Alex Chugaev 2fe87f6f25 [prop-types] Added missing definition of PropTypes.symbol (#19970) ...

* Added definition for PropTypes.symbol

* Tests of support PropTypes.symbol

2017-09-25 17:02:01 -07:00

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index.d.ts

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prop-types-tests.ts

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tsconfig.json

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tslint.json

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