[K2] Fix "Modules are inconsistent" in the SequentialTasksExecutionStressTest test

Author: vmishenev

dokka-integration-tests/gradle/projects/it-sequential-tasks-execution-stress/build.gradle.kts

@@ -27,9 +27,9 @@ fun createTask(name: String) {
         dokkaSourceSets {
             moduleName.set("Some example")
             register("kotlin-stdlib-common") {
-                sourceRoots.from("src/main/java")
-                sourceRoots.from("src/main/kotlin")
-                samples.from("src/main/kotlin")
+                sourceRoots.from("src/common/java")
+                sourceRoots.from("src/common/kotlin")
+                samples.from("src/common/kotlin")
             }
         }
     }

dokka-integration-tests/gradle/projects/it-sequential-tasks-execution-stress/src/common/java/it/basic/java/SampleJavaClass.java

@@ -0,0 +1,17 @@
+package it.basic.java;
+
+import it.basic.PublicClass;
+
+/**
+ * This class is, unlike {@link PublicClass}, written in Java
+ */
+@SuppressWarnings("unused")
+public class SampleJavaClass {
+
+    /**
+     * @return Empty instance of {@link PublicClass}
+     */
+    public PublicClass publicDocumentedFunction() {
+        return new PublicClass();
+    }
+}

dokka-integration-tests/gradle/projects/it-sequential-tasks-execution-stress/src/common/kotlin/RootPackageClass.kt

@@ -0,0 +1,8 @@
+@file:Suppress("unused")
+
+/**
+ * A class that lives inside the root package
+ */
+class RootPackageClass {
+    val description = "I do live in the root package!"
+}