Create temporary library directories for J2V8.

Workaround for https://github.com/eclipsesource/J2V8/issues/39

js/js.tests/test/org/jetbrains/kotlin/js/test/interop/ScriptEngineV8.kt

@@ -9,9 +9,20 @@ import com.eclipsesource.v8.V8
 import com.eclipsesource.v8.V8Array
 import com.eclipsesource.v8.V8Object
 import com.eclipsesource.v8.utils.V8ObjectUtils
+import com.intellij.openapi.util.io.FileUtil
 import java.io.File
 
 class ScriptEngineV8 : ScriptEngine {
+    companion object {
+        // It's important that this is not created per test, but rather per process.
+        val LIBRARY_PATH_BASE = FileUtil.createTempDirectory(
+            File(System.getProperty("java.io.tmpdir")),
+            "j2v8_library_path",
+            "",
+            true
+        ).path
+    }
+
     override fun <T> releaseObject(t: T) {
         (t as? V8Object)?.release()
     }
@@ -22,7 +33,7 @@ class ScriptEngineV8 : ScriptEngine {
         return context.also { v8result.release() }
     }
 
-    private val myRuntime: V8 = V8.createV8Runtime("global")
+    private val myRuntime: V8 = V8.createV8Runtime("global", LIBRARY_PATH_BASE)
 
     @Suppress("UNCHECKED_CAST")
     override fun <T> eval(script: String): T {