Parallelize compiler tests

compiler/build.gradle.kts

@@ -2,10 +2,6 @@ import java.io.File
 import org.gradle.api.tasks.bundling.Jar
 import org.jetbrains.kotlin.gradle.dsl.KotlinCompile
 
-tasks.withType<Test> {
-    maxParallelForks = Math.max(Runtime.getRuntime().availableProcessors() / 2, 1)
-}
-
 plugins {
     kotlin("jvm")
     id("jps-compatible")
@@ -87,7 +83,7 @@ jar.from("../idea/resources") {
     include("META-INF/extensions/compiler.xml")
 }
 
-projectTest {
+projectTest(parallel = true) {
     dependsOn(":dist")
     workingDir = rootDir
     systemProperty("kotlin.test.script.classpath", testSourceSet.output.classesDirs.joinToString(File.pathSeparator))

compiler/container/build.gradle.kts

@@ -24,7 +24,7 @@ sourceSets {
 
 testsJar {}
 
-projectTest {
+projectTest(parallel = true) {
     dependsOn(":dist")
     workingDir = rootDir
 }

compiler/fir/fir2ir/build.gradle.kts

@@ -39,7 +39,7 @@ sourceSets {
     "test" { projectDefault() }
 }
 
-projectTest {
+projectTest(parallel = true) {
     workingDir = rootDir
 }
 

compiler/fir/psi2fir/build.gradle.kts

@@ -34,7 +34,7 @@ sourceSets {
     "test" { projectDefault() }
 }
 
-projectTest {
+projectTest(parallel = true) {
     workingDir = rootDir
 }
 

compiler/fir/resolve/build.gradle.kts

@@ -37,7 +37,7 @@ sourceSets {
     "test" { projectDefault() }
 }
 
-projectTest {
+projectTest(parallel = true) {
     workingDir = rootDir
     jvmArgs!!.removeIf { it.contains("-Xmx") }
     maxHeapSize = "3g"

compiler/incremental-compilation-impl/build.gradle.kts

@@ -30,7 +30,7 @@ sourceSets {
     "test" { projectDefault() }
 }
 
-projectTest {
+projectTest(parallel = true) {
     workingDir = rootDir
 }
 

compiler/tests-java8/build.gradle.kts

@@ -24,7 +24,7 @@ tasks.withType<KotlinCompile> {
     kotlinOptions.jvmTarget = "1.8"
 }
 
-projectTest {
+projectTest(parallel = true) {
     executable = "${rootProject.extra["JDK_18"]!!}/bin/java"
     dependsOn(":dist")
     workingDir = rootDir

compiler/tests-spec/build.gradle.kts

@@ -12,7 +12,7 @@ sourceSets {
     "test" { projectDefault() }
 }
 
-projectTest {
+projectTest(parallel = true) {
     workingDir = rootDir
 }