Add a final override for project in KotlinGradleFragmentInternal

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/pm20/KotlinGradleFragment.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.gradle.plugin.mpp.pm20
 
 import groovy.lang.Closure
 import org.gradle.api.NamedDomainObjectProvider
+import org.gradle.api.Project
 import org.gradle.api.file.SourceDirectorySet
 import org.gradle.api.provider.Provider
 import org.gradle.util.ConfigureUtil
@@ -30,6 +31,9 @@ open class KotlinGradleFragmentInternal @Inject constructor(
 
     override fun getName(): String = fragmentName
 
+    final override val project: Project // overriding with final to avoid warnings
+        get() = super.project
+
     // TODO pull up to KotlinModuleFragment
     // FIXME apply to compilation
     // FIXME check for consistency
@@ -85,11 +89,10 @@ open class KotlinGradleFragmentInternal @Inject constructor(
     override val declaredModuleDependencies: Iterable<KotlinModuleDependency>
         get() = project.configurations.getByName(apiConfigurationName).allDependencies.map { it.toModuleDependency(project) } // FIXME impl
 
-    override val kotlinSourceRoots: SourceDirectorySet by lazy {
+    override val kotlinSourceRoots: SourceDirectorySet =
         project.objects.sourceDirectorySet(
             "$fragmentName.kotlin", "Kotlin sources for fragment $fragmentName"
         )
-    }
 
     override val transitiveApiConfigurationName: String
         get() = disambiguateName("transitiveApi")

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/pm20/abstractVariants.kt

@@ -27,9 +27,6 @@ abstract class KotlinGradleVariantInternal(
     override val fragmentName: String
 ) : KotlinGradleFragmentInternal(containingModule, fragmentName), KotlinGradleVariant {
 
-    final override val project: Project // overriding with final to avoid warnings
-        get() = super<KotlinGradleFragmentInternal>.project
-
     override val variantAttributes: Map<KotlinAttributeKey, String>
         get() = mapOf(KotlinPlatformTypeAttribute to kotlinPlatformTypeAttributeFromPlatform(platformType)) // TODO user attributes