[Gradle][Minor] Move KotlinCompilationOutput into separate source file

KT-54312

libraries/tools/kotlin-gradle-plugin-api/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinCompilation.kt

@@ -11,21 +11,11 @@ import org.gradle.api.Action
 import org.gradle.api.Named
 import org.gradle.api.attributes.AttributeContainer
 import org.gradle.api.attributes.HasAttributes
-import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.api.file.FileCollection
 import org.gradle.api.tasks.TaskProvider
 import org.jetbrains.kotlin.gradle.dsl.KotlinCommonOptionsDeprecated
 import org.jetbrains.kotlin.gradle.dsl.KotlinCompileDeprecated
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask
-import java.io.File
-
-interface KotlinCompilationOutput {
-    var resourcesDirProvider: Any
-    val resourcesDir: File
-    val classesDirs: ConfigurableFileCollection
-
-    val allOutputs: FileCollection
-}
 
 interface KotlinCompilation<out T : KotlinCommonOptionsDeprecated> : Named,
     HasAttributes,

libraries/tools/kotlin-gradle-plugin-api/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinCompilationOutput.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2022 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.gradle.plugin
+
+import org.gradle.api.file.ConfigurableFileCollection
+import org.gradle.api.file.FileCollection
+import java.io.File
+
+interface KotlinCompilationOutput {
+    var resourcesDirProvider: Any
+    val resourcesDir: File
+    val classesDirs: ConfigurableFileCollection
+    val allOutputs: FileCollection
+}