Missing `!` in __safe_axpy, causing potential exceptions

[Azercoco]

Describe the bug 🐞

In the code:

@inline @generated function __safe_axpy!(α, x, y)
    hasmethod(axpy!, Tuple{typeof(α), typeof(x), typeof(y)}) || return :(axpy!(α, x, y))
    return :(@. y += α * x)
end

, a not ! is missing before hasmethod. This causes the code to never actually go to :(axpy!(α, x, y)) (or only when hasmethod is false, potentially causing an exception) .

Expected behavior

Either change hasmethod to !hasmethodor || to && to get the desired behaviour.