How to reproduce:
1. Create a new project
2. Change the Packages/manifest.json with the one attached to this case
3. Open the project

Actual result: Unity crashes. (gif attached)

Reproducible with: 2018.2.0b1, 2018.2.0a3.
Regression introduced in: 2018.2.0a3.
Not reproducible with: 2018.2.0a2, 2018.1.0f1, 2017.4.1f1, 2017.2.2p3.

Notes:
The crash will happen if manifest.json contains "com.unity.analytics": "exclude", "com.unity.standardevents": "exclude" or "com.unity.ads": "exclude", but it won't crash if it contains only: "com.unity.purchasing": "exclude".
The crash doesn't happen if the project was opened in an older version and Unity window says "[PREVIEW PACKAGES IN USE]".

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fixed in 2018.2.0b5, 2018.3.0a1.