Inspect commands can't handle Symbol attributes (e.g. @@toStringTag and @@unscopable), resulting in <non-string> properties.

For example, the following code uses the @@toStringTag symbol:

class Bar { constructor() { this[Symbol.toStringTag] = "Bar"; } } let bar = new Bar();

If we use llnode to find out the properties for bar, it will give the following output:

(lldb) v8 findjsinstances -v Bar 0x0000015078184729:<Object: Bar properties { .constructor=0x00000150781846e1:<function: Bar at index.js:17:14>}> 0x0000015078184949:<Object: Bar properties { .<non-string>=0x00002d2064acb1e1:<String: "Bar">}> 

As you can see, there's a <non-string> property instead of our symbol.

I was looking at llnode and V8 code to try to find a solution, but I'm not sure how to implement it. Did anyone try this before?