Add a test of try-catch statements.
Add a test of try-catch statements.

sebmck/regenerator,rwaldron/regenerator,RReverser/js-goto-transpiler,facebook/regenerator,Jericho25/regenerator,RReverser/js-goto-transpiler,facebook/regenerator,liviuignat/regenerator,rafaelstz/regenerator,sebmck/regenerator,rafaelstz/regenerator,liviuignat/regenerator,jlongster/transmogrifier,facebook/regenerator,kittens/regenerator,juliocanares/regenerator,jlongster/unwinder,kittens/regenerator,jlongster/unwinder,juliocanares/regenerator,Jericho25/regenerator,jlongster/transmogrifier,jlongster/unwinder