fix: remove imported types from export

[JLHwung]

Q	A
Fixed Issues?	Fixes #12499
Patch: Bug Fix?	Y
Major: Breaking Change?
Minor: New Feature?
Tests Added + Pass?	Yes
Documentation PR Link
Any Dependency Changes?
License	MIT

In this PR we register global types for imported types, so that when they are exported as values, they will be removed from exports just like other type declarations. This aligns to current tsc behaviour.

[babel-bot]

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/48923/

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[nicolo-ribaudo]

Can you check that TS's --importsNotUsedAsValues option matches Babel's onlyRemoveTypeImports: true?

[JLHwung]

It seems to me TS emits same outputs among all importsNotUsedAsValues values:

// @importsNotUsedAsValues: error

// @showEmit

// @filename: child.ts
export type Node = {};


// @filename: main.ts
import type { Node } from "./child";
export { Node }

Workbench Repro

I have added a new testcase for onlyRemoveTypeImports: true.