`Base.getindex` producing a `view`

[lkdvos]

Currently, the behavior of StridedView is such that getindex is secretely producing a view, which is either a slight abuse of notation or some type of piracy on the Base behavior.

The docs for AbstractArray state:

"""
    getindex(A, inds...)

Return a subset of array A as selected by the indices inds.

Each index may be any supported index type, such as an Integer, CartesianIndex, range, or array of supported indices. A : may be used to select all elements along a specific dimension, and a boolean array (e.g. an `Array{Bool}` or a `BitArray`) may be used to filter for elements where the corresponding index is true.

When inds selects multiple elements, this function returns a newly allocated array. To index multiple elements without making a copy, use `view` instead.

See the manual section on array indexing for details.
"""

While this would be a painful breaking change, it might be worth it to follow this behavior a bit closer, since this leads to unexpected issues in generic AbstractArray implementations that make assumptions about modifying behavior.
See e.g. QuantumKitHub/MatrixAlgebraKit.jl#226