Add jdk jars to kotlin classpath

#KT-4214 Fixed

libraries/tools/kdoc/src/test/kotlin/test/kotlin/psiUtilsTest.kt

@@ -32,7 +32,7 @@ class PsiUtilsTest {
         System.setProperty("java.awt.headless", "true")
 
         val configuration = CompilerConfiguration()
-        configuration.add(JVMConfigurationKeys.CLASSPATH_KEY, PathUtil.findRtJar())
+        configuration.addAll(JVMConfigurationKeys.CLASSPATH_KEY, PathUtil.getJdkClassesRoots())
         environment = JetCoreEnvironment.createForTests(rootDisposable, configuration)
     }