[Analysis API decompiler] materialize delegate declarations in stubs

We should materialize delegated declarations to process callables
in scopes correctly. Standalone mode works the same way as it
deserialize directly into FIR.
Another solution is to rework proto and stub serializer/deserializer to
restore FirFields like `$$delegate_0` correctly to work with
`FirDelegatedMemberScope`

^KT-62896 Fixed
^KT-64584 Fixed

analysis/decompiled/decompiler-to-file-stubs/testData/clsFileStubBuilder/Delegation/Delegation.k2.txt

@@ -0,0 +1,55 @@
+PsiJetFileStubImpl[package=]
+  PACKAGE_DIRECTIVE
+  IMPORT_LIST
+  CLASS[classId=/Delegation, fqName=Delegation, isEnumEntry=false, isInterface=false, isLocal=false, isTopLevel=true, name=Delegation, superNames=[T]]
+    MODIFIER_LIST[public final]
+    PRIMARY_CONSTRUCTOR[fqName=null, hasBody=false, isDelegatedCallToThis=false, isExtension=false, isTopLevel=false, name=Delegation]
+      MODIFIER_LIST[public]
+      VALUE_PARAMETER_LIST
+        VALUE_PARAMETER[fqName=null, hasDefaultValue=true, hasValOrVar=false, isMutable=false, name=c]
+          TYPE_REFERENCE
+            USER_TYPE
+              USER_TYPE
+                REFERENCE_EXPRESSION[referencedName=kotlin]
+              REFERENCE_EXPRESSION[referencedName=Int]
+          REFERENCE_EXPRESSION[referencedName=COMPILED_CODE]
+        VALUE_PARAMETER[fqName=null, hasDefaultValue=false, hasValOrVar=false, isMutable=false, name=a]
+          TYPE_REFERENCE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=A]
+    SUPER_TYPE_LIST
+      SUPER_TYPE_ENTRY
+        TYPE_REFERENCE
+          USER_TYPE
+            REFERENCE_EXPRESSION[referencedName=T]
+    CLASS_BODY
+      PROPERTY[fqName=Delegation.c, hasDelegate=false, hasDelegateExpression=false, hasInitializer=false, hasReturnTypeRef=true, isExtension=false, isTopLevel=false, isVar=false, name=c]
+        MODIFIER_LIST[public final]
+        TYPE_REFERENCE
+          USER_TYPE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=kotlin]
+            REFERENCE_EXPRESSION[referencedName=Int]
+      PROPERTY[fqName=Delegation.g, hasDelegate=false, hasDelegateExpression=false, hasInitializer=false, hasReturnTypeRef=true, isExtension=false, isTopLevel=false, isVar=false, name=g]
+        MODIFIER_LIST[open public]
+        TYPE_REFERENCE
+          USER_TYPE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=kotlin]
+            REFERENCE_EXPRESSION[referencedName=Int]
+      FUN[fqName=Delegation.ff, hasBlockBody=true, hasBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=false, isTopLevel=false, mayHaveContract=false, name=ff]
+        MODIFIER_LIST[public final]
+        VALUE_PARAMETER_LIST
+        TYPE_REFERENCE
+          USER_TYPE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=kotlin]
+            REFERENCE_EXPRESSION[referencedName=Int]
+      FUN[fqName=Delegation.f, hasBlockBody=true, hasBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=false, isTopLevel=false, mayHaveContract=false, name=f]
+        MODIFIER_LIST[open public]
+        VALUE_PARAMETER_LIST
+        TYPE_REFERENCE
+          USER_TYPE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=kotlin]
+            REFERENCE_EXPRESSION[referencedName=Unit]

analysis/decompiled/decompiler-to-file-stubs/testData/clsFileStubBuilder/Delegation/Delegation.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 interface T {
     fun f()
     val g: Int

analysis/decompiled/decompiler-to-file-stubs/testData/clsFileStubBuilder/Delegation/Delegation.txt

@@ -30,6 +30,21 @@ PsiJetFileStubImpl[package=]
             USER_TYPE
               REFERENCE_EXPRESSION[referencedName=kotlin]
             REFERENCE_EXPRESSION[referencedName=Int]
+      PROPERTY[fqName=Delegation.g, hasDelegate=false, hasDelegateExpression=false, hasInitializer=false, hasReturnTypeRef=true, isExtension=false, isTopLevel=false, isVar=false, name=g]
+        MODIFIER_LIST[open public]
+        TYPE_REFERENCE
+          USER_TYPE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=kotlin]
+            REFERENCE_EXPRESSION[referencedName=Int]
+      FUN[fqName=Delegation.f, hasBlockBody=true, hasBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=false, isTopLevel=false, mayHaveContract=false, name=f]
+        MODIFIER_LIST[open public]
+        VALUE_PARAMETER_LIST
+        TYPE_REFERENCE
+          USER_TYPE
+            USER_TYPE
+              REFERENCE_EXPRESSION[referencedName=kotlin]
+            REFERENCE_EXPRESSION[referencedName=Unit]
       FUN[fqName=Delegation.ff, hasBlockBody=true, hasBody=true, hasTypeParameterListBeforeFunctionName=false, isExtension=false, isTopLevel=false, mayHaveContract=false, name=ff]
         MODIFIER_LIST[public final]
         VALUE_PARAMETER_LIST

analysis/decompiled/decompiler-to-psi/src/org/jetbrains/kotlin/analysis/decompiler/psi/text/buildDecompiledText.kt

@@ -1,11 +1,10 @@
 /*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
 package org.jetbrains.kotlin.analysis.decompiler.psi.text
 
-import com.intellij.openapi.util.TextRange
 import org.jetbrains.kotlin.analysis.decompiler.stub.COMPILED_DEFAULT_INITIALIZER
 import org.jetbrains.kotlin.analysis.decompiler.stub.COMPILED_DEFAULT_PARAMETER_VALUE
 import org.jetbrains.kotlin.builtins.StandardNames
@@ -20,7 +19,6 @@ import org.jetbrains.kotlin.renderer.DescriptorRendererOptions
 import org.jetbrains.kotlin.renderer.render
 import org.jetbrains.kotlin.resolve.DataClassDescriptorResolver
 import org.jetbrains.kotlin.resolve.DescriptorUtils.isEnumEntry
-import org.jetbrains.kotlin.resolve.constants.*
 import org.jetbrains.kotlin.resolve.descriptorUtil.secondaryConstructors
 import org.jetbrains.kotlin.types.isFlexible
 import org.jetbrains.kotlin.util.OperatorNameConventions
@@ -46,11 +44,8 @@ fun DescriptorRendererOptions.defaultDecompilerRendererOptions() {
 
 internal fun CallableMemberDescriptor.mustNotBeWrittenToDecompiledText(): Boolean {
     return when (kind) {
-        CallableMemberDescriptor.Kind.DECLARATION -> false
-
-        CallableMemberDescriptor.Kind.FAKE_OVERRIDE,
-        CallableMemberDescriptor.Kind.DELEGATION -> true
-
+        CallableMemberDescriptor.Kind.DECLARATION, CallableMemberDescriptor.Kind.DELEGATION -> false
+        CallableMemberDescriptor.Kind.FAKE_OVERRIDE -> true
         CallableMemberDescriptor.Kind.SYNTHESIZED -> {
             // Of all synthesized functions, only `component*` functions are rendered (for historical reasons)
             !DataClassDescriptorResolver.isComponentLike(name) && name !in listOf(

analysis/decompiled/decompiler-to-stubs/src/org/jetbrains/kotlin/analysis/decompiler/stub/CallableClsStubBuilder.kt

@@ -1,4 +1,7 @@
-// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
 
 package org.jetbrains.kotlin.analysis.decompiler.stub
 
@@ -6,8 +9,8 @@ import com.intellij.psi.PsiElement
 import com.intellij.psi.stubs.StubElement
 import com.intellij.util.io.StringRef
 import org.jetbrains.kotlin.analysis.decompiler.stub.flags.*
-import org.jetbrains.kotlin.constant.ConstantValue
 import org.jetbrains.kotlin.builtins.StandardNames
+import org.jetbrains.kotlin.constant.ConstantValue
 import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationUseSiteTarget
 import org.jetbrains.kotlin.load.kotlin.*
@@ -28,9 +31,9 @@ import org.jetbrains.kotlin.resolve.constants.ClassLiteralValue
 import org.jetbrains.kotlin.serialization.deserialization.AnnotatedCallableKind
 import org.jetbrains.kotlin.serialization.deserialization.ProtoContainer
 import org.jetbrains.kotlin.serialization.deserialization.getName
-import org.jetbrains.kotlin.utils.addToStdlib.runIf
 import org.jetbrains.kotlin.util.OperatorNameConventions
 import org.jetbrains.kotlin.utils.addIfNotNull
+import org.jetbrains.kotlin.utils.addToStdlib.runIf
 
 const val COMPILED_DEFAULT_INITIALIZER = "COMPILED_CODE"
 
@@ -85,7 +88,7 @@ fun createConstructorStub(
 
 private fun shouldSkip(flags: Int, name: Name): Boolean {
     return when (Flags.MEMBER_KIND.get(flags)) {
-        MemberKind.FAKE_OVERRIDE, MemberKind.DELEGATION -> true
+        MemberKind.FAKE_OVERRIDE -> true
         //TODO: fix decompiler to use sane criteria
         MemberKind.SYNTHESIZED -> !DataClassResolver.isComponentLike(name) && name !in listOf(
             OperatorNameConventions.EQUALS,