Fix strides for all codeunits

Author: jakobnissen

base/strings/basic.jl

@@ -802,7 +802,7 @@ elsize(s::Type{<:CodeUnits{T}}) where {T} = sizeof(T)
 @propagate_inbounds getindex(s::CodeUnits, i::Int) = codeunit(s.s, i)
 IndexStyle(::Type{<:CodeUnits}) = IndexLinear()
 @inline iterate(s::CodeUnits, i=1) = (i % UInt) - 1 < length(s) ? (@inbounds s[i], i + 1) : nothing
-
+strides(::CodeUnits) = (1,)
 
 write(io::IO, s::CodeUnits) = write(io, s.s)
 

base/strings/substring.jl

@@ -77,7 +77,6 @@ convert(::Type{Union{String, SubString{String}}}, s::AbstractString) = convert(S
 function _memory_offset(x::CodeUnits{<:Any, <:Union{String, SubString{String}}}, I::Vararg{Any,N}) where {N}
     (_to_linear_index(x, I...) - first(LinearIndices(x)))*elsize(x)
 end
-strides(x::CodeUnits{<:Any, <:Union{String, SubString{String}}}) = (1,)
 
 function String(s::SubString{String})
     parent = s.string