Symfony version(s) affected: 4.4.0

Description
Named argument binding doesn't support !tagged_locator.

How to reproduce

services:
    _defaults:
        bind:
            Psr\Container\ContainerInterface $foo: !tagged_locator my.locator

Invalid value for binding key "Psr\Container\ContainerInterface $foo" for service "Some\Unrelated\Service\That\Doesn't\Even\Have$foo\Argument": expected null, an instance of Symfony\Component\DependencyInjection\Reference or an instance of Symfony\Component\DependencyInjection\Definition or an instance of Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument, object given.

Possible Solution
Works fine if type is omitted, e.g. $foo: !tagged_locator my.locator. Breaks as soon as Psr\Container\ContainerInterface is specified as a type prefix, by attempting to inject into every service instead of just those with matching parameters.