Make i13044 more resilient (#18710)

This tests that we handle stack overflows correctly. Due to some general
improvements we are closer to not reaching the stack overflow.
Therefore, we make this tests unroll a few more inlines to make sure
that this stack overflow is reached.

tests/neg/i13044.check

@@ -1,5 +1,5 @@
--- Error: tests/neg/i13044.scala:50:40 ---------------------------------------------------------------------------------
-50 |   implicit def typeSchema: Schema[A] = Schema.gen // error // error
+-- Error: tests/neg/i13044.scala:65:40 ---------------------------------------------------------------------------------
+65 |   implicit def typeSchema: Schema[A] = Schema.gen // error // error
    |                                        ^^^^^^^^^^
    |                                        given instance gen is declared as `inline`, but was not inlined
    |
@@ -71,8 +71,8 @@
 37 |  inline given gen[A]: Schema[A] = derived
    |                                   ^^^^^^^
     --------------------------------------------------------------------------------------------------------------------
--- Error: tests/neg/i13044.scala:50:40 ---------------------------------------------------------------------------------
-50 |   implicit def typeSchema: Schema[A] = Schema.gen // error // error
+-- Error: tests/neg/i13044.scala:65:40 ---------------------------------------------------------------------------------
+65 |   implicit def typeSchema: Schema[A] = Schema.gen // error // error
    |                                        ^^^^^^^^^^
    |                                        method recurse is declared as `inline`, but was not inlined
    |

tests/neg/i13044.scala

@@ -37,7 +37,22 @@ trait SchemaDerivation {
   inline given gen[A]: Schema[A] = derived
 }
 
-case class H(i: Int)
+case class X15(i: Int)
+case class X14(i: X15)
+case class X13(i: X14)
+case class X12(i: X13)
+case class X11(i: X12)
+case class X10(i: X11)
+case class X9(i: X10)
+case class X8(i: X9)
+case class X7(i: X8)
+case class X6(i: X7)
+case class X5(i: X6)
+case class X4(i: X5)
+case class X3(i: X4)
+case class X2(i: X3)
+case class X1(i: X2)
+case class H(i: X1)
 case class G(h: H)
 case class F(g: G)
 case class E(f: Option[F])