
This uses @kevmoo's completion package to do command line completion for flutter, and a new command "bash-completion" (with alias "zsh-completion") that will output the necessary shell script setup code, and adds the hidden command "completion" that does the actual completion. Because it adds a dependency, I also had to do flutter update-packages --force-upgrade. Fixes #18988.
This is a fake package for use by automated testing.
For example, the flutter_tools
package uses this to test flutter test
.