Add transparent inline test

Author: nicolasstucki

tests/run/i8577i.scala

@@ -0,0 +1,16 @@
+import scala.quoted._
+
+object Macro:
+  opaque type StrCtx = StringContext
+  def apply(ctx: StringContext): StrCtx = ctx
+  def unapply(ctx: StrCtx): Option[StringContext] = Some(ctx)
+
+extension (ctx: StringContext) def mac: Macro.StrCtx = Macro(ctx)
+extension (inline ctx: Macro.StrCtx) transparent inline def unapplySeq(inline input: String): Option[Seq[Any]] =
+  Some(Seq(123))
+
+@main def Test: Unit =
+  "abc" match
+    case mac"$x" =>
+      val y: Int = x
+      assert(x == 123)