📎 Add allowReturnOutsideFunction option to the parser

[Boshen]

Description

From babel

allowReturnOutsideFunction: By default, a return statement at the top level raises an error. Set this to true to accept such code.

Node scripts and bundlers all support this.

An example found in the wild: https://github.com/microsoft/vscode/blob/main/scripts/update-xterm.js#L24

[ematipico]

@MichaReiser @xunilrj what do you think? Is it a configuration that we really need? Is it something that we can deduce from the environment?