Backported fixes

Fix HK quoted pattern type variables #16907
Fix caching issue caused by incorrect isProvisional check #16989
Fix race condition in new LazyVals #16975
Fix "-Wunused: False positive on parameterless enum member" #16927
Register usage of symbols in non-inferred type trees in CheckUnused #16939
Traverse annotations instead of just registering in -W #16956
Ignore parameter of accessors in -Wunused #16957
Improve override detection in CheckUnused #16965
WUnused: Fix unused warning in synthetic symbols #17020
Fix WUnused with idents in derived code #17095
WUnused: Fix for symbols with synthetic names and unused transparent inlines #17061
Skip extension method params in WUnused #17178
Fix wunused false positive when deriving alias type #17157
Fix WUnused for accessible symbols that are renamed #17177
Fix WUnused false positive in for #17176
Make CheckUnused run both after Typer and Inlining #17206
Disable WUnused for params of non-private defs #17223

Contributors

Thank you to all the contributors who made this release possible 🎉

According to git shortlog -sn --no-merges 3.3.0-RC3..3.3.0-RC4 these are:

    41 Szymon Rodziewicz
     4 Paul Coral
     3 Paweł Marks
     1 Guillaume Martres
     1 Kacper Korban
     1 Nicolas Stucki