Linus Groh 339ccba354 LibJS: Make Object.prototype.toString() fully spec compliant ...

- Fix evaluation order: IsArray(O) should always be called and before
  Get(O, @@toStringTag), previously it was the other way around and
  IsArray would only be called if @@toStringTag is not a string
- Add missing exception checks to both function calls
- Add missing builtin tag for arguments object

Also, while we're here:
- Update variable names to match spec
- Add spec step comments

2021-07-05 20:21:26 +01:00

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