Unneeded mangle on destructed function parameters used as shorthands in the function body

[tinovyatkin]

Manglifier adds shorter names from destructing parameters (and it's good in most cases), however, it produces bigger code if these destruction parameters are used for shorthand object creation inside function body.
It's easier to show on example

Original source:

link.onload = ({ target: { dataset: { style = 'normal', weight = 400, name = 'Roboto' }, href } }) => {
            const font = new FontFace(name, `url(${href}) format("woff2")`, { style, weight });
            doc.fonts.add(font);
            font.load();
            font.loaded.then(() =>
              doc.documentElement.classList.add(['wf', ...name.toLowerCase().split(' '), 'active'].join('-'))
            );
          };

minifies into:

b.onload=({target:{dataset:{style:d='normal',weight:g=400,name:h='Roboto'},href:c}})=>{const i=new FontFace(h,`url(${c}) format("woff2")`,{style:d,weight:g});a.fonts.add(i),i.load(),i.loaded.then(()=>a.documentElement.classList.add(['wf',...h.toLowerCase().split(' '),'active'].join('-')))}

As you may see style and width from parameters destructions are used only as shorthand properties inside function, so, adding renaming parameters d and g only added 6 bytes to resulted code without any benefits.