitialized()) {
         memoizedIsInitialized = 0;
         return false;
@@ -32078,9 +32034,11 @@ public final class KotlinIr {
         memoizedIsInitialized = 0;
         return false;
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -32283,10 +32241,6 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         if (!getSymbol().isInitialized()) {
           
           return false;
@@ -32295,9 +32249,11 @@ public final class KotlinIr {
           
           return false;
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -32443,19 +32399,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000004) == 0x00000004);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -32467,7 +32423,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -32477,7 +32433,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000004) == 0x00000004) &&
@@ -32492,7 +32448,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 3;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -32568,7 +32524,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -33098,7 +33054,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -33586,7 +33542,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -34013,7 +33969,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -34760,7 +34716,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -35386,7 +35342,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -36007,7 +35963,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -36555,11 +36511,11 @@ public final class KotlinIr {
     int getBranchCount();
 
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     boolean hasOrigin();
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin();
   }
@@ -36597,7 +36553,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -36709,13 +36665,13 @@ public final class KotlinIr {
     public static final int ORIGIN_FIELD_NUMBER = 2;
     private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_;
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public boolean hasOrigin() {
       return ((bitField0_ & 0x00000001) == 0x00000001);
     }
     /**
-     * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+     * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
      */
     public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
       return origin_;
@@ -36731,19 +36687,17 @@ public final class KotlinIr {
       if (isInitialized == 1) return true;
       if (isInitialized == 0) return false;
 
-      if (!hasOrigin()) {
-        memoizedIsInitialized = 0;
-        return false;
-      }
       for (int i = 0; i < getBranchCount(); i++) {
         if (!getBranch(i).isInitialized()) {
           memoizedIsInitialized = 0;
           return false;
         }
       }
-      if (!getOrigin().isInitialized()) {
-        memoizedIsInitialized = 0;
-        return false;
+      if (hasOrigin()) {
+        if (!getOrigin().isInitialized()) {
+          memoizedIsInitialized = 0;
+          return false;
+        }
       }
       memoizedIsInitialized = 1;
       return true;
@@ -36930,19 +36884,17 @@ public final class KotlinIr {
       }
 
       public final boolean isInitialized() {
-        if (!hasOrigin()) {
-          
-          return false;
-        }
         for (int i = 0; i < getBranchCount(); i++) {
           if (!getBranch(i).isInitialized()) {
             
             return false;
           }
         }
-        if (!getOrigin().isInitialized()) {
-          
-          return false;
+        if (hasOrigin()) {
+          if (!getOrigin().isInitialized()) {
+            
+            return false;
+          }
         }
         return true;
       }
@@ -37093,19 +37045,19 @@ public final class KotlinIr {
 
       private org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public boolean hasOrigin() {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin getOrigin() {
         return origin_;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (value == null) {
@@ -37117,7 +37069,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder setOrigin(
           org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.Builder builderForValue) {
@@ -37127,7 +37079,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder mergeOrigin(org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin value) {
         if (((bitField0_ & 0x00000002) == 0x00000002) &&
@@ -37142,7 +37094,7 @@ public final class KotlinIr {
         return this;
       }
       /**
-       * <code>required .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
+       * <code>optional .org.jetbrains.kotlin.backend.common.serialization.IrStatementOrigin origin = 2;</code>
        */
       public Builder clearOrigin() {
         origin_ = org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrStatementOrigin.getDefaultInstance();
@@ -37209,7 +37161,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -37622,7 +37574,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -38170,7 +38122,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -39461,7 +39413,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -43720,7 +43672,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -44366,7 +44318,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -44760,7 +44712,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -45104,7 +45056,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -46232,7 +46184,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -47730,7 +47682,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -48395,7 +48347,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -49564,7 +49516,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -50749,7 +50701,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -52300,7 +52252,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -53357,7 +53309,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -54518,7 +54470,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -55497,7 +55449,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -56115,7 +56067,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -57938,7 +57890,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -58706,7 +58658,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -59335,7 +59287,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -61151,7 +61103,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -61927,7 +61879,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -62457,7 +62409,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -62954,7 +62906,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -63479,7 +63431,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -63907,7 +63859,7 @@ public final class KotlinIr {
           org.jetbrains.kotlin.protobuf.ByteString.newOutput();
       org.jetbrains.kotlin.protobuf.CodedOutputStream unknownFieldsCodedOutput =
           org.jetbrains.kotlin.protobuf.CodedOutputStream.newInstance(
-              unknownFieldsOutput, 1);
+              unknownFieldsOutput);
       try {
         boolean done = false;
         while (!done) {
@@ -65054,4 +65006,4 @@ public final class KotlinIr {
   }
 
   // @@protoc_insertion_point(outer_class_scope)
-}
\ No newline at end of file
+}