Support static final write$Self method inside serializable classes on IR

to properly serialize class hierarchies with/or private fields.
JVM only for now, because Native/JS do not have private fields.
Update tests and test data and rebase fix.
Unify formEncodeDecodePropertyCall functions.
Fix incorrect reference to object in writeSelf,
so properties dependent on other properties would be correctly compared
with defaults.

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/DuplicateSerialName.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/DuplicateSerialName.txt

@@ -7,6 +7,8 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Derived, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
+    @kotlin.jvm.JvmStatic public final override /*1*/ /*fake_override*/ fun `write$Self`(/*0*/ self: Parent, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Derived> {
         private constructor `$serializer`()
@@ -36,6 +38,7 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Parent, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Parent> {
         private constructor `$serializer`()

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/NoSuitableCtorInParent.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/NoSuitableCtorInParent.txt

@@ -8,6 +8,7 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Derived, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Derived> {
         private constructor `$serializer`()

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/NonSerializable.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/NonSerializable.txt

@@ -7,6 +7,7 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Basic, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Basic> {
         private constructor `$serializer`()
@@ -36,6 +37,7 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Inside, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Inside> {
         private constructor `$serializer`()
@@ -72,6 +74,7 @@ public final class NonSerializable {
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: WithImplicitType, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<WithImplicitType> {
         private constructor `$serializer`()

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/NullabilityIncompatible.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 import kotlinx.serialization.descriptors.*

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/NullabilityIncompatible.txt

@@ -7,6 +7,7 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Foo, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Foo> {
         private constructor `$serializer`()

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/ParamIsNotProperty.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/ParamIsNotProperty.txt

@@ -7,6 +7,7 @@ package
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: Test, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<Test> {
         private constructor `$serializer`()

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/SerializableEnums.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 import kotlinx.serialization.encoding.*

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/SerializableEnums.txt

@@ -23,6 +23,7 @@ public object EnumSerializer : kotlinx.serialization.KSerializer<ExplicitlyMarke
     public open override /*1*/ /*synthesized*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*synthesized*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*synthesized*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: EnumUsage, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<EnumUsage> {
         private constructor `$serializer`()

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/Transients.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER,-UNUSED_VARIABLE
-
+// WITH_RUNTIME
 // FILE: test.kt
 import kotlinx.serialization.*
 

plugins/kotlin-serialization/kotlin-serialization-compiler/testData/diagnostics/Transients.txt

@@ -11,6 +11,7 @@ package
     public open override /*1*/ /*synthesized*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*synthesized*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*synthesized*/ fun toString(): kotlin.String
+    @kotlin.jvm.JvmStatic public final /*synthesized*/ fun `write$Self`(/*0*/ self: WithTransients, /*1*/ output: kotlinx.serialization.encoding.CompositeEncoder, /*2*/ serialDesc: kotlinx.serialization.descriptors.SerialDescriptor): kotlin.Unit
 
     @kotlin.Deprecated(level = DeprecationLevel.HIDDEN, message = "This synthesized declaration should not be used directly", replaceWith = kotlin.ReplaceWith(expression = "", imports = {})) public object `$serializer` : kotlinx.serialization.internal.GeneratedSerializer<WithTransients> {
         private constructor `$serializer`()