Restore fix #1599

subprojects/analysis-kotlin-descriptors/compiler/src/main/kotlin/org/jetbrains/dokka/analysis/kotlin/descriptors/compiler/configuration/JvmDependenciesIndexImpl.kt

@@ -14,23 +14,27 @@
  * limitations under the License.
  */
 
-package org.jetbrains.dokka.analysis.kotlin.descriptors.compiler.configuration
+/**
+ * DO NOT MOVE IT
+ * This is a hack for https://github.com/Kotlin/dokka/issues/1599
+ *
+ * It makes this class threadsafe for Dokka
+ */
+package org.jetbrains.kotlin.cli.jvm.index
 
 import com.intellij.ide.highlighter.JavaClassFileType
 import com.intellij.ide.highlighter.JavaFileType
 import com.intellij.openapi.vfs.VfsUtilCore
 import com.intellij.openapi.vfs.VirtualFile
 import gnu.trove.THashMap
 import it.unimi.dsi.fastutil.ints.IntArrayList
-import org.jetbrains.kotlin.cli.jvm.index.JavaRoot
-import org.jetbrains.kotlin.cli.jvm.index.JvmDependenciesIndex
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 
 // speeds up finding files/classes in classpath/java source roots
 // NOT THREADSAFE, needs to be adapted/removed if we want compiler to be multithreaded
 // the main idea of this class is for each package to store roots which contains it to avoid excessive file system traversal
-internal class JvmDependenciesIndexImpl(_roots: List<JavaRoot>) : JvmDependenciesIndex {
+class JvmDependenciesIndexImpl(_roots: List<JavaRoot>) : JvmDependenciesIndex {
     //these fields are computed based on _roots passed to constructor which are filled in later
     private val roots: List<JavaRoot> by lazy { _roots.toList() }