Symfony version(s) affected: 4.1.0

Description
When two services with different names are implemented by the same class the compiled container become broken with PHP fatal error.

How to reproduce

1. Create the following services declaration:

        <service id="bar" class="foo" lazy="true"/>
        <service id="baz" class="foo" lazy="true"/>

2. Create empty class definition class foo {}.
3. Compile the container and run compiled version.

Expected: Normal lazy-loaded operation.

Actual:

Fatal error: Cannot declare class foo_40d7466, because the name is already in use in path-to-container\container-name.php on line 13706

Possible Solution
Pass service id to the hash suffinx generator function or don't duplicate definition of the same proxied class.