[K/N][perf] Performance project build

* Add build-tools plugin
* Cleanup code
* Add missing methods after the move

kotlin-native/tools/performance-server/build.gradle.kts

@@ -13,7 +13,8 @@ buildscript {
     }
 
     extra["withoutEmbedabble"] = true
-    project.kotlinInit(findProperty("cacheRedirectorEnabled")?.toString()?.toBoolean() ?: false)
+    extra["defaultSnapshotVersion"] = kotlinBuildProperties.defaultSnapshotVersion
+    extra["kotlinVersion"] = findProperty("kotlinVersion")
     val bootstrapKotlinVersion: String by extra(project.bootstrapKotlinVersion)
     val kotlinVersion: String by extra(bootstrapKotlinVersion)
 

kotlin-native/tools/performance-server/buildSrc/build.gradle.kts

@@ -34,23 +34,22 @@ repositories {
     mavenCentral()
 }
 
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(8))
+    }
+}
+
 tasks.validatePlugins.configure {
     enabled = false
 }
 
-sourceSets["main"].withConvention(org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet::class) {
-    kotlin.filter.exclude("**/FileCheckTest.kt")
-    // TODO: Consider moving required stuff from kotlin-native/build-tools/ to buildSrc/ here.
-    kotlin.filter.exclude("**/bitcode/**")
-    kotlin.filter.exclude("**/cpp/**")
-    kotlin.filter.exclude("**/testing/**")
-
-    kotlin.srcDir("../../../build-tools/src/main/kotlin")
-    kotlin.srcDir("../../../performance/buildSrc/src/main/kotlin")
-    kotlin.srcDir("../../../shared/src/library/kotlin")
-    kotlin.srcDir("../../../shared/src/main/kotlin")
-    kotlin.srcDir("../../benchmarks/shared/src/main/kotlin/report")
-    kotlin.srcDir("../../../../native/utils/src")
+sourceSets["main"].kotlin {
+    srcDir("../../../performance/buildSrc/src/main/kotlin")
+    srcDir("../../../shared/src/library/kotlin")
+    srcDir("../../../shared/src/main/kotlin")
+    srcDir("../../benchmarks/shared/src/main/kotlin/report")
+    srcDir("../../../../native/utils/src")
 }
 
 tasks.withType<KotlinCompile>().configureEach {