This happens only when we try to open a mismatched plugin version with the Editor version. But still Unity shouldnt crash, so filing a bug for it.

Steps to repro:
- Launch the attached project in Unity 5.3.3p3

Unity crashes with following stacktrace:

#0 0x007fff8ef6db17 in _platform_strcmp
#1 0x00000101f615a7 in GetAudioEffectDefinitions(int*)
#2 0x000001023ceae1 in MixerEffectDefinitions_CUSTOM_GetAudioEffectNames()
#3 0x00000130fc03ba in (wrapper managed-to-native) UnityEditor.Audio.MixerEffectDefinitions:GetAudioEffectNames () + 0x8a (0x130fc0330 0x130fc03e9) [0x11627f660 - Unity Child Domain]
#4 0x00000130fbdf66 in UnityEditor.Audio.MixerEffectDefinitions:Refresh () + 0xf66 (0x130fbd000 0x130fbe314) [0x11627f660 - Unity Child Domain]
#5 0x00000130f70d05 in UnityEditor.Audio.MixerEffectDefinitionReloader:.cctor () + 0x45 (0x130f70cc0 0x130f70dfc) [0x11627f660 - Unity Child Domain]
#6 0x0000012c7db906 in (wrapper runtime-invoke) object:runtime_invoke_void (object,intptr,intptr,intptr) + 0xf6 (0x12c7db810 0x12c7dba39) [0x11627f660 - Unity Child Domain]