[Reconciler][Sealed types] Extra errors in editor that go away on file save

[srikanth-sankaran]

interface SuperInt {}
 
abstract sealed class Maybe<N extends Number> {
	final class Maybe1 extends Maybe<Long> {}
	final class Maybe2 extends Maybe<Long> implements SuperInt {}
}
   
class Test {

	void testMaybe(Maybe<?> maybe) {
		if (maybe == null) return;
		zork(); 
	}
}  

Make any change to the edit buffer - two bogus errors show up in the editor but not in the problems view:

The type Maybe1 extending a sealed class Maybe<Long> should be a permitted subtype of Maybe<Long>
The type Maybe2 extending a sealed class Maybe<Long> should be a permitted subtype of Maybe<Long>

Save the file, problems vanish. They reappear when buffer is changed.