project.repositories.add(new org.apache.ivy.plugins.resolver.FileSystemResolver()) {
  name = "myLocalRepo"
  //in reality, more settings are configured, addIvyPattern, addArtifactPattern, and bunch of others.
}

task listRepos << {
  project.repositories.each { println it.name }
}

Above is a typical way of adding highly customised resolvers (e.g. repositories.ivy {} dsl element does not yet offer all the ivy configuration options). After running listRepos, the repository name is 'repository' instead of 'myLocalRepo'. This is different behavior to 1.2.

I see that we've made the renaming of repository deprecated in 1.3. However, I don't see an alternative way of adding a customised ivy resolver with a custom name.