Fix typescript import elision

[Retsam]

Q	A
Fixed Issues?	N/A (No open issue that I've found)
Patch: Bug Fix?	👍
Major: Breaking Change?
Minor: New Feature?
Tests Added + Pass?	Yes
Documentation PR Link
Any Dependency Changes?
License	MIT

Fixes an issue where babel-plugin-transform-typescript is not properly eliding its imports: if there is any unnamed import (e.g. import 'foo'), then it bailed out and does not properly elide the other imports in the file.

So, while this would correctly compile:

import { Foo } from "foo";

const foos = [] as Foo[];

to

const foos = [];

If an unnamed import was added, the Foo import would no longer be elided. So:

import "something";
import { Foo } from "foo";

const foos = [] as Foo[];

would compile to

import "something";
import { Foo } from "foo";

const foos = [];

[babel-bot]

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/9073/

[babel-bot]

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/9071/