Alex Lam S.L 0d7d4918eb augment evaluate to extract within objects (#1425) ...

- gated by `unsafe`
- replaces previous optimisation specific to String.length
- "123"[0] => 1
- [1, 2, 3][0] => 1
- [1, 2, 3].length => 3
- does not apply to objects with overridden prototype functions

2017-01-26 12:14:18 +01:00

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