jspm_packages/system-polyfills.src.js
function tryCatchReject3(f, x, y, thisArg, next) {
			try {
				f.call(thisArg, x, y, next);
			} catch(e) {
				next.become(new Rejected(e));
			}
		}
function tryCatchReject3(f, x, y, thisArg, next) {
			try {
				f.call(thisArg, x, y, next);
			} catch(e) {
				next.become(new Rejected(e));
			}
		}
function tryCatchReject3 ( f , x , y , thisArg , next ) { try { f . call ( thisArg , x , y , next ) ; } catch ( e ) { next . become ( new Rejected ( e ) ) ; } }
Same as above, but includes the extra argument parameter.
Same as above but includes the extra argument parameter .