Ignore i22357a test case in best effort compilation

KacperFKorban · KacperFKorban · commit cd89b02183d8 · 2025-01-21T11:05:46.000+01:00
diff --git a/compiler/test/dotc/neg-best-effort-unpickling.blacklist b/compiler/test/dotc/neg-best-effort-unpickling.blacklist
@@ -15,3 +15,6 @@ overrideClass.scala
 
 # repeating <error> on a top level type definition
 i18750.scala
+
+# Crash on invalid prefix ([A] =>> Int)
+i22357a.scala
