test: add a non-structural file change to rebuild E2E
test: add a non-structural file change to rebuild E2E

This helps validate and profile rebuilds when TypeScript can fully reuse a previous Program.

catull/angular-cli,clydin/angular-cli,angular/angular-cli,Brocco/angular-cli,catull/angular-cli,angular/angular-cli,ocombe/angular-cli,ocombe/angular-cli,angular/angular-cli,clydin/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,clydin/angular-cli,geofffilippi/angular-cli,angular/angular-cli,Brocco/angular-cli,Brocco/angular-cli,catull/angular-cli,geofffilippi/angular-cli,geofffilippi/angular-cli,catull/angular-cli,clydin/angular-cli,ocombe/angular-cli,ocombe/angular-cli,ocombe/angular-cli,Brocco/angular-cli