[patch] [cla] Disable Firebug Lite for Opera

[Thomas Bachem]

Currently, there are several checks for native consoles in firebug.js:

if(
	has("ff") ||                                           // Firefox has Firebug
	has("chrome") ||                                       // Chrome 3+ has a console
	has("safari") ||                                       // Safari 4 has a console
	isNewIE ||                                             // Has the new IE console
	window.firebug ||                                      // Testing for mozilla firebug lite
	(typeof console != "undefined" && console.firebug) ||  // The firebug console
	dojo.config.useCustomLogger ||                         // Allow custom loggers
	has("air")                                             // isDebug triggers AIRInsector, not Firebug
){

So we should add

	has("opera") ||                                        // Opera has a console

nowadays.

I got the impression that the whole Firebug Lite thing is deprecated, but when using the isDebug config setting with an unbuilt source (during development), there's no way to prevent Firebug Lite from loading. So we should at least not load it in browsers where it's just annoying.

[bill]

Actually, this is already taken care of by #18727, specifically a299af37620e95cb85c39e248aa001c9e6b9d0eb.