Add isolated views to EventLoop, Promise, and Future #1102

Job	Run time
Construct integration test matrix	5s
Vsock tests	3m 10s
Benchmarks / Construct Benchmarks matrix	5s
Cxx interop / Construct Cxx interop matrix	3s
Unit tests / Construct unit test matrix	4s
Soundness / API breakage check	2m 2s
Soundness / Documentation check	2m 6s
Soundness / Format check	45s
Soundness / License headers check	10s
Soundness / Broken symlinks check	5s
Soundness / Python lint check	5s
Soundness / Shell check	41s
Soundness / Unacceptable language check	5s
Soundness / YAML lint check	7s
Cxx interop / Cxx interop / Linux (5.9)	1m 16s
Cxx interop / Cxx interop / Linux (5.10)	1m 12s
Cxx interop / Cxx interop / Linux (6.0)	1m 19s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 45s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 17s
Unit tests / Unit tests / Linux (5.9)	3m 54s
Unit tests / Unit tests / Linux (5.10)	3m 53s
Unit tests / Unit tests / Linux (6.0)	4m 4s
Unit tests / Unit tests / Linux (nightly-6.0)	4m 34s
Unit tests / Unit tests / Linux (nightly-main)	1m 14s
Benchmarks / Benchmarks / Linux (5.9)	5m 24s
Benchmarks / Benchmarks / Linux (5.10)	5m 9s
Benchmarks / Benchmarks / Linux (6.0)	5m 30s
Benchmarks / Benchmarks / Linux (nightly-6.0)	6m 23s
Benchmarks / Benchmarks / Linux (nightly-main)	3m 0s
Integration tests / Linux (5.9)	9m 9s
Integration tests / Linux (5.10)	9m 9s
Integration tests / Linux (6.0)	9m 10s
Integration tests / Linux (nightly-6.0)	9m 10s
Integration tests / Linux (nightly-main)	4m 7s
	1h 40m 12s

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