At the moment, SubclassOptInRequired is marked with the
ExperimentalSubclassOptIn annotation. However, it does not work
as expected due to a missing opt-in error. To use SubclassOptInRequired,
an explicit opt-in is necessary because SubclassOptInRequired is an
unstable feature now.
^KT-64739
It is required for stabilizing previously experimental
builtin functions and classes (KT-53778)
in order to mark them WasExperimental,
so that they are available for previously opted in users
Initially, it was added accidentally as part of e3f987459c
and missed all out processes.
Adding @SinceKotlin("1.7") after the annotation has already been
published before is not really a problem, because it only may be used
with an experimental `-Xcontext-receivers` flag, thus it doesn't have
to be a part of our regular backward compatibility routine.
^KT-55226 Fixed
Skip SOURCE-retention annotations in builtins serialization tests,
because otherwise the source analysis result can't be equal to the
metadata deserialization result.
#KT-53073 Fixed
Before this commit, we added Enum.entries only in case when
LanguageFeature.EnumEntries was ON (with an exception in K1/Java case).
In this commit we add Enum.entries unconditionally, and in case
the language feature is OFF we filter them out during tower resolve.
- Int.toChar was left non-deprecated because the replacement is not intrinsic yet.
- Number.toChar was left non-deprecated because otherwise the deprecation propagates to the override, Int.toChar.
KT-23451
Dmitriy Novozhilov