Revisiting a Maybe-Not-So-Weird Old Idea: <- as IDENTITY

[hostilefork]

@bradrn

re-indented to make the structure clearer:

tests:
    if try first system.options.args [
        local-to-file first system.options.args
    ] else [
        %core-tests.r
    ]

Using indentation is interesting, but I do prefer:

tests: if try first system.options.args [
    <- local-to-file first system.options.args
] else [
    %core-tests.r
]

The nice thing is, you choose. Maybe from things you have gathered you might have your own insights to add to Fundamental Distinguishing Features of Rebol, if any have stood out.

But crucially, little is fixed. <- isn't...IF isn't. You can define IF as something totally different in the scope of a function, and that's fine if you have a good reason to do it...!