Deal with StaticArrays chain rules #65
Description
Presumably since StaticArrays 1.8.1, my extension for combining static arrays and chain rules has been producing warnings like those below. Evidently my method for detecting that this has already been done is not working.
WARNING: Method definition (::Type{ChainRulesCore.ProjectTo{P, D} where D<:(NamedTuple{names, T} where T<:Tuple where names) where P})(StaticArraysCore.SArray{S, T, N, L} where L where N) where {S, T} in module StaticArraysChainRulesCoreExt at /home/runner/.julia/packages/StaticArrays/MSJcA/ext/StaticArraysChainRulesCoreExt.jl:17 overwritten in module QuaternionicChainRulesCoreExt at /home/runner/.julia/packages/Quaternionic/vdgFb/ext/QuaternionicChainRulesCoreExt.jl:22.
WARNING: Method definition (::ChainRulesCore.ProjectTo{var"#s1"<:(ChainRulesCore.Tangent{var"#s2", T} where T where var"#s2"<:Tuple), D<:(NamedTuple{names, T} where T<:Tuple where names)})(StaticArraysCore.SArray{S, T, N, L} where L where N where T where S<:Tuple) in module StaticArraysChainRulesCoreExt at /home/runner/.julia/packages/StaticArrays/MSJcA/ext/StaticArraysChainRulesCoreExt.jl:10 overwritten in module QuaternionicChainRulesCoreExt at /home/runner/.julia/packages/Quaternionic/vdgFb/ext/QuaternionicChainRulesCoreExt.jl:17.
WARNING: Method definition (::ChainRulesCore.ProjectTo{StaticArraysCore.SArray{S, T, N, L} where L where N where T where S<:Tuple, D<:(NamedTuple{names, T} where T<:Tuple where names)})(AbstractArray{S, M}) where {S, M} in module StaticArraysChainRulesCoreExt at /home/runner/.julia/packages/StaticArrays/MSJcA/ext/StaticArraysChainRulesCoreExt.jl:25 overwritten in module QuaternionicChainRulesCoreExt at /home/runner/.julia/packages/Quaternionic/vdgFb/ext/QuaternionicChainRulesCoreExt.jl:25.
WARNING: Method definition rrule(Type{T}, Tuple) where {T<:(StaticArraysCore.SArray{S, T, N, L} where L where N where T where S<:Tuple)} in module StaticArraysChainRulesCoreExt at /home/runner/.julia/packages/StaticArrays/MSJcA/ext/StaticArraysChainRulesCoreExt.jl:28 overwritten in module QuaternionicChainRulesCoreExt at /home/runner/.julia/packages/Quaternionic/vdgFb/ext/QuaternionicChainRulesCoreExt.jl:28.