* Update test reference to latest istio commit
* make clean g&& go mod tidy
* Use tests/utils to delete sample
* Move some test script to use snippets
* Add _wait
* Remove extraneous source
* Update istio/istio ref to latest master
* Move to latest before testing.
* Update release in Makefile
* Fix some tests
* Update to latest isti.io/istio again
* Update to latest istio.io/istio
* Update to latest istio.io/istio
* Update ref to latest master
* Fix instioctl-analyze
* Add back @howardjohn commit I inadvertantly deleted
* Fix lint
* Pick up new stio: fix empty iop read from stdin for operator
* go mod tidy without itermediate go gets
* Update to current stats-filter's
* Needed another 'make gen'
* More go.* changes for changes in ref'd istio/istio
* Update istio to 1.9.0-beta.0
Overview of the changes:
- Adding ability to verify that expected output occurs a number of times consecutively. This is needed for https://github.com/istio/istio.io/pull/8402.
- Moving snapshot checking logic to Go code so that it can be separated out into separate test steps, which are timed and contain their own output directories/files. This makes the code cleaner and also makes the snapshot logic more transparent.
- Updating debug.sh to use newer bash syntax that allows it to dynamically select a free file descriptor. Without this, I was seeing all commands echoed to my console in goland.