Summary

Currently we use ModuleIdentifier to access Module and ModuleGraphModule, but need to convert the dependency_id to the connection_id to access the Connection, which will cause additional performance loss.

impl ModuleGraph {
    fn connection_by_dependency_id(&self, dep_id: &DependencyId) -> Option<Connection> {
        let con_id = self.dependency_id_to_connection_id.get(dep_id)?;
        self.connections.get(con_id)
    }
}

This PR will remove ConnectionId and use DependencyId to access Connection.

impl ModuleGraph {
    fn connection_by_dependency_id(&self, dep_id: &DependencyId) -> Option<Connection> {
        self.connections.get(dep_id)
    }
}

NOTE: There are some inactive connections in the module graph that cannot be found from the dependency ID. This is useful when you need to print debug information, but it makes the module graph more cluttered. We will use some other methods to ensure these features.

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).