Optional chaining - #1041
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tomblind
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tomblind
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* Optional chaining * Added some more possibly undefined test cases * Added extra test and fixed bug * Removed double work from transformNullishCoalescingExpression * fix prettier
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Added support for optional chaining.
I tried to come up with a good test suite but I feel like I might still be missing some stuff, feel free to suggest extra tests.
Also removed a stray .debug() I left in the module-resolution tests, as well as fixing an undiscovered quadratic (actually worse) complexity bug with
??.