chore(deps): update dependency @babel/core to v7.4.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
@​babel/core	devDependencies	patch	7.4.3 -> 7.4.4	homepage, source

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Release Notes

babel/babel

### [`v7.4.4`](https://togithub.com/babel/babel/blob/master/CHANGELOG.md#v744-2019-04-26) [Compare Source](https://togithub.com/babel/babel/compare/v7.4.3...v7.4.4) ##### :bug: Bug Fix - `babel-plugin-transform-flow-comments` - [#​9897](https://togithub.com/babel/babel/pull/9897) fix flow-comments - class type paramters and implements ([@​tanhauhau](https://togithub.com/tanhauhau)) - [#​9893](https://togithub.com/babel/babel/pull/9893) fix flow-comment - object destructuring ([@​tanhauhau](https://togithub.com/tanhauhau)) - `babel-parser` - [#​9766](https://togithub.com/babel/babel/pull/9766) Add TS support to [@​babel/parser](https://togithub.com/babel/parser)'s Scope ([@​nicolo-ribaudo](https://togithub.com/nicolo-ribaudo)) - [#​9865](https://togithub.com/babel/babel/pull/9865) Always register global bindings as exportable ([@​nicolo-ribaudo](https://togithub.com/nicolo-ribaudo)) - [#​9887](https://togithub.com/babel/babel/pull/9887) Fix TypeScript readonly error location ([@​existentialism](https://togithub.com/existentialism)) - [#​9869](https://togithub.com/babel/babel/pull/9869) ! remove constant context assertions ([@​tanhauhau](https://togithub.com/tanhauhau)) - [#​9890](https://togithub.com/babel/babel/pull/9890) Fix parsing typescript bodiless methods with the estree plugin also enabled ([@​devongovett](https://togithub.com/devongovett)) - `babel-traverse` - [#​9870](https://togithub.com/babel/babel/pull/9870) Fix flow types in traverse/path/family and enable flow ([@​danez](https://togithub.com/danez)) - `babel-plugin-proposal-class-properties`, `babel-plugin-transform-modules-commonjs`, `babel-types` - [#​9861](https://togithub.com/babel/babel/pull/9861) Fix: PrivateName Identifier should not be isReferenced. ([@​coreyfarrell](https://togithub.com/coreyfarrell)) - `babel-types` - [#​9832](https://togithub.com/babel/babel/pull/9832) Fix typo in cloneNode. ([@​evandervalk](https://togithub.com/evandervalk))

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