Add ServiceHub core host integration test CI

[genlu]

This depends on the change in #57223

[JoeRobich]

Consider adding a matrix so we test both Release and Debug configurations. See example

roslyn/azure-pipelines-integration.yml

Lines 18 to 44 in e1b5726

	- job: VS_Integration
	pool:
	name: $(poolName)
	queue: $(queueName)
	strategy:
	maxParallel: 4
	matrix:
	debug_32:
	_configuration: Debug
	_oop64bit: false
	debug_64:
	_configuration: Debug
	_oop64bit: true
	release_32:
	_configuration: Release
	_oop64bit: false
	release_64:
	_configuration: Release
	_oop64bit: true
	timeoutInMinutes: 135
	steps:
	- template: eng/pipelines/test-integration-job.yml
	parameters:
	configuration: $(_configuration)
	oop64bit: $(_oop64bit)
	lspEditor: false

[genlu]

Do we need to use $(poolName) in this new leg as well?

[JoeRobich]

That isn't necessary. We use that for our scouting queue.

[genlu]

@JoeRobich The new CI pipeline seems to be working as expected.
https://dev.azure.com/dnceng/public/_build/results?buildId=1436555&view=ms.vss-test-web.build-test-results-tab&runId=41474486&resultId=100409&paneView=debug

Should I go ahead and merge this? How can I make sure the new core host legs are not blocking PRs?

[genlu]

@JoeRobich Merge is blocked by flaky integration tests. Could you force merge this please? I believe the change in shared files is validated by (failed) integration test runs. Thanks!

[genlu]

Thanks! @JoeRobich