address easy cr comments

Author: fmonniot

tests/run-macros/term-show/Macro_1.scala

@@ -4,8 +4,7 @@ object TypeToolbox {
   inline def show(inline className: String): String = ${ showImpl('className) }
   private def showImpl(className: Expr[String])(using Quotes) : Expr[String] =
     import quotes.reflect.*
-    val Expr(name) = className: @unchecked
+    val name = className.valueOrAbort
     val res = Symbol.requiredClass(name).tree.show
-    println(res)
     Expr(res)
 }