Update Status to meet with the latest specification

[reyang]

The OpenTelemetry specification has been changed to reduce the complexity of Span Status https://github.com/open-telemetry/opentelemetry-specification/blob/master/specification/trace/api.md#status.

Need to take this breaking change and update the

opentelemetry-dotnet/src/OpenTelemetry.Api/Trace/Status.cs

Line 22 in 6633dc8

public readonly struct Status : System.IEquatable<Status>

file.

[eddynaka]

I'll take a look today/tomorrow

[eddynaka]

Should we change the StatusCanonicalCode as well?

opentelemetry-dotnet/src/OpenTelemetry.Api/Trace/StatusCanonicalCode.cs

Line 26 in 6633dc8

public enum StatusCanonicalCode

It contains the same list from the Status.

[reyang]

Should we change the StatusCanonicalCode as well?

opentelemetry-dotnet/src/OpenTelemetry.Api/Trace/StatusCanonicalCode.cs

Line 26 in 6633dc8

public enum StatusCanonicalCode

It contains the same list from the Status.

Yes, and we probably can have 1 class instead of two.

[eddynaka]

Should we change the StatusCanonicalCode as well?

opentelemetry-dotnet/src/OpenTelemetry.Api/Trace/StatusCanonicalCode.cs

Line 26 in 6633dc8

public enum StatusCanonicalCode

It contains the same list from the Status.

Yes, and we probably can have 1 class instead of two.

I started to look at this and we might have a problem. Grpc uses the StatusCanonicalCode. With that, it's mapped to the Status itself.
I'm opening a draft PR to get other comments.

[eddynaka]

FYI, opened an issue in the spec: open-telemetry/opentelemetry-specification#1044

Problems: we don't have a current map from the rpc status code to otel status code.

The current mapping in the PR is based on assumptions...