Improve webpack performance (~ 80ms -> 15ms)

src/webpack/webpack.ts

@@ -44,9 +44,15 @@ export function find(filter: FilterFn, getDefault = true) {
 
         if (filter(mod.exports))
             return mod.exports;
+
+        if (typeof mod.exports !== "object") continue;
+
         if (mod.exports.default && filter(mod.exports.default))
             return getDefault ? mod.exports.default : mod.exports;
-        for (const nestedMod in mod.exports) {
+
+        // is 3 is the longest obfuscated export?
+        // the length check makes search about 20% faster
+        for (const nestedMod in mod.exports) if (nestedMod.length < 3) {
             const nested = mod.exports[nestedMod];
             if (nested && filter(nested)) return nested;
         }