Don't force complete annotation unpickling when testing for SilentIntoAnnot

Fixes #23496

Author: odersky

compiler/src/dotty/tools/dotc/core/tasty/TreeUnpickler.scala

@@ -668,7 +668,7 @@ class TreeUnpickler(reader: TastyReader,
       val annotOwner =
         if sym.owner.isClass then newLocalDummy(sym.owner) else sym.owner
       var annots = annotFns.map(_(annotOwner))
-      if annots.exists(_.symbol == defn.SilentIntoAnnot) then
+      if annots.exists(_.hasSymbol(defn.SilentIntoAnnot)) then
         // Temporary measure until we can change TastyFormat to include an INTO tag
         sym.setFlag(Into)
         annots = annots.filterNot(_.symbol == defn.SilentIntoAnnot)

tests/pos/i23496/BaseLineSpec_2.scala

@@ -0,0 +1,2 @@
+package scalaql
+import scalaql.fixture.*

tests/pos/i23496/Query_1.scala

@@ -0,0 +1,3 @@
+package scalaql
+
+import scala.annotation.unchecked.uncheckedVariance // unused

tests/pos/i23496/ScalaqlSyntax_1.scala

@@ -0,0 +1,4 @@
+package scalaql.syntax
+
+@scalaql.forbiddenInheritance
+trait ScalaqlSyntax

tests/pos/i23496/annotations_1.scala

@@ -0,0 +1,5 @@
+package scalaql
+
+import scala.annotation.StaticAnnotation
+
+class forbiddenInheritance extends StaticAnnotation

tests/pos/i23496/fixture_2.scala

@@ -0,0 +1 @@
+package scalaql.fixture

tests/pos/i23496/package.scala_1.scala

@@ -0,0 +1,3 @@
+import scalaql.syntax.ScalaqlSyntax
+
+package object scalaql extends ScalaqlSyntax