Position not set for Ident(<error>)

[sir-wabbit]

class i1@

Exception in thread "main" java.lang.AssertionError: assertion failed: position not set for Ident(<error>) # 10
	at dotty.DottyPredef$.assertFail(DottyPredef.scala:38)
	at dotty.tools.dotc.typer.Typer$.assertPositioned(Typer.scala:63)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:1899)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:1912)
	at dotty.tools.dotc.typer.Namer.typedAheadType$$anonfun$1(Namer.scala:969)
	at dotty.tools.dotc.typer.Namer.typedAheadImpl(Namer.scala:962)
	at dotty.tools.dotc.typer.Namer.typedAheadType(Namer.scala:969)
	at dotty.tools.dotc.typer.Namer.typedAheadAnnotationClass(Namer.scala:981)
	at dotty.tools.dotc.typer.Namer.typedAheadAnnotationClass(Namer.scala:980)
	at dotty.tools.dotc.typer.Namer.typedAheadAnnotationClass(Namer.scala:978)
	at dotty.tools.dotc.typer.Namer$Completer.addAnnotations$$anonfun$1(Namer.scala:753)
	at scala.compat.java8.JProcedure1.apply(JProcedure1.java:18)

AE-9fea5208d12255332071a58be4afc5275b9e8d64