Update compiler/src/dotty/tools/dotc/ast/tpd.scala

Author: OlivierBlanvillain

compiler/src/dotty/tools/dotc/ast/tpd.scala

@@ -285,7 +285,7 @@ object tpd extends Trees.Instance[Type] with TypedTreeInfo {
       if (cls.classInfo.selfInfo ne NoType) ValDef(ctx.newSelfSym(cls))
       else EmptyValDef
     def isOwnTypeParam(stat: Tree) =
-      (stat.symbol.is(TypeParam)) && stat.symbol.owner == cls
+      stat.symbol.is(TypeParam) && stat.symbol.owner == cls
     val bodyTypeParams = body filter isOwnTypeParam map (_.symbol)
     val newTypeParams =
       for (tparam <- cls.typeParams if !(bodyTypeParams contains tparam))