Caleb Eggensperger 1326b348ff Update webmidi typings (#41300) ...

* Update webmidi typings

* Add eventlistener overloads
* Update 'type' field to string literal to allow for use as a
discriminated union

* Fix lint

* Update comment

* Fix lint & tests

2020-01-22 08:23:07 -08:00

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index.d.ts

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tsconfig.json

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tslint.json

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webmidi-tests.ts

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