In Entity Framework Core 1.0 how do you rename indexes?

I've used this tutorial to install EF using VS2015:

EF - Console Application to New Database

Basically:

• Ensure you are targeting .NET Framework 4.5.1 or later.
• Ensure your are using the latest version of the nuget package manager
• Install this two packages:
  • EntityFramework.MicrosoftSqlServer –Pre
  • EntityFramework.Commands –Pre

I've created a simple DbContext with two entities:

using Microsoft.Data.Entity;
using System.Collections.Generic;
public class SampleContext : DbContext
{
    public DbSet<Person> People { get; set; }

    public DbSet<Tenant> Tenants { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        // Visual Studio 2015 | Use the LocalDb 12 instance created by Visual Studio
        optionsBuilder.UseSqlServer(@"Server=(localdb)\mssqllocaldb;Database=EFGetStarted.ConsoleApp.NewDb;Trusted_Connection=True;");

        // Visual Studio 2013 | Use the LocalDb 11 instance created by Visual Studio
        // optionsBuilder.UseSqlServer(@"Server=(localdb)\v11.0;Database=EFGetStarted.ConsoleApp.NewDb;Trusted_Connection=True;");
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        // Configure the name of the foreign key
        modelBuilder.Entity<Person>()
            .HasOne(p => p.Tenant)
            .WithMany(t => t.Persons)
            .HasConstraintName("MyForeignKey");

        // Configure the name of a unique index
        modelBuilder.Entity<Person>().HasAlternateKey(p => p.Email).ForSqlServerHasName("MyUniqueEmail");

    }
}

public class Person
{
    public int PersonId { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public virtual Tenant Tenant { get; set; }
}

public class Tenant
{
    public Tenant()
    {
        Persons = new HashSet<Person>();
    }

    public int TenantId { get; set; }
    public string Name { get; set; }
    public virtual ICollection<Person> Persons { get; set; }
}

So to configure the name of the foreign key:

modelBuilder.Entity<Person>()
            .HasOne(p => p.Tenant)
            .WithMany(t => t.Persons)
            .HasConstraintName("MyForeignKey");

To configure the name of a unique index:

modelBuilder.Entity<Person>().HasAlternateKey(p => p.Email).ForSqlServerHasName("MyUniqueEmail");

Then you need to create a migration for your context using the Package Manager Console:

• Add-Migration MyFirstMigration

And finally update your database using the Package Manager Console:

• Update-Database

Using Sql Server Management Studio, I can check the name of my indexes :