Bug: vim-lsp fails to parse headers sent from volar when using @volar/vue-language-server with --stdio flag

[tsukkee]

For example, when the user don't set volar.config.js, volar v0.33.0 or later calls console.log for logging. But, when using volar with --stdio, texts output from console.log also included to messages sent to vim-lsp. Then, it breaks parsing function in vim-lsp and I cannnot use volar... After I replaced console.log to console.warn, which means the message goes to stderr, both volar and vim-lsp look work fine.
https://github.com/johnsoncodehk/volar/blob/3852ee85c8d7a8e20e0bca084d2b73cf11491f93/packages/vue-language-service/src/languageService.ts#L519

Also, following code could cause same problem.
https://github.com/johnsoncodehk/volar/blob/271cdc7c3ad9f93725b422ce7e4086775b09929b/packages/shared/src/ts.ts#L142

[johnsoncodehk]

Thanks for the report! Don't know that logging had big impact. 😅

[tsukkee]

@johnsoncodehk If just replacing console.log to console.warn is good solution for this project, I'll make pull request for this. Does it look good to you? If no, I'll just wait for the fix.
Anyway, I'm very happy since now I could share the problem with you 😄 Thank you!

[johnsoncodehk]

Of course, nice to have a PR for this. :)