invokedynamic API promotion : replace injectedClassNames

[SylvainJuge]

This is part of #13031

The injectedClassNames allows to indicate which classes should be loaded in the instrumentation target classloader

suggestions to replace injectedClassNames :

• with method on ClassInjector (as suggested in Next steps to making the invokedynamic instrumentation approach the default #13031)
• with something else, for example trying to leverage muzzle to generate this at build time if we can.