Allow length of zero for ByteMemory (#8273)
Allow length of zero for ByteMemory (#8273)


dsyme/fsharp,dsyme/fsharp,cloudRoutine/FSharp.Compiler.Service,dsyme/fsharp,cloudRoutine/FSharp.Compiler.Service,cloudRoutine/FSharp.Compiler.Service,dsyme/fsharp,dsyme/fsharp,dsyme/fsharp,dsyme/fsharp