address review: style issues

Author: Jasper-M

compiler/src/dotty/tools/dotc/typer/Implicits.scala

@@ -698,7 +698,7 @@ trait Implicits { self: Typer =>
     }
     def location(preposition: String) = if (where.isEmpty) "" else s" $preposition $where"
     def userDefinedMessage(annot: Annotation, params: List[String], args: List[Type]): Option[String] =
-      for(Trees.Literal(Constant(raw: String)) <- annot.argument(0)) yield {
+      for (Trees.Literal(Constant(raw: String)) <- annot.argument(0)) yield {
         err.userDefinedErrorString(
           raw,
           params,
@@ -720,9 +720,8 @@ trait Implicits { self: Typer =>
           }
           val args = alt.tree match {
             case TypeApply(_, targs) if params.nonEmpty =>
-              def resolveTypes(targs: List[tpd.Tree])(implicit ctx: Context) = {
+              def resolveTypes(targs: List[tpd.Tree])(implicit ctx: Context) =
                 targs.map(a => fullyDefinedType(a.tpe, "type parameter", a.pos))
-              }
               resolveTypes(targs)(ctx.fresh.setTyperState(alt.tstate))
             case _ =>
               Nil