Add tests for kotlin.incremental.useClasspathSnapshot feature

This ensures we don't regress when developing the feature.

Bug: KT-45777
Test: New IncrementalCompilationClasspathSnapshotJvmMultiProjectIT
      and IncrementalJavaChangeClasspathSnapshotIT

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/BaseGradleIT.kt

@@ -241,6 +241,7 @@ abstract class BaseGradleIT {
         val kotlinVersion: String = KOTLIN_VERSION,
         val kotlinDaemonDebugPort: Int? = null,
         val usePreciseJavaTracking: Boolean? = null,
+        val useClasspathSnapshot: Boolean? = null,
         val withBuildCache: Boolean = false,
         val kaptOptions: KaptOptions? = null,
         val parallelTasksInProject: Boolean = false,
@@ -913,6 +914,7 @@ Finished executing task ':$taskName'|
             options.incrementalJsKlib?.let { add("-Pkotlin.incremental.js.klib=$it") }
             options.jsIrBackend?.let { add("-Pkotlin.js.useIrBackend=$it") }
             options.usePreciseJavaTracking?.let { add("-Pkotlin.incremental.usePreciseJavaTracking=$it") }
+            options.useClasspathSnapshot?.let { add("-Pkotlin.incremental.useClasspathSnapshot=$it") }
             options.androidGradlePluginVersion?.let { add("-Pandroid_tools_version=$it") }
             if (options.debug) {
                 add("-Dorg.gradle.debug=true")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalCompilationBaseIT.kt

@@ -13,6 +13,8 @@ abstract class IncrementalCompilationBaseIT : BaseGradleIT() {
 
     protected abstract fun defaultProject(): Project
 
+    override fun defaultBuildOptions() = super.defaultBuildOptions().copy(incremental = true)
+
     protected fun doTest(
         fileToModify: String,
         modifyFileContents: (String) -> String,

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalCompilationMultiProjectIT.kt

@@ -145,9 +145,11 @@ class IncrementalCompilationFirJvmMultiProjectIT : IncrementalCompilationJvmMult
     }
 }
 
+class IncrementalCompilationClasspathSnapshotJvmMultiProjectIT : IncrementalCompilationJvmMultiProjectIT() {
+    override fun defaultBuildOptions() = super.defaultBuildOptions().copy(useClasspathSnapshot = true)
+}
+
 abstract class BaseIncrementalCompilationMultiProjectIT : IncrementalCompilationBaseIT() {
-    override fun defaultBuildOptions(): BuildOptions =
-        super.defaultBuildOptions().copy(withDaemon = true, incremental = true)
 
     @Test
     fun testAbiChangeInLib_changeMethodSignature() {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/IncrementalJavaChangeIT.kt

@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.gradle
 
 import org.junit.Test
 
-class IncrementalJavaChangeDefaultIT : IncrementalCompilationJavaChangesBase(usePreciseJavaTracking = null) {
+open class IncrementalJavaChangeDefaultIT : IncrementalCompilationJavaChangesBase(usePreciseJavaTracking = null) {
     @Test
     override fun testAbiChangeInLib_changeMethodSignature_tracked() {
         doTest(trackedJavaClass, changeSignature, expectedAffectedFileNames = listOf("TrackedJavaClassChild.kt", "useTrackedJavaClass.kt"))
@@ -19,6 +19,10 @@ class IncrementalJavaChangeDefaultIT : IncrementalCompilationJavaChangesBase(use
     }
 }
 
+class IncrementalJavaChangeClasspathSnapshotIT : IncrementalJavaChangeDefaultIT() {
+    override fun defaultBuildOptions() = super.defaultBuildOptions().copy(useClasspathSnapshot = true)
+}
+
 class IncrementalJavaChangePreciseIT : IncrementalCompilationJavaChangesBase(usePreciseJavaTracking = true) {
     @Test
     override fun testAbiChangeInLib_changeMethodSignature_tracked() {
@@ -63,9 +67,7 @@ class IncrementalFirJavaChangeDisablePreciseIT : IncrementalJavaChangeDisablePre
 
 abstract class IncrementalCompilationJavaChangesBase(val usePreciseJavaTracking: Boolean?) : IncrementalCompilationBaseIT() {
     override fun defaultProject() = Project("incrementalMultiproject")
-
-    override fun defaultBuildOptions(): BuildOptions =
-        super.defaultBuildOptions().copy(withDaemon = true, incremental = true, usePreciseJavaTracking = usePreciseJavaTracking)
+    override fun defaultBuildOptions() = super.defaultBuildOptions().copy(usePreciseJavaTracking = usePreciseJavaTracking)
 
     protected val trackedJavaClass = "TrackedJavaClass.java"
     private val javaClass = "JavaClass.java"