Alex Eagle d1e33d2df7 build: disambiguate rollup progress message (#23318)
All our package labels are `npm_package` so the bazel build reports a bunch of identical actions running, like

```
    Angular Packaging: rolling up npm_package; 31s darwin-sandbox
    Angular Packaging: rolling up npm_package; 30s darwin-sandbox
    Angular Packaging: rolling up npm_package; 29s darwin-sandbox
    Angular Packaging: rolling up npm_package; 27s darwin-sandbox
    Angular Packaging: rolling up npm_package; 26s darwin-sandbox
    Angular Packaging: rolling up npm_package; 23s darwin-sandbox
    Angular Packaging: rolling up npm_package; 19s darwin-sandbox
    Angular Packaging: rolling up npm_package; 11s darwin-sandbox
```
PR Close #23318
2018-04-11 15:31:02 -07:00
..