InnerClassCompletionVisitor does not overwrite existing propertyMissing/methodMissing impls completely

    public java.lang.Object methodMissing(java.lang.String name, java.lang.Object args) {
        return Container."$name"(* args )
    }

    public void propertyMissing(java.lang.String name, java.lang.Object val) {
        Container."$name" = val 
    }

    public java.lang.Object propertyMissing(java.lang.String name) {
        return Container."$name"
    }

class A {

  static class B {
  
      def propertyMissing(String name, Object myValue) {
          return value
      }
  }
}

def b = new A.B()
b.a = 'test' // groovy.lang.MissingFieldException: No such field: val for class: A