Ceylon logging should support loggers with class name

[dlkw]

The ceylon.logging::logger function accepts an argument with type

shared alias Category => Module|Package;

I suggest adding ceylon.language.meta.declaration::ClassDeclaration to the accepted argument types, so a logger can have a class-specific name (as is usual in Java) when created as

Logger log = logger(`class`);

inside a class or member class. Not having class-specific names for loggers makes reading the log more difficult: only the module or even package name is rather coarse to get an idea where the log entry was produced.

[gavinking]

You're welcome to propose a patch.