fix(gen): replace named function with anonymous

see
https://github.com/yeoman/generator-angular/commit/c82f336bbbdc9bcf44bed
dbd620b471a60f832eb
chore(deps): update es5-shim

see
https://github.com/yeoman/generator-angular/commit/cf919eaaa0f9ad0a70312
95bb68f5482246d9bcf