This change introduces tracking of generated sources structure in order
to e.g track classpath changes impacting generated sources. This fixes KT-42182.
Also, origin tracking for isolating processors is now using types, allowing
for origin elements from classpath. This fixes KT-34340. However, classpath
origin is used only to invalidate generated files when the type changes and
processing will not be requested for that type. This is in line with the
incap spec.
Ivan Gavrilovic
c7e5beece5