Activating the Audio Profiler spawns error messages in Console.

To reproduce:
- Open attached project and launch scene
- Open the "mainMix" Audio Mixer window
- Open the Audio Profiler
- Hit Play and observe the following error messages in Console:

&other != this
UnityEditorInternal.ProfilerProperty:SetRoot(Int32, ProfilerColumn, ProfilerViewType)
UnityEditor.ProfilerWindow:CreateProperty(Boolean) (at C:/audio_5.0/unity/Editor/Mono/Profiler/ProfilerWindow.cs:186)
UnityEditor.ProfilerWindow:DrawAudioPane() (at C:/audio_5.0/unity/Editor/Mono/Profiler/ProfilerWindow.cs:557)
UnityEditor.ProfilerWindow:OnGUI() (at C:/audio_5.0/unity/Editor/Mono/Profiler/ProfilerWindow.cs:1003)
System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception&)
System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) (at /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
System.Reflection.MethodBase:Invoke(Object, Object[]) (at /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView:Invoke(String, Object) (at C:/audio_5.0/unity/Editor/Mono/GUI/DockArea.cs:241)
UnityEditor.HostView:Invoke(String) (at C:/audio_5.0/unity/Editor/Mono/GUI/DockArea.cs:234)
UnityEditor.DockArea:OnGUI() (at C:/audio_5.0/unity/Editor/Mono/GUI/DockArea.cs:671)
[C:/audio_5.0/unity/Runtime/Utilities/dynamic_array.h line 91]