Turn off "no wildcards in constraint" check

Author: odersky

compiler/src/dotty/tools/dotc/config/Config.scala

@@ -35,7 +35,7 @@ object Config {
   inline val checkConstraintsPropagated = false
 
   /** Check that constraint bounds do not contain wildcard types */
-  inline val checkNoWildcardsInConstraint = true
+  inline val checkNoWildcardsInConstraint = false
 
   /** If a constraint is over a type lambda `tl` and `tvar` is one of
    *  the type variables associated with `tl` in the constraint, check