Jack Karamanian 7533fd8b02 LibJS: Initial class implementation; allow super expressions in object ...

literal methods; add EnvrionmentRecord fields and methods to
LexicalEnvironment

Adding EnvrionmentRecord's fields and methods lets us throw an exception
when |this| is not initialized, which occurs when the super constructor
in a derived class has not yet been called, or when |this| has already
been initialized (the super constructor was already called).

2020-06-29 17:54:54 +02:00

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