Tweak neg-macro test

Author: som-snytt

tests/neg-macros/i19842-a.check

@@ -17,6 +17,6 @@
   |Inline stack trace
   |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
   |This location contains code that was inlined from Test.scala:5
-5 |    implicit inline def implicitMakeSerializer[T]: Serializer[T] = ${ Macros.makeSerializer[T] }
-  |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+5 |  inline given [T] => Serializer[T] = ${ Macros.makeSerializer[T] }
+  |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ---------------------------------------------------------------------------------------------------------------------

tests/neg-macros/i19842-a/Macro.scala

@@ -2,8 +2,8 @@ import scala.annotation.{experimental, targetName}
 import scala.quoted.*
 import scala.util.Try
 
-object Macros {
-  def makeSerializer[T: Type](using Quotes): Expr[Serializer[T]] = {
+object Macros:
+  def makeSerializer[T: Type](using Quotes): Expr[Serializer[T]] =
     import quotes.reflect.*
 
     val tpe: TypeRepr = TypeRepr.of[T]
@@ -12,7 +12,7 @@ object Macros {
     val modSym: Symbol = Symbol.newModule(
       Symbol.spliceOwner,
       name,
-      Flags.Implicit,
+      Flags.Given,
       Flags.EmptyFlags,
       _ => List(TypeRepr.of[Object], TypeRepr.of[Serializer[T]]),
       _ => Nil,
@@ -23,5 +23,3 @@ object Macros {
       ClassDef.module(modSym, List(TypeTree.of[Serializer[T]]), Nil)
 
     Block(List(modValDef, modClassDef), Ref(modSym)).asExprOf[Serializer[T]]
-  }
-}

tests/neg-macros/i19842-a/Test.scala

@@ -2,8 +2,8 @@
 trait Serializer[@specialized T]
 
 object Serializer:
-    implicit inline def implicitMakeSerializer[T]: Serializer[T] = ${ Macros.makeSerializer[T] }
+  inline given [T] => Serializer[T] = ${ Macros.makeSerializer[T] }
 
 case class ValidationCls(string: String)
 
-@main def Test = summon[Serializer[ValidationCls]] // error
+@main def Test = summon[Serializer[ValidationCls]] // error