Display logs when run cargo test

[JiangWeixian]

RUST_LOG=trace cargo test -- --nocapture

use swc_core::ecma::{ast::Ident, visit::VisitMut};
use tracing::debug;

pub struct Whatplatform;

impl VisitMut for Whatplatform {
    // Implement necessary visit_mut_* methods for actual custom transform.
    // A comprehensive list of possible visitor methods can be found here:
    // https://rustdoc.swc.rs/swc_ecma_visit/trait.VisitMut.html
    fn visit_mut_ident(&mut self, n: &mut Ident) {
        debug!("Values: {:#?}", n);
    }
}