fix(es/minifier): Don't inline functions if keep_fnames is enabled

[kdy1]

Description:

Related issue:

• Build breaking when importing JSBI in 13.5.4 vercel/next.js#56550

[kdy1]

this and U is undefined

[kdy1]

It seems like it's constructed twice, and those values are undefined only on the second construction.
Second call looks like a reflection

[kdy1]

u(u) in the output (broken) vs u(t) in the input (below)

[kdy1]

I think the mangling variable renamer is skipping renaming u1.

[kdy1]

Ah, vercel/next.js#56281 was the cause. I'll update mangle.json

[kdy1]

The name mangler was correct; The problem was that inliner happily inlined t as u in a(u)

                }(u#31, t#31);
                var e#42, n#31, s#31 = e#42 = function() {
                    if ("undefined" == typeof Reflect#1 || !Reflect#1.construct || Reflect#1.construct.sham) return !1;
                    if ("function" == typeof Proxy#1) return !0;
                    try {
                        return Date#1.prototype.toString.call(Reflect#1.construct(Date#1, [], function() {})), !0;
                    } catch (t#24) {
                        return !1;
                    }
                }(), function() {
                    var r#25, n#25 = u#12(u#31);
                    if (e#42) {
                        var i#25 = u#12(this).constructor;
                        r#25 = Reflect#1.construct(n#25, arguments#1, i#25);
                    } else r#25 = n#25.apply(this, arguments#1);
                    var t#46, e#46;
                    return t#46 = this, e#46 = r#25 && "object" === n#12(e#46) || "function" == typeof e#46 ? e#46 : function(t#28) {
                        if (void 0 === t#28) throw ReferenceError#1("this hasn't been initialised - super() hasn't been called");
                        return t#28;
                    }(t#46);
                };
                function u#31(t#33) {
                    var e#33;
                    return function(t#34, e#34) {

[kdy1]

swc-bump:

• swc_ecma_minifier