[vala] (13 commits) Non-fast-forward update to branch wip/ricotz/lsp-rev

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/ricotz/lsp-rev' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  41142de... DON'T MERGE vala: Add sanity check for SourceReference

Commits added to the branch:

  64e5fe2... Release 0.47.4 (*)
  16df768... Correct a few spelling errors in user visible strings (*)
  5eecd3b... vala: Fix base-access check for compact classes (2) (*)
  91b7b02... vala: Don't ignore errors in Parameter and acknowledge them (*)
  db50076... testrunner: Invalid tests and therefore expected failures m (*)
  9f9e1c0... DON'T MERGE vala: Add sanity check for SourceReference
  a58101b... parser: Handle incomplete expression statements.
  828ea82... parser: Handle exprs before try block
  55ef5dc... parser: Recover to next statement or end of block
  3b7756b... vala: Add InvalidExpression
  ee79ce2... vala: Add initial_argument_count to MA, OCE
  37fd4f7... vala: Handle unresolved symbols robustly.
  331f97c... parser: Use init_args = -1 for incomplete OCEs

(*) This commit already existed in another branch; no separate mail sent