fix ambiguous methods

[dpinol]

using JLD2, Test

julia> a=detect_ambiguities(JLD2; recursive=true)
12-element Vector{Tuple{Method, Method}}:
 (jlconvert(::JLD2.ReadRepresentation{T, JLD2.CustomSerialization{S, ODR}}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T, S, ODR} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/custom_serialization.jl:63, jlconvert(::JLD2.ReadRepresentation{T, T}, ::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where T @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:302)
 (jlconvert(::JLD2.ReadRepresentation{T, JLD2.CustomSerialization{S, JLD2.RelOffset}}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/custom_serialization.jl:55, jlconvert(::JLD2.ReadRepresentation{T, T}, ::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where T @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:302)
 (read(io::JLD2.RWBuffer, T::Union{Type{Float16}, Type{Float32}, Type{Float64}, Type{Int128}, Type{Int16}, Type{Int32}, Type{Int64}, Type{Int8}, Type{UInt128}, Type{UInt16}, Type{UInt32}, Type{UInt64}, Type{UInt8}}) @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/io/io_wrappers.jl:145, read(s::IO, T::Union{Type{Float16}, Type{Float32}, Type{Float64}, Type{Int128}, Type{Int16}, Type{Int32}, Type{Int64}, Type{UInt128}, Type{UInt16}, Type{UInt32}, Type{UInt64}}) @ Base io.jl:903)
 (write_header_message(io, f, msg::Pair{String, JLD2.RelOffset}) @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/explicit_datasets.jl:239, write_header_message(io, vtype::Val{HMT}, hflags; ...) where HMT @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/object_headers.jl:25)
 (jlconvert(::JLD2.ReadRepresentation{T, S}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T<:ReconstructedMutable, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/reconstructing_datatypes.jl:635, jlconvert(::JLD2.ReadRepresentation{T, JLD2.Vlen{S}}, f::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where {T, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:367)
 (write_header_message(io, f, msg::Pair{String, JLD2.RelOffset}, ::Any) @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/explicit_datasets.jl:239, write_header_message(io, vtype::Val{HMT}, hflags, size; kwargs...) where HMT @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/object_headers.jl:25)
 (jlconvert(::JLD2.ReadRepresentation{T, T}, ::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where T @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:302, jlconvert(::JLD2.ReadRepresentation{T, JLD2.Vlen{S}}, f::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where {T, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:367)
 (jlconvert(::JLD2.ReadRepresentation{T, S}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T<:ReconstructedMutable, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/reconstructing_datatypes.jl:635, jlconvert(::JLD2.ReadRepresentation{T, T}, ::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where T @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:302)
 (jlconvert(::JLD2.ReadRepresentation{T, JLD2.CustomSerialization{S, ODR}}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T, S, ODR} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/custom_serialization.jl:63, jlconvert(::JLD2.ReadRepresentation{T, S}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T<:ReconstructedMutable, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/reconstructing_datatypes.jl:635)
 (jlconvert(::JLD2.ReadRepresentation{T, JLD2.CustomSerialization{S, JLD2.RelOffset}}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/custom_serialization.jl:55, jlconvert(::JLD2.ReadRepresentation{T, S}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T<:ReconstructedMutable, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/reconstructing_datatypes.jl:635)
 (jlconvert(::JLD2.ReadRepresentation{T, S}, f::JLD2.JLDFile, ptr::Ptr, header_offset::JLD2.RelOffset) where {T<:ReconstructedMutable, S} @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/reconstructing_datatypes.jl:635, jlconvert(::JLD2.ReadRepresentation{T, JLD2.RelOffset}, f::JLD2.JLDFile, ptr::Ptr, ::JLD2.RelOffset) where T @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/data/writing_datatypes.jl:338)
 (read(io::JLD2.RWBuffer, T::Union{Type{Float16}, Type{Float32}, Type{Float64}, Type{Int128}, Type{Int16}, Type{Int32}, Type{Int64}, Type{Int8}, Type{UInt128}, Type{UInt16}, Type{UInt32}, Type{UInt64}, Type{UInt8}}) @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/io/io_wrappers.jl:145, read(s::IO, ::Type{Int8}) @ Base io.jl:902)

btw, the following 2 only appear after 0.5.5 (and are the only ones reported when I run detect_ambiguities against my package 🤷 )

 (read(io::JLD2.RWBuffer, T::Union{Type{Float16}, Type{Float32}, Type{Float64}, Type{Int128}, Type{Int16}, Type{Int32}, Type{Int64}, Type{Int8}, Type{UInt128}, Type{UInt16}, Type{UInt32}, Type{UInt64}, Type{UInt8}}) @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/io/io_wrappers.jl:145, read(s::IO, T::Union{Type{Float16}, Type{Float32}, Type{Float64}, Type{Int128}, 

 (read(io::JLD2.RWBuffer, T::Union{Type{Float16}, Type{Float32}, Type{Float64}, Type{Int128}, Type{Int16}, Type{Int32}, Type{Int64}, Type{Int8}, Type{UInt128}, Type{UInt16}, Type{UInt32}, Type{UInt64}, Type{UInt8}}) @ JLD2 ~/.julia/packages/JLD2/3zWRM/src/io/io_wrappers.jl:145, read(s::IO, ::Type{Int8}) @ Base io.jl:902)

[JonasIsensee]

Hi @dpinol,
thanks for pointing this out.
I know about all the old ambiguities. They are irrelevant since the ambiguity will never appear at runtime. (requires manually constructed and malformed internal types.

The others should be fixed!