RFR 8004547: Extend JavaFX launcher support...

[David DeHaven]

>>>>> Cmd line                   FAC             LAUNCH_MODE JAVAFX_LAUNCH_MODE
>>>>> java -jar fxapp.jar        Present         LM_JAR       LM_JAR
>>>>> java -jar fxapp.jar        Not present     LM_JAR       [LM_JAR]
>>>>> java -cp fxapp.jar ...     Not present LM_CLASS            LM_CLASS
>>>>> java -cp somedir ...       Not present LM_CLASS            LM_CLASS

I didn't see any reliable means of testing the last case without further changes to TestHelper.java, is it that important? The code path through LauncherHelper.java should be the same for either -cp case. I can add the test case if it's important, but that will require changes to TestHelper.java to allow compiling to a directory without creating a jar file.

-DrD-