ReinterpretedArray Performance (even worse on 1.8)

General Usage Performance
27

Note that this will improve considerably with https://github.com/JuliaLang/julia/pull/44186

nightly:

julia> print("           Array: "); @btime cheb!($A, $x)
           Array:   225.605 ns (0 allocations: 0 bytes)

julia> print("ReinterpretArray: "); @btime cheb!($B, $x)
ReinterpretArray:   2.839 μs (0 allocations: 0 bytes)

julia> VERSION
v"1.9.0-DEV.411"

This PR:

julia> print("           Array: "); @btime cheb!($A, $x)
           Array:   226.522 ns (0 allocations: 0 bytes)

julia> print("ReinterpretArray: "); @btime cheb!($B, $x)
ReinterpretArray:   458.822 ns (0 allocations: 0 bytes)

julia> VERSION
v"1.8.0-DEV.1561"

Wish this PR would get reviewed

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