Fix #1316 - Vue.JS tests failures

[zulus]

Real fix is in TestVue.java (-1 is no longer required)

In the meantime I also updated server and remove unnecessary System.out.println

[vrubezhny]

/request-license-review

[vrubezhny]

@zulus Still the same errors when building&testing on Jenkins as well as when I do it locally.

[zulus]

strange, I made a lot of successful tests before commit. I'll try again

[zulus]

Problem appeared after modification on LSP4E side: eclipse-lsp4e/lsp4e@7c770c3

In general problem is with LSPEclipseUtils.toCompletionParams

1. it always sends triggerCharacter
2. force sends CompletionTriggerKind.TriggerCharacter i char is on potential trigger list (is not possible to change this)

Due this vue server on top of recent version lost a lot of potential completions, other servers probably too (depending to triggerCharacter implementation)

For now I modified tests

[mickaelistria]

If you can provide the necessary fix in LSP4E, it would be very welcome!

[mickaelistria]

@zulus Is it OK to merge now? test are not failing with this latest patch. Is there anything else to consider?

[zulus]

With current lsp4e state I can’t do more. Should be merged

[mickaelistria]

OK. I think what matter most is really to check that the LS works overall; the very particular workflow in the test isn't too important here.