Get request name from an error

[psychon]

From the output of examples/simple_window_manager.rs on Travis:

Got event Error(XprotoNameError(NameError { response_type: 0, error_code: 15, sequence: 3, bad_value: 2097153, minor_opcode: 0, major_opcode: 45 }))
Got event Error(XprotoFontError(FontError { response_type: 0, error_code: 7, sequence: 4, bad_value: 0, minor_opcode: 0, major_opcode: 55 }))
Got event Error(XprotoFontError(FontError { response_type: 0, error_code: 7, sequence: 5, bad_value: 2097153, minor_opcode: 0, major_opcode: 46 }))

It would be nice if the minor_opcode and major_opcode could somehow be turned into the name of the request that error'd.

However, no idea yet on how to do that, API-wise. Perhaps: Have an request_name: Option<&'static str> in errors. (Or, instead of Option: Let it default to "unknown")

[psychon]

Uhm. The core protocol has the necessary information in errors. Extensions do not necessarily do this, e.g. render.