pass experimental flag in juliac script

[baggepinnen]

the PR

• cli: Add required --experimental flag for experimental features (e.g. --trim) #56045

made this argument required for trimming

[vtjnash]

This would make removing the experimental flag a breaking change. The user needs to pass this flag into the juliac script, not get supplied automatically, to avoid creating a situation where changing the flag is breaking

[fredrikekre]

But all of juliac is already experimental:

julia/contrib/juliac.jl

Line 2 in 458f9e5

# NOTE: The interface and location of this script are considered unstable/experimental

[JeffBezanson]

This change is also needed in test/trimming/Makefile.

@vtjnash 's observation is part of why I am not so excited about this use of --experimental; all it does is change the spelling of --trim to --experimental --trim.

[terasakisatoshi]

If we pass the --experimental option implicitly. Including it in static_call_graph_arg is a good solution to me.

-static_call_graph_arg() = isnothing(trim) ? `` : `--trim=$(trim)``
+static_call_graph_arg() = isnothing(trim) ? `` : `--experimental --trim=$(trim)``

Ref https://github.com/JuliaLang/julia/pull/56654/files

On the other hand, my feelings are the same as @JeffBezanson says.

I am not so excited about this use of --experimental