[KPM] :kotlin-gradle-plugin-idea Make entities data classes

This is done to benefit from .equals and hashcode functions.
The goal is to keep .copy methods stable whereas using any
.component* function shall be avoided

^KT-51262

libraries/tools/kotlin-gradle-plugin-idea/ReadMe.md

@@ -1,13 +1,24 @@
 # Kotlin Gradle Plugin Models shared between IDEA import and KGP
-The classes defined in this module will be available inside the Kotlin Gradle Plugin (KGP) 
+
+The classes defined in this module will be available inside the Kotlin Gradle Plugin (KGP)
 as well as in the IDE import (GradleProject).
 
-## Binary Compatibility: 
+## Binary Compatibility:
+
 Binary compatibility can be tested by
 `./gradlew :tools:binary-compatibility-validator:clean :tools:binary-compatibility-validator:test`
 
 Binary incompatible changes have to go through a proper deprecation cycle after releases
 
 ### Unstable APIs / KotlinGradlePluginApi
-Some APIs are marked with 'KotlinGradlePluginApi' which means, that those are not kept binary compatible and are considered 'unstable'
+
-from the IDEA perspective. Typically constructors for models are marked like this
+Some APIs are marked with 'KotlinGradlePluginApi' which means, that those are not kept binary compatible and are considered 'unstable' from
+the IDEA perspective. Typically constructors for models are marked like this
+
+Non Stable by default:
+
+- data class componentX methods
+
+Kept Stable
+
+- data class .copy methods

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragment.kt

@@ -16,7 +16,7 @@ interface IdeaKotlinFragment : Serializable {
     val resourceDirectories: Collection<IdeaKotlinResourceDirectory>
 }
 
-class IdeaKotlinFragmentImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinFragmentImpl @KotlinGradlePluginApi constructor(
     override val name: String,
     override val languageSettings: IdeaKotlinLanguageSettings?,
     override val dependencies: Collection<IdeaKotlinFragmentDependency>,

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinFragmentDependency.kt

@@ -5,4 +5,6 @@
 
 package org.jetbrains.kotlin.gradle.kpm.idea
 
-interface IdeaKotlinFragmentDependency
+import java.io.Serializable
+
+interface IdeaKotlinFragmentDependency : Serializable

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinLanguageSettings.kt

@@ -6,8 +6,9 @@
 package org.jetbrains.kotlin.gradle.kpm.idea
 
 import java.io.File
+import java.io.Serializable
 
-interface IdeaKotlinLanguageSettings {
+interface IdeaKotlinLanguageSettings : Serializable {
     val languageVersion: String?
     val apiVersion: String?
     val isProgressiveMode: Boolean
@@ -18,7 +19,7 @@ interface IdeaKotlinLanguageSettings {
     val freeCompilerArgs: Collection<String>
 }
 
-class IdeaKotlinLanguageSettingsImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinLanguageSettingsImpl @KotlinGradlePluginApi constructor(
     override val languageVersion: String?,
     override val apiVersion: String?,
     override val isProgressiveMode: Boolean,

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModule.kt

@@ -12,7 +12,7 @@ interface IdeaKotlinModule : Serializable {
     val fragments: Collection<IdeaKotlinFragment>
 }
 
-class IdeaKotlinModuleImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinModuleImpl @KotlinGradlePluginApi constructor(
     override val moduleIdentifier: IdeaKotlinModuleIdentifier,
     override val fragments: Collection<IdeaKotlinFragment>
 ) : IdeaKotlinModule

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinModuleIdentifier.kt

@@ -21,13 +21,13 @@ interface IdeaKotlinMavenModuleIdentifier : IdeaKotlinModuleIdentifier {
     val name: String
 }
 
-class IdeaKotlinLocalModuleIdentifierImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinLocalModuleIdentifierImpl @KotlinGradlePluginApi constructor(
     override val moduleClassifier: String?,
     override val buildId: String,
     override val projectId: String
 ) : IdeaKotlinLocalModuleIdentifier
 
-class IdeaKotlinMavenModuleIdentifierImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinMavenModuleIdentifierImpl @KotlinGradlePluginApi constructor(
     override val moduleClassifier: String?,
     override val group: String,
     override val name: String

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinProjectModel.kt

@@ -15,7 +15,7 @@ interface IdeaKotlinProjectModel : Serializable {
     val modules: List<IdeaKotlinModule>
 }
 
-class IdeaKotlinProjectModelImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinProjectModelImpl @KotlinGradlePluginApi constructor(
     override val coreLibrariesVersion: String,
     override val explicitApiModeCliOption: String?,
     override val kotlinNativeHome: File,

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinResourceDirectory.kt

@@ -12,6 +12,6 @@ interface IdeaKotlinResourceDirectory : Serializable {
     val file: File
 }
 
-class IdeaKotlinResourceDirectoryImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinResourceDirectoryImpl @KotlinGradlePluginApi constructor(
     override val file: File
 ) : IdeaKotlinResourceDirectory

libraries/tools/kotlin-gradle-plugin-idea/src/main/kotlin/org/jetbrains/kotlin/gradle/kpm/idea/IdeaKotlinSourceDirectory.kt

@@ -12,6 +12,6 @@ interface IdeaKotlinSourceDirectory : Serializable {
     val file: File
 }
 
-class IdeaKotlinSourceDirectoryImpl @KotlinGradlePluginApi constructor(
+data class IdeaKotlinSourceDirectoryImpl @KotlinGradlePluginApi constructor(
     override val file: File,
 ) : IdeaKotlinSourceDirectory