fix: fix merge breaks, add function names to scope before renaming bodies

src/main/wacc/Main.scala

@@ -34,7 +34,7 @@ def compile(contents: String): Int = {
   parser.parse(contents) match {
     case Success(ast) =>
       given errors: mutable.Builder[Error, List[Error]] = List.newBuilder
-      val names = renamer.rename(ast)
+      renamer.rename(ast)
       // given ctx: types.TypeCheckerCtx[List[Error]] =
       //   types.TypeCheckerCtx(names, errors)
       // types.check(ast)