Update startinfo equals for intent

With intent now persisting package behind a flag, update
appstartinfo equals to check intent.

For tests, update component to use the regular (not short) class
name. This is necessary because ComponentName equals does not
match short and long classname, this should possibly be fixed
separately and then updated here.

Test: run all appstartinfo tests with flag enabled and disabled
Bug: 369856202
Flag: android.content.flags.intent_save_to_xml_package

Change-Id: If13803ff61fb04518d3e9f526a85a62774265af7