[feature request] Support populating new LogRecord.EventName from log record EventId

[lmolkova]

Package

OpenTelemetry

Is your feature request related to a problem?

Since LogRecord now has top-level EventName proto field, OTel should support mapping EventId.EventName provided to ILogger.Log.

What is the expected behavior?

This example

opentelemetry-dotnet/docs/logs/complex-objects/Program.cs

Lines 17 to 38 in b508b84

	var foodRecallNotice = new FoodRecallNotice
	{
	BrandName = "Contoso",
	ProductDescription = "Salads",
	ProductType = "Food & Beverages",
	RecallReasonDescription = "due to a possible health risk from Listeria monocytogenes",
	CompanyName = "Contoso Fresh Vegetables, Inc.",
	};
	logger.FoodRecallNotice(foodRecallNotice);
	// Dispose logger factory before the application ends.
	// This will flush the remaining logs and shutdown the logging pipeline.
	loggerFactory.Dispose();
	internal static partial class LoggerExtensions
	{
	[LoggerMessage(LogLevel.Critical)]
	public static partial void FoodRecallNotice(
	this ILogger logger,
	[LogProperties(OmitReferenceName = true)] in FoodRecallNotice foodRecallNotice);
	}

should produce a LogRecord (over OTLP) with EventName property set instead of event.name.

Which alternative solutions or features have you considered?

n/a

Additional context

No response

[cijothomas]

#5462 (comment)