When fetch is run in normal mode, the `git-fetch-pack` plumbing command
outputs progress to stderr. Since this is unnecessary progress
information for ng-dev usages, it should be suppressed instead.
PR Close#39503
Some usages of the `GitClient` are better served by suppressing the
logging of lines that express what commands are being run. Many usages
of `GitClient` are contained within tools which are best served by
keeping the output clean as mostly read actions are occurring.
PR Close#39474
The node hash bang was incidentally removed in the published ng-dev, it should
be included to allow for the command to be run without having to specify node.
PR Close#39443
Rather than running ng-dev via ts-node, going forward ng-dev is generated and run
locally via node. Additionally, the generated file is tested on each commit to
ensure that the local generated version stays up to date.
PR Close#39089
Joey Perrott