MetalPerformanceShaders iOS 12.0 Beta 3 to Beta 4 API Differences

../Frameworks/MPSCore.framework/Headers/MPSImage.h
Added -[MPSImageDescriptor copyWithZone:]
Added -[MPSImageAllocator imageBatchForCommandBuffer:imageDescriptor:kernel:count:]
Modified MPSImageDescriptor
Protocols
Fromnone
ToNSCopying

../Frameworks/MPSNeuralNetwork.framework/Headers/MPSCNNConvolution.h
Removed -[MPSCNNConvolutionDataSource copyWithZone:]
Modified MPSCNNConvolutionDataSource
Protocols
FromNSObject
ToNSCopying, NSObject

../Frameworks/MPSNeuralNetwork.framework/Headers/MPSCNNLoss.h
Modified +[MPSCNNLossDescriptor cnnLossDescriptorWithType:reductionType:]
Declaration
From+ (nullable MPSCNNLossDescriptor *)cnnLossDescriptorWithType:(MPSCNNLossType)lossType reductionType:(MPSCNNReductionType)reductionType
To+ (nonnull MPSCNNLossDescriptor *)cnnLossDescriptorWithType:(MPSCNNLossType)lossType reductionType:(MPSCNNReductionType)reductionType

../Frameworks/MPSNeuralNetwork.framework/Headers/MPSNeuralNetworkTypes.h
Added MPSNNPaddingMethodCustomWhitelistForNodeFusion
../Frameworks/MPSNeuralNetwork.framework/Headers/MPSNNGraphNodes.h
Added MPSNNImageNode.stopGradient
Added MPSGradientNodeBlock
Added -[MPSNNFilterNode trainingGraphWithSourceGradient:nodeHandler:]
../Frameworks/MPSRayIntersector.framework/Headers/MPSRayIntersectorTypes.h
Added #def MPS_ALWAYS_INLINE