Deno: implement `console` follow the whatwg spec

[justjavac]

Make the console implementation follow the whatwg specification. I am working on it.

TODO:

• Logging methods
  
  
  
  • [x] debug/error/info/log/warn
  
  
  • [x] clear #1360
  
  
  • [x] assert #1335
  
  
  • [x] table #1608
  
  
  • [x] trace
  
  
  • [x] dir/dirxml
  
  
  • Counting methods
  
  
  • [x] count #1358
  
  
  • [x] countReset #1358
  
  
  • Grouping methods
  
  
  • [x] group #1363
  
  
  • [x] groupCollapsed #1452
  
  
  • [x] groupEnd #1363
  
  
  • Timing methods #1358
  
  
  • [x] time
  
  
  • [x] timeLog
  
  
  • [x] timeEnd
  
  
  • other
  
  
  • [x] format the input if contain formatting specifiers #1565
  
  

[ry]

Please see the discussion in https://github.com/denoland/deno/pull/1355 regarding group/groupEnd

[bartlomieju]

It looks like we're only missing dirXml to have full compatibility. Given that console outputs to terminal I think we might alias dirXml to dir. Opinions?

[hayd]

Displays an interactive tree of the descendant elements of the specified XML/HTML element. If it is not possible to display as an element the JavaScript Object view is shown instead.

So this seems reasonable.