Steps to reproduce:

1. Create new Unity project on MacBook Pro 13-inch, Early 2015
2. Make sure that:
> Game View is visible
> Default Skybox is enabled
> Editor is opened with OpenGL
3. Create a few (2-5) 3D objects in the scene
4. The Editor will crash

Notes:
Doesn't crash if any of the 3 conditions in step #2 aren't met: Game View not visible, Default Skybox disabled or Metal Editor enabled.
Only crashes on this specific machine:

MacBook Pro 13-inch, Early 2015
GPU: Intel Iris Graphics 6100

Reproduced with: 2017.1.1p4, 2017.2.0f3, 2017.3.0b4