Transpilation of @babel/runtime

[micopiira]

What problem does this feature solve?

Babel seems to have fixed babel/babel#7597 so I am wondering if transpilation of @babel/runtime is still necessary?

vue-cli/packages/@vue/babel-preset-app/index.js

Lines 203 to 211 in bd7ad93

	// there are some untranspiled code in @babel/runtime
	// https://github.com/babel/babel/issues/9903
	include: [/@babel[\/|\\\\]runtime/],
	presets: [
	[require('@babel/preset-env'), {
	useBuiltIns,
	corejs: useBuiltIns ? 3 : false
	}]
	]

What does the proposed API look like?

remove unnecessary (?) transpilation of @babel/runtime

[haoqunjiang]

Still waiting for this issue to be resolved babel/babel#9277