IE8 doesn't like named anonymous expressions. Not naming the function
expression reduces the gzipped size by 5 bytes.
In ECMAScript 2015 the function will get the name inferred from the
variable name (here: swap) anyway.
(cherry-picked from e847574fc7)
Refs 02a9d9f94b
* Remove third argument from "addEventListener"
* Remove third argument from "removeEventListener"
* Remove second argument from "getComputedStyle"
Ref gh-2047
jQuery.swap was an undocumented API used only internally. With the modular
AMD system we currently have it's not necessary to expose this function
publicly under the jQuery object.
Fixes gh-2058
Closes gh-2182
IE9-10 throws on elements created in popups (see #14150), FF meanwhile throws
on frame elements through "defaultView.getComputedStyle" (see #15098)
Use "defaultView" if in the popup which would fix IE issue,
use "window.getComputedStyle" which would fix FF issue.
And everybody wins, except performance, but who cares right?
Fixes#15098
Closes gh-1583
