Function builtin_gc 

fn builtin_gc(
    _args: &[RValue],
    _: &[(String, RValue)],
) -> Result<RValue, RError>

Trigger garbage collection (stub).

miniR uses Rust’s ownership model for memory management, so there is no garbage collector to invoke. Returns invisible NULL.

@param verbose logical; if TRUE, print GC info (ignored) @param reset logical; if TRUE, reset max memory stats (ignored) @param full logical; if TRUE, do a full collection (ignored) @return invisible NULL