[Psi2Ir] Isolate type translator in file scope

Create TypeTranslator per file to avoid reusing it between files

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/Psi2IrTranslator.kt

@@ -63,7 +63,6 @@ class Psi2IrTranslator(
             symbolTable,
             extensions,
             typeTranslator,
-            typeTranslator.constantValueGenerator,
             IrBuiltIns(moduleDescriptor.builtIns, typeTranslator, symbolTable),
         )
     }

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/GeneratorContext.kt

@@ -14,25 +14,47 @@ import org.jetbrains.kotlin.descriptors.NotFoundClasses
 import org.jetbrains.kotlin.ir.builders.IrGeneratorContext
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
 import org.jetbrains.kotlin.ir.expressions.IrDeclarationReference
-import org.jetbrains.kotlin.ir.util.ConstantValueGenerator
 import org.jetbrains.kotlin.ir.util.SymbolTable
 import org.jetbrains.kotlin.ir.util.TypeTranslator
+import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi2ir.Psi2IrConfiguration
 import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.storage.LockBasedStorageManager
 
-class GeneratorContext(
+class GeneratorContext private constructor(
     val configuration: Psi2IrConfiguration,
     val moduleDescriptor: ModuleDescriptor,
     val bindingContext: BindingContext,
     val languageVersionSettings: LanguageVersionSettings,
     val symbolTable: SymbolTable,
     val extensions: GeneratorExtensions,
-    val typeTranslator: TypeTranslatorImpl,
-    val constantValueGenerator: ConstantValueGenerator,
-    override val irBuiltIns: IrBuiltIns
+    val typeTranslator: TypeTranslator,
+    override val irBuiltIns: IrBuiltIns,
+    internal val callToSubstitutedDescriptorMap: MutableMap<IrDeclarationReference, CallableDescriptor>
 ) : IrGeneratorContext {
-    internal val callToSubstitutedDescriptorMap = mutableMapOf<IrDeclarationReference, CallableDescriptor>()
+
+    constructor(
+        configuration: Psi2IrConfiguration,
+        moduleDescriptor: ModuleDescriptor,
+        bindingContext: BindingContext,
+        languageVersionSettings: LanguageVersionSettings,
+        symbolTable: SymbolTable,
+        extensions: GeneratorExtensions,
+        typeTranslator: TypeTranslator,
+        irBuiltIns: IrBuiltIns,
+    ) : this(
+        configuration,
+        moduleDescriptor,
+        bindingContext,
+        languageVersionSettings,
+        symbolTable,
+        extensions,
+        typeTranslator,
+        irBuiltIns,
+        mutableMapOf()
+    )
+
+    val constantValueGenerator = typeTranslator.constantValueGenerator
 
     fun IrDeclarationReference.commitSubstituted(descriptor: CallableDescriptor) {
         callToSubstitutedDescriptorMap[this] = descriptor
@@ -42,4 +64,19 @@ class GeneratorContext(
     val reflectionTypes = ReflectionTypes(moduleDescriptor, NotFoundClasses(LockBasedStorageManager.NO_LOCKS, moduleDescriptor))
 
     val samTypeApproximator = SamTypeApproximator(moduleDescriptor.builtIns, languageVersionSettings)
+
+    fun createFileScopeContext(ktFile: KtFile): GeneratorContext {
+        return GeneratorContext(
+            configuration,
+            moduleDescriptor,
+            bindingContext,
+            languageVersionSettings,
+            symbolTable,
+            extensions,
+            TypeTranslatorImpl(symbolTable, languageVersionSettings, moduleDescriptor, extensions = extensions, ktFile = ktFile),
+            irBuiltIns,
+            callToSubstitutedDescriptorMap
+        )
+    }
+
 }

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/ModuleGenerator.kt

@@ -38,15 +38,13 @@ class ModuleGenerator(
     override val context: GeneratorContext,
     private val expectDescriptorToSymbol: MutableMap<DeclarationDescriptor, IrSymbol>? = null
 ) : Generator {
-    private val constantValueGenerator = context.constantValueGenerator
 
     fun generateModuleFragment(ktFiles: Collection<KtFile>): IrModuleFragment =
         IrModuleFragmentImpl(context.moduleDescriptor, context.irBuiltIns).also { irModule ->
-            val irDeclarationGenerator = DeclarationGenerator(context)
             ktFiles.toSet().mapTo(irModule.files) { ktFile ->
-                context.typeTranslator.inFile(ktFile) {
-                    generateSingleFile(irDeclarationGenerator, ktFile, irModule)
-                }
+                val fileContext = context.createFileScopeContext(ktFile)
+                val irDeclarationGenerator = DeclarationGenerator(fileContext)
+                generateSingleFile(irDeclarationGenerator, ktFile, irModule)
             }
         }
 
@@ -57,6 +55,7 @@ class ModuleGenerator(
     private fun generateSingleFile(irDeclarationGenerator: DeclarationGenerator, ktFile: KtFile, module: IrModuleFragment): IrFileImpl {
         val irFile = createEmptyIrFile(ktFile, module)
 
+        val constantValueGenerator = irDeclarationGenerator.context.constantValueGenerator
         for (ktAnnotationEntry in ktFile.annotationEntries) {
             val annotationDescriptor = getOrFail(BindingContext.ANNOTATION, ktAnnotationEntry)
             constantValueGenerator.generateAnnotationConstructorCall(annotationDescriptor)?.let {

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/TypeTranslatorImpl.kt

@@ -14,16 +14,16 @@ import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.resolve.source.getPsi
 import org.jetbrains.kotlin.types.*
 
-class TypeTranslatorImpl(
+open class TypeTranslatorImpl(
     symbolTable: ReferenceSymbolTable,
     languageVersionSettings: LanguageVersionSettings,
     moduleDescriptor: ModuleDescriptor,
     typeParametersResolverBuilder: () -> TypeParametersResolver = { ScopedTypeParametersResolver() },
     enterTableScope: Boolean = false,
     extensions: StubGeneratorExtensions = StubGeneratorExtensions.EMPTY,
+    private val ktFile: KtFile? = null
 ) : TypeTranslator(symbolTable, languageVersionSettings, typeParametersResolverBuilder, enterTableScope, extensions) {
-    override val constantValueGenerator: ConstantValueGenerator =
-        ConstantValueGeneratorImpl(moduleDescriptor, symbolTable, this)
+    override val constantValueGenerator: ConstantValueGenerator = ConstantValueGeneratorImpl(moduleDescriptor, symbolTable, this)
 
     private val typeApproximatorForNI = TypeApproximator(moduleDescriptor.builtIns, languageVersionSettings)
 
@@ -48,17 +48,6 @@ class TypeTranslatorImpl(
 
         val psiFile = typeAliasDescriptor.source.getPsi()?.containingFile ?: return false
 
-        return psiFile == currentFile
-    }
-
-    private var currentFile: KtFile? = null
-
-    fun <R> inFile(ktFile: KtFile?, block: () -> R): R {
-        try {
-            currentFile = ktFile
-            return block()
-        } finally {
-            currentFile = null
-        }
+        return psiFile == ktFile
     }
 }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/TypeTranslator.kt

@@ -28,11 +28,11 @@ import java.util.*
 
 @OptIn(ObsoleteDescriptorBasedAPI::class)
 abstract class TypeTranslator(
-    private val symbolTable: ReferenceSymbolTable,
+    protected val symbolTable: ReferenceSymbolTable,
     val languageVersionSettings: LanguageVersionSettings,
     typeParametersResolverBuilder: () -> TypeParametersResolver = { ScopedTypeParametersResolver() },
     private val enterTableScope: Boolean = false,
-    private val extensions: StubGeneratorExtensions = StubGeneratorExtensions.EMPTY
+    protected val extensions: StubGeneratorExtensions = StubGeneratorExtensions.EMPTY
 ) {
     abstract val constantValueGenerator: ConstantValueGenerator
 
@@ -69,7 +69,7 @@ abstract class TypeTranslator(
         }
     }
 
-    inline fun <T> buildWithScope(container: IrTypeParametersContainer, builder: () -> T): T {
+    fun <T> buildWithScope(container: IrTypeParametersContainer, builder: () -> T): T {
         enterScope(container)
         val result = builder()
         leaveScope(container)
@@ -170,6 +170,8 @@ abstract class TypeTranslator(
         // Abbreviated type's classifier might not be TypeAliasDescriptor in case it's MockClassDescriptor (not found in dependencies).
         val typeAliasDescriptor = constructor.declarationDescriptor as? TypeAliasDescriptor ?: return null
 
+        // There is possible situation when we have private top-level type alias visible outside its file which is illegal from klib POV.
+        // In that specific case don't generate type abbreviation
         if (!isTypeAliasAccessibleHere(typeAliasDescriptor)) return null
 
         return IrTypeAbbreviationImpl(