Idan Horowitz b9d9187feb LibJS: Automatically & lazily coerce PropertyNames into numbers ...

This commit expands on 5eef07d232 by
automatically trying to coerce Type::String PropertyNames into numbers
when a caller checks if the PropertyName is_number/is_string.
This has several benefits:
 - We no longer have to duplicate the number coercion code to every
   function that accepts a PropertyNumber. (Or more likely, forget to.)
 - This keeps the lazy nature of only doing the coercion when and if
   there is a semantic difference to the different PropertyName types,
   which means this shouldnt cause any performance drop.
 - Since this coercion changes the state of the PropertyName itself the
   result is essentially cached and can speed up any repeat uses of the
   same PropertyName instance.

2021-06-16 22:54:48 +01:00

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