Andrew Scott ba0faa2f77 refactor(core): remove looseIdentical in favor of built-in Object.is (#37191)
Remove `looseIdentical` implementation and instead use the ES2015 `Object.is` in its place.
They behave exactly the same way except for `+0`/`-0`.
`looseIdentical(+0, -0)` => `true`
`Object.is(+0, -0)` => `false`

Other than the difference noted above, this is not be a breaking change because:
1. `looseIdentical` is a private API
2. ES2015 is listed as a mandatory polyfill in the [browser support
guide](https://angular.io/guide/browser-support#mandatory-polyfills)
3. Also note that `Ivy` already uses `Object.is` in `bindingUpdated`.

PR Close #37191
2020-06-01 17:19:17 -04:00
..
2020-01-13 07:21:43 -08:00

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