Array.prototype breaks Layer Control

[v1r0x]

Hi,

I have extended Arrays using Array.prototype. The added function swap completely breaks Layer Control (leaflet-1.X branch) and adds an overlay with the title "swap" on master branch. On leaflet-1.X branch I get t.on is not a function.
After some searching for a solution I found an open issue in tombatossals/angular-leaflet-directive#1024. Switching from [] to {} in master and leaflet-1.X fixed the error for me.
Should I open a pull request for this?