Code style does not allow currently used member function explanation comments for vfuncs, ipc messages

Current style defines that comments must be English sentences.

Currently code uses:
  class GPUProcessConnection : public RefCounted<GPUProcessConnection>, public IPC::Connection::Client {
  public:
      /// ...
  
      // IPC::Connection::Client
      void didClose(IPC::Connection&) override;
     // ...
  };

When trying to solve this by using:
 // IPC::Connection::Client overrides.
.. then some reviewer complains.

When trying to solve this by using:
 // IPC::Connection::Client
.. then another reviewer complains.

It is not good that review results of seemingly deterministic rule-based system depends on personal preferences of who happens to review the patch.

This causes non-deterministic churn during reviews.

The code style could define this case so that there would be no need for personal preferences.