Linter reports missing reference for assignments within while block condition

[Holbormon]

julia-vscode/julia-vscode#3550 was closed as outdated starting with release 1.220.0, but I can still reproduce the bug on pre-release 1.230.0, with the same MRE:

function rand_or_nothing()

    if (foo = rand()) < .5
        return foo
    end

    return foo + 1

end

while (bar = rand_or_nothing()) < .7
    display(bar)
end

display(bar) # -> Yields Missing reference: bar StaticLint.jl(missing_reference)