Switch many common tasks defined in buildSrc to lazy creation

also refactor some locally defined tasks to the creation avoidance API

libraries/tools/kotlin-allopen/build.gradle

@@ -34,7 +34,7 @@ jar {
     manifestAttributes(manifest, project)
 }
 
-ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDepsToShadedCompiler(project, jar, {}), {})
+ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDefaultJarDepsToShadedCompiler(project, {}), {})
 
 artifacts {
     archives sourcesJar

libraries/tools/kotlin-annotation-processing/build.gradle.kts

@@ -1,5 +1,4 @@
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
-import org.gradle.api.internal.artifacts.publish.ArchivePublishArtifact
 import org.gradle.jvm.tasks.Jar
 
 description = "Kapt - Annotation processing for Kotlin"
@@ -22,13 +21,12 @@ projectTest(parallel = true) {
 
 publish()
 
-val jar: Jar by tasks
-jar.apply {
+tasks.named<Jar>("jar").configure {
     classifier = "base"
 }
 
 runtimeJar(rewriteDepsToShadedCompiler(
-    task<ShadowJar>("shadowJar") {
+    tasks.register<ShadowJar>("shadowJar") {
         from(packedJars)
     }
 ))

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-model-in-old-plugin/build.gradle.kts

@@ -42,7 +42,7 @@ kotlin.target.compilations {
     }
 }
 
-val runBenchmark by tasks.registering(JavaExec::class) {
+val runBenchmark by tasks.registering<JavaExec> {
     classpath = kotlin.target.compilations["benchmark"].run { runtimeDependencyFiles + output.allOutputs }
     main = "com.example.ABenchmarkKt"
 }

libraries/tools/kotlin-gradle-plugin-test-utils-embeddable/build.gradle.kts

@@ -28,7 +28,7 @@ dependencies {
 }
 
 runtimeJar(rewriteDepsToShadedCompiler(
-    task<ShadowJar>("shadowJar")  {
+    tasks.register<ShadowJar>("shadowJar")  {
         from(packedJars)
     }
 ))

libraries/tools/kotlin-gradle-plugin/build.gradle.kts

@@ -13,8 +13,6 @@ plugins {
 
 publish()
 
-// todo: make lazy
-val jar: Jar by tasks
 val jarContents by configurations.creating
 
 sourcesJar()
@@ -91,7 +89,7 @@ if (kotlinBuildProperties.isInJpsBuildIdeaSync) {
     configurations.compile.get().exclude("com.android.tools.external.com-intellij", "intellij-core")
 }
 
-runtimeJar(rewriteDepsToShadedCompiler(jar)) {
+runtimeJar(rewriteDefaultJarDepsToShadedCompiler()).configure {
     dependsOn(jarContents)
 
     from {

libraries/tools/kotlin-noarg/build.gradle

@@ -40,7 +40,7 @@ jar {
     manifestAttributes(manifest, project)
 }
 
-ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDepsToShadedCompiler(project, jar, {}), {})
+ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDefaultJarDepsToShadedCompiler(project, {}), {})
 
 artifacts {
     archives sourcesJar

libraries/tools/kotlin-sam-with-receiver/build.gradle

@@ -40,7 +40,7 @@ jar {
     manifestAttributes(manifest, project)
 }
 
-ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDepsToShadedCompiler(project, jar, {}), {})
+ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDefaultJarDepsToShadedCompiler(project, {}), {})
 
 artifacts {
     archives sourcesJar

libraries/tools/kotlin-serialization-unshaded/build.gradle

@@ -13,7 +13,8 @@ compileJava {
     options.fork = false
 }
 
-jar {
+TaskProvider<Jar> jar = tasks.named("jar")
+jar.configure {
     manifestAttributes(manifest, project)
 }
 

libraries/tools/kotlin-serialization/build.gradle

@@ -28,7 +28,7 @@ jar {
     manifestAttributes(manifest, project)
 }
 
-ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDepsToShadedCompiler(project, jar, {}), {})
+ArtifactsKt.runtimeJar(project, EmbeddableKt.rewriteDefaultJarDepsToShadedCompiler(project, {}), {})
 
 artifacts {
     archives sourcesJar