[FIR2IR] Fix translating primitive array types

This commit fixes two issues in the existing implementation of translating primitive array types:

 * IrType.getArrayElementType throws an exception when the receiver is a primitive array type, because IR expects primitive array types use symbols defined in IrBuiltIns, but fir2ir translation doesn't;
 * IteratorNext.toCallable assumes all element types are boxed.

The first issue is fixed by changing the fir2ir type translation to use symbols in IrBuiltIns for primitive array types, and the second by not unboxing primitive types.

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/ConversionUtils.kt

@@ -17,6 +17,7 @@ import org.jetbrains.kotlin.fir.symbols.AbstractFirBasedSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.*
 import org.jetbrains.kotlin.fir.types.*
 import org.jetbrains.kotlin.ir.IrElement
+import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
 import org.jetbrains.kotlin.ir.symbols.*
 import org.jetbrains.kotlin.ir.types.IrErrorType
 import org.jetbrains.kotlin.ir.types.IrType
@@ -25,6 +26,8 @@ import org.jetbrains.kotlin.ir.types.impl.IrErrorTypeImpl
 import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
 import org.jetbrains.kotlin.ir.types.impl.IrStarProjectionImpl
 import org.jetbrains.kotlin.ir.types.impl.makeTypeProjection
+import org.jetbrains.kotlin.name.ClassId
+import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.psiUtil.endOffset
 import org.jetbrains.kotlin.psi.psiUtil.startOffsetSkippingComments
 import org.jetbrains.kotlin.types.Variance
@@ -40,56 +43,82 @@ internal fun <T : IrElement> FirElement.convertWithOffsets(
 
 internal fun createErrorType(): IrErrorType = IrErrorTypeImpl(null, emptyList(), Variance.INVARIANT)
 
-fun FirTypeRef.toIrType(session: FirSession, declarationStorage: Fir2IrDeclarationStorage): IrType {
+fun FirTypeRef.toIrType(session: FirSession, declarationStorage: Fir2IrDeclarationStorage, irBuiltIns: IrBuiltIns): IrType {
     if (this !is FirResolvedTypeRef) {
         return createErrorType()
     }
-    return type.toIrType(session, declarationStorage)
+    return type.toIrType(session, declarationStorage, irBuiltIns)
 }
 
-fun ConeKotlinType.toIrType(session: FirSession, declarationStorage: Fir2IrDeclarationStorage, definitelyNotNull: Boolean = false): IrType {
+fun ConeKotlinType.toIrType(
+    session: FirSession,
+    declarationStorage: Fir2IrDeclarationStorage,
+    irBuiltIns: IrBuiltIns,
+    definitelyNotNull: Boolean = false
+): IrType {
     return when (this) {
         is ConeKotlinErrorType -> createErrorType()
         is ConeLookupTagBasedType -> {
-            val firSymbol = this.lookupTag.toSymbol(session) ?: return createErrorType()
+            val irSymbol = getPrimitiveArrayType(this.classId, irBuiltIns) ?: run {
-            val irSymbol = firSymbol.toIrSymbol(session, declarationStorage)
+                val firSymbol = this.lookupTag.toSymbol(session) ?: return createErrorType()
+                firSymbol.toIrSymbol(session, declarationStorage)
+            }
             // TODO: annotations
             IrSimpleTypeImpl(
                 irSymbol, !definitelyNotNull && this.isMarkedNullable,
-                typeArguments.map { it.toIrTypeArgument(session, declarationStorage) },
+                typeArguments.map { it.toIrTypeArgument(session, declarationStorage, irBuiltIns) },
                 emptyList()
             )
         }
         is ConeFlexibleType -> {
             // TODO: yet we take more general type. Not quite sure it's Ok
-            upperBound.toIrType(session, declarationStorage, definitelyNotNull)
+            upperBound.toIrType(session, declarationStorage, irBuiltIns, definitelyNotNull)
         }
         is ConeCapturedType -> TODO()
         is ConeDefinitelyNotNullType -> {
-            original.toIrType(session, declarationStorage, definitelyNotNull = true)
+            original.toIrType(session, declarationStorage, irBuiltIns, definitelyNotNull = true)
         }
         is ConeIntersectionType -> {
             // TODO: add intersectionTypeApproximation
-            intersectedTypes.first().toIrType(session, declarationStorage, definitelyNotNull)
+            intersectedTypes.first().toIrType(session, declarationStorage, irBuiltIns, definitelyNotNull)
         }
         is ConeStubType -> createErrorType()
-        is ConeIntegerLiteralType -> getApproximatedType().toIrType(session, declarationStorage, definitelyNotNull)
+        is ConeIntegerLiteralType -> getApproximatedType().toIrType(session, declarationStorage, irBuiltIns, definitelyNotNull)
     }
 }
 
-fun ConeKotlinTypeProjection.toIrTypeArgument(session: FirSession, declarationStorage: Fir2IrDeclarationStorage): IrTypeArgument {
+private fun getPrimitiveArrayType(classId: ClassId?, irBuiltIns: IrBuiltIns): IrClassifierSymbol? {
+    val irType = when (classId) {
+        ClassId(FqName("kotlin"), FqName("BooleanArray"), false) -> irBuiltIns.booleanType
+        ClassId(FqName("kotlin"), FqName("ByteArray"), false) -> irBuiltIns.byteType
+        ClassId(FqName("kotlin"), FqName("CharArray"), false) -> irBuiltIns.charType
+        ClassId(FqName("kotlin"), FqName("DoubleArray"), false) -> irBuiltIns.doubleType
+        ClassId(FqName("kotlin"), FqName("FloatArray"), false) -> irBuiltIns.floatType
+        ClassId(FqName("kotlin"), FqName("IntArray"), false) -> irBuiltIns.intType
+        ClassId(FqName("kotlin"), FqName("LongArray"), false) -> irBuiltIns.longType
+        ClassId(FqName("kotlin"), FqName("ShortArray"), false) -> irBuiltIns.shortType
+        else -> null
+    }
+    return irType?.let { irBuiltIns.primitiveArrayForType.getValue(it) }
+}
+
+fun ConeKotlinTypeProjection.toIrTypeArgument(
+    session: FirSession,
+    declarationStorage: Fir2IrDeclarationStorage,
+    irBuiltIns: IrBuiltIns
+): IrTypeArgument {
     return when (this) {
         ConeStarProjection -> IrStarProjectionImpl
         is ConeKotlinTypeProjectionIn -> {
-            val irType = this.type.toIrType(session, declarationStorage)
+            val irType = this.type.toIrType(session, declarationStorage, irBuiltIns)
             makeTypeProjection(irType, Variance.IN_VARIANCE)
         }
         is ConeKotlinTypeProjectionOut -> {
-            val irType = this.type.toIrType(session, declarationStorage)
+            val irType = this.type.toIrType(session, declarationStorage, irBuiltIns)
             makeTypeProjection(irType, Variance.OUT_VARIANCE)
         }
         is ConeKotlinType -> {
-            val irType = toIrType(session, declarationStorage)
+            val irType = toIrType(session, declarationStorage, irBuiltIns)
             makeTypeProjection(irType, Variance.INVARIANT)
         }
     }

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrDeclarationStorage.kt

@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.fir.symbols.impl.FirClassSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirFunctionSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirTypeParameterSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirVariableSymbol
+import org.jetbrains.kotlin.fir.types.FirTypeRef
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.declarations.impl.*
 import org.jetbrains.kotlin.ir.descriptors.*
@@ -40,7 +41,8 @@ import org.jetbrains.kotlin.psi.psiUtil.startOffsetSkippingComments
 class Fir2IrDeclarationStorage(
     private val session: FirSession,
     private val irSymbolTable: SymbolTable,
-    private val moduleDescriptor: FirModuleDescriptor
+    private val moduleDescriptor: FirModuleDescriptor,
+    private val irBuiltIns: IrBuiltIns
 ) {
     private val firSymbolProvider = session.firSymbolProvider
 
@@ -90,6 +92,9 @@ class Fir2IrDeclarationStorage(
         irSymbolTable.leaveScope(descriptor)
     }
 
+    private fun FirTypeRef.toIrType(session: FirSession, declarationStorage: Fir2IrDeclarationStorage) =
+        toIrType(session, declarationStorage, irBuiltIns)
+
     private fun getIrExternalPackageFragment(fqName: FqName): IrExternalPackageFragment {
         return fragmentCache.getOrPut(fqName) {
             // TODO: module descriptor is wrong here

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt

@@ -75,7 +75,7 @@ class Fir2IrVisitor(
 
     private val typeContext = session.typeContext
 
-    private val declarationStorage = Fir2IrDeclarationStorage(session, symbolTable, moduleDescriptor)
+    private val declarationStorage = Fir2IrDeclarationStorage(session, symbolTable, moduleDescriptor, irBuiltIns)
 
     private val nothingType = session.builtinTypes.nothingType.toIrType(session, declarationStorage)
 
@@ -138,6 +138,9 @@ class Fir2IrVisitor(
         return result
     }
 
+    private fun FirTypeRef.toIrType(session: FirSession, declarationStorage: Fir2IrDeclarationStorage) =
+        toIrType(session, declarationStorage, irBuiltIns)
+
     override fun visitElement(element: FirElement, data: Any?): IrElement {
         TODO("Should not be here: ${element.render()}")
     }
@@ -711,7 +714,7 @@ class Fir2IrVisitor(
     private fun FirAnnotationCall.toIrExpression(): IrExpression {
         val coneType = (annotationTypeRef as? FirResolvedTypeRef)?.type as? ConeLookupTagBasedType
         val firSymbol = coneType?.lookupTag?.toSymbol(session) as? FirClassSymbol
-        val type = coneType?.toIrType(this@Fir2IrVisitor.session, declarationStorage)
+        val type = coneType?.toIrType(session, declarationStorage, irBuiltIns)
         val symbol = type?.classifierOrNull
         return convertWithOffsets { startOffset, endOffset ->
             when (symbol) {

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/intrinsics/IteratorNext.kt

@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.codegen.AsmUtil
 import org.jetbrains.kotlin.fileClasses.internalNameWithoutInnerClasses
 import org.jetbrains.kotlin.ir.expressions.IrFunctionAccessExpression
 import org.jetbrains.kotlin.ir.expressions.IrMemberAccessExpression
+import org.jetbrains.kotlin.ir.types.isPrimitiveType
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.jvm.AsmTypes
 import org.jetbrains.kotlin.resolve.jvm.JvmPrimitiveType
@@ -31,7 +32,8 @@ import org.jetbrains.org.objectweb.asm.Type
 object IteratorNext : IntrinsicMethod() {
 
     override fun toCallable(expression: IrFunctionAccessExpression, signature: JvmMethodSignature, context: JvmBackendContext): IrIntrinsicFunction {
-        val type = AsmUtil.unboxType(signature.returnType)
+        // If the array element type is unboxed primitive, do not unbox. Otherwise AsmUtil.unbox throws exception
+        val type = if (AsmUtil.isBoxedPrimitiveType(signature.returnType)) AsmUtil.unboxType(signature.returnType) else signature.returnType
         val newSignature = signature.newReturnType(type)
         return IrIntrinsicFunction.create(expression, newSignature, context, AsmTypes.OBJECT_TYPE) {
             val primitiveClassName = getKotlinPrimitiveClassName(type)

compiler/testData/codegen/box/arrays/forEachBooleanArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in BooleanArray(5)) {
         if (x != false) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachByteArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in ByteArray(5)) {
         if (x != 0.toByte()) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachCharArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in CharArray(5)) {
         if (x != 0.toChar()) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachDoubleArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in DoubleArray(5)) {
         if (x != 0.toDouble()) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachFloatArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in FloatArray(5)) {
         if (x != 0.toFloat()) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachIntArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in IntArray(5)) {
         if (x != 0) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachLongArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in LongArray(5)) {
         if (x != 0.toLong()) return "Fail $x"

compiler/testData/codegen/box/arrays/forEachShortArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     for (x in ShortArray(5)) {
         if (x != 0.toShort()) return "Fail $x"

compiler/testData/codegen/box/arrays/iteratorBooleanArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = BooleanArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorByteArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = ByteArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorByteArrayNextByte.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = ByteArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorCharArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = CharArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorDoubleArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = DoubleArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorFloatArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = FloatArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorIntArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = IntArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorLongArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = LongArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorLongArrayNextLong.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = LongArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/arrays/iteratorShortArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     val a = ShortArray(5)
     val x = a.iterator()

compiler/testData/codegen/box/controlStructures/breakContinueInExpressions/breakInExpr.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun test(str: String): String {
     var s = ""
     for (i in 1..3) {

compiler/testData/codegen/box/controlStructures/breakContinueInExpressions/continueInExpr.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     var s = "OK"
     for (i in 1..3) {

compiler/testData/codegen/box/controlStructures/breakContinueInExpressions/tryFinally2.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     var r = ""
     for (i in 1..1)  {

compiler/testData/codegen/box/controlStructures/forInArray/forPrimitiveIntArray.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box() : String {
     val a = IntArray (5)
     var i = 0

compiler/testData/codegen/box/controlStructures/kt772.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 package demo2
 
 fun print(o : Any?) {}

compiler/testData/codegen/box/controlStructures/kt773.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 package demo2
 
 fun print(o : Any?) {}

compiler/testData/codegen/box/controlStructures/longRange.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
   val r = 1.toLong()..2
   var s = ""

compiler/testData/codegen/box/controlStructures/tryCatchInExpressions/tryAndContinue.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun idiv(a: Int, b: Int): Int =
         if (b == 0) throw Exception("Division by zero") else a / b
 

compiler/testData/codegen/box/finally/breakAndOuterFinally.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 var result = ""
 
 fun test() {

compiler/testData/codegen/box/finally/continueAndOuterFinally.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 var result = ""
 
 fun test() {

compiler/testData/codegen/box/finally/kt31923_break.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +ProperFinally
-// IGNORE_BACKEND_FIR: JVM_IR
 var result = ""
 
 fun test() {

compiler/testData/codegen/box/finally/kt31923_continue.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +ProperFinally
-// IGNORE_BACKEND_FIR: JVM_IR
 var result = ""
 
 fun test() {

compiler/testData/codegen/box/finally/kt3874.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun test1(): String {
     var r = ""
     for (i in 1..2)  {

compiler/testData/codegen/box/intrinsics/tostring.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // TODO: muted automatically, investigate should it be ran for JS or not
 // IGNORE_BACKEND: JS
 

compiler/testData/codegen/box/labels/controlLabelClashesWithFuncitonName.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun test1(): Boolean {
     test1@ for(i in 1..2) {
         continue@test1

compiler/testData/codegen/box/multiDecl/forRange/explicitRangeTo/int/MultiDeclForComponentExtensions.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 operator fun Int.component1() = this + 1
 operator fun Int.component2() = this + 2
 

compiler/testData/codegen/box/multiDecl/forRange/explicitRangeTo/long/MultiDeclForComponentExtensions.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 operator fun Long.component1() = this + 1
 operator fun Long.component2() = this + 2
 

compiler/testData/codegen/box/multiDecl/forRange/explicitRangeToWithDot/int/MultiDeclForComponentExtensions.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 operator fun Int.component1() = this + 1
 operator fun Int.component2() = this + 2
 

compiler/testData/codegen/box/multiDecl/forRange/int/MultiDeclForComponentExtensions.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 operator fun Int.component1() = this + 1
 operator fun Int.component2() = this + 2
 

compiler/testData/codegen/box/multiDecl/forRange/long/MultiDeclForComponentExtensions.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 operator fun Long.component1() = this + 1
 operator fun Long.component2() = this + 2
 

compiler/testData/codegen/box/primitiveTypes/kt752.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // IGNORE_BACKEND: JS_IR
 // TODO: muted automatically, investigate should it be ran for JS or not
 // IGNORE_BACKEND: JS, NATIVE

compiler/testData/codegen/box/ranges/contains/inIntRange.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // IGNORE_BACKEND: JS_IR
 // TODO: muted automatically, investigate should it be ran for JS or not
 // IGNORE_BACKEND: JS

compiler/testData/codegen/box/ranges/expression/emptyRange.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // KJS_WITH_FULL_RUNTIME
 // Auto-generated by org.jetbrains.kotlin.generators.tests.GenerateRangesCodegenTestData. DO NOT EDIT!
 // WITH_RUNTIME

compiler/testData/codegen/box/ranges/forInRangeLiteralWithMixedTypeBounds.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun test1(): Long {
     var s = 0L
     for (i in 1L..4) {

compiler/testData/codegen/box/ranges/literal/emptyRange.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // KJS_WITH_FULL_RUNTIME
 // Auto-generated by org.jetbrains.kotlin.generators.tests.GenerateRangesCodegenTestData. DO NOT EDIT!
 // WITH_RUNTIME

compiler/testData/codegen/box/ranges/nullableLoopParameter/progressionExpression.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     var result = 0
     val intRange: IntProgression = 1..3

compiler/testData/codegen/box/ranges/nullableLoopParameter/rangeExpression.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     var result = 0
     val intRange = 1..3

compiler/testData/codegen/box/ranges/nullableLoopParameter/rangeLiteral.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun box(): String {
     var result = 0
     for (i: Int? in 1..3) {

compiler/testData/codegen/box/strings/kt894.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun stringConcat(n : Int) : String? {
   var string : String? = ""
   for (i in 0..(n - 1))

compiler/tests/org/jetbrains/kotlin/generators/tests/GenerateRangesCodegenTestData.java

@@ -135,7 +135,7 @@ public class GenerateRangesCodegenTestData {
         out.printf("// IGNORE_BACKEND: %s%n%n", backendName);
     }
 
-    private static void writeToFile(File file, String generatedBody, boolean isForUnsigned) {
+    private static void writeToFile(File file, String generatedBody, boolean isForUnsigned, boolean ignoreFrontendIR) {
         PrintWriter out;
         try {
             //noinspection IOResourceOpenedButNotSafelyClosed
@@ -145,7 +145,9 @@ public class GenerateRangesCodegenTestData {
             throw new AssertionError(e);
         }
 
-        out.println("// IGNORE_BACKEND_FIR: JVM_IR");
+        if (ignoreFrontendIR) {
+            out.println("// IGNORE_BACKEND_FIR: JVM_IR");
+        }
         out.println("// KJS_WITH_FULL_RUNTIME");
         out.println("// Auto-generated by " + GenerateRangesCodegenTestData.class.getName() + ". DO NOT EDIT!");
         out.println("// WITH_RUNTIME");
@@ -225,10 +227,10 @@ public class GenerateRangesCodegenTestData {
                     }
 
                     String fileName = testFunName + ".kt";
-                    writeToFile(new File(AS_LITERAL_DIR, fileName), asLiteralBody.toString(), false);
+                    writeToFile(new File(AS_LITERAL_DIR, fileName), asLiteralBody.toString(), false, !fileName.equals("emptyRange.kt"));
-                    writeToFile(new File(AS_EXPRESSION_DIR, fileName), asExpressionBody.toString(), false);
+                    writeToFile(new File(AS_EXPRESSION_DIR, fileName), asExpressionBody.toString(), false, !fileName.equals("emptyRange.kt"));
-                    writeToFile(new File(UNSIGNED_AS_LITERAL_DIR, fileName), unsignedAsLiteralBody.toString(), true);
+                    writeToFile(new File(UNSIGNED_AS_LITERAL_DIR, fileName), unsignedAsLiteralBody.toString(), true, true);
-                    writeToFile(new File(UNSIGNED_AS_EXPRESSION_DIR, fileName), unsignedAsExpressionBody.toString(), true);
+                    writeToFile(new File(UNSIGNED_AS_EXPRESSION_DIR, fileName), unsignedAsExpressionBody.toString(), true, true);
                 }
             }
         }