Add a test that is still broken after scala#23438

[Cherry-picked f791837]

Author: jchyb

tests/pos/i22593.scala renamed to tests/pos/i22593a.scala

@@ -0,0 +1,27 @@
+import scala.quoted.*
+
+package jam {
+    trait JamCoreDsl {
+        implicit inline def defaultJamConfig: this.JamConfig =
+            new JamConfig(brewRecRegex = ".*")
+        class JamConfig(val brewRecRegex: String)
+        inline def brew(implicit inline config: JamConfig): Unit = ${ brewImpl() }
+    }
+    private object internal extends JamCoreDsl
+    export internal._
+
+    def brewImpl(using q: Quotes)(): Expr[Unit] = {
+        findSelf
+        '{()}
+    }
+
+    private def findSelf(using q: Quotes): Unit = {
+        import q.reflect.*
+        def rec(s: Symbol): Option[Symbol] = s.maybeOwner match {
+            case o if o.isNoSymbol => None
+            case o if o.isClassDef => Option(o)
+            case o => rec(o)
+        }
+        rec(Symbol.spliceOwner)
+    }
+}

tests/pos/i22593b/Main.scala

@@ -0,0 +1,3 @@
+object CoreSpec  {
+  jam.brew
+}