Backport "Fix tupleTypeFromSeq for XXL tuples" to 3.3 LTS

library/src/scala/quoted/Expr.scala

@@ -256,7 +256,7 @@ object Expr {
   private def tupleTypeFromSeq(seq: Seq[Expr[Any]])(using Quotes): quotes.reflect.TypeRepr =
     import quotes.reflect.*
     val consRef = Symbol.classSymbol("scala.*:").typeRef
-    seq.foldLeft(TypeRepr.of[EmptyTuple]) { (ts, expr) =>
+    seq.foldRight(TypeRepr.of[EmptyTuple]) { (expr, ts) =>
       AppliedType(consRef, expr.asTerm.tpe :: ts :: Nil)
     }
 

tests/pos/i21779/Macro_1.scala

@@ -0,0 +1,36 @@
+import scala.quoted.*
+
+object Macro:
+  transparent inline def tupleXxl: Tuple =
+    ${tupleXxlExpr}
+
+  def tupleXxlExpr(using Quotes) =
+    import quotes.reflect.*
+    Expr.ofTupleFromSeq(
+      Seq(
+        Expr("a"),
+        Expr(2),
+        Expr(3),
+        Expr(4),
+        Expr(5),
+        Expr(6),
+        Expr(7),
+        Expr(8),
+        Expr(9),
+        Expr(10),
+        Expr(11),
+        Expr(12),
+        Expr(13),
+        Expr(14),
+        Expr(15),
+        Expr(16),
+        Expr(17),
+        Expr(18),
+        Expr(19),
+        Expr(20),
+        Expr(21),
+        Expr(22),
+        Expr(23),
+      )
+    )
+

tests/pos/i21779/Test_2.scala

@@ -0,0 +1,3 @@
+object Test:
+  val result: ("a", 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23) =
+    Macro.tupleXxl