Add proper signatureHelp for unapply methods#15203

Merged

rochala merged 8 commits intoscala:mainfrom

rochala:signature-help-unapply

May 19, 2022

Commits on May 13, 2022

Commits on May 16, 2022

add tests from language reference and fix accordingly
rochala
committed

Commits on May 17, 2022

Commits on May 18, 2022

remove duplicated method available by extension method
rochala
committed

Commits on May 19, 2022

add comments, simplify code and add missing cases
rochala
committed