Function swc_core::transforms::compat::es2015::block_scoping

pub fn block_scoping(unresolved_mark: Mark) -> impl VisitMut + Fold

Available on crate feature __transforms only.

TODO(kdy1): Optimization

let functions = [];
for (let i = 0; i < 10; i++) {
   functions.push(function() {
       let i = 1;
       console.log(i);
   });
}