bumping to beta.1 since this is a relatively risky change.

modules/angular2/test/core/linker/integration_spec.ts does not run with transformers.

I think a better place to test this behavior is: core/change_detection/change_detector_spec.ts, which runs in both modes.

• Add a test to change_detector_spec.ts
• Undo your change in linker/integration_spec.ts

But the prod change looks good.

Merging PR #5892 on behalf of @alxhub to branch presubmit-alxhub-pr-5892.

Merging PR #5892 on behalf of @rkirov to branch presubmit-rkirov-pr-5892.

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