8328680: Introduce JDK_LIB, and clean up module native compilation

Reviewed-by: erikj, jwaters

make/modules/java.scripting/Launcher.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -25,6 +25,10 @@
 
 include LauncherCommon.gmk
 
+################################################################################
+## Build jrunscript
+################################################################################
+
 $(eval $(call SetupBuildLauncher, jrunscript, \
     MAIN_CLASS := com.sun.tools.script.shell.Main, \
     JAVA_ARGS := --add-modules ALL-DEFAULT, \