Otherwise, when the function has inline class parameter, we get ICE.
We do not get the error without inline class parameter, since we
substitute type parameters in limited situations, which includes
inline class lowering.
#KT-51157 Fixed
There are two possible scenarios, when fun interface method with inline
class parameter can be compiled.
First is when we compile fun interface itself before SAM adapter. In
that case, fun interface is lowered before we lower SAM adapter. Thus,
its method is mangled and mangling in the second time is an error.
Second is when we compile SAM adapter before the fun interface. In that
case, fun interface is not lowered, and we have to mangle the method.
The only way to distinguish there two cases I can think of is to check
whether the overridden method is already mangled, in other words, check,
whether the overridden method's suffix is doubled.
#KT-48499: Fixed
If we implement default function with default parameters in inline
class, the receivers will be added to parameter list
(see ac7538a269). But since they
are not present in source parameters, we should not count them when we
compute mask for default parameters.
#KT-49977 Fixed
We are going to deprecate `WITH_RUNTIME` directive. The main reason
behind this change is that `WITH_STDLIB` directive better describes
its meaning, specifically it will add kotlin stdlib to test's classpath.
In case the cast value is used as a receiver to a private method call,
the cast is actually necessary, see KT-48927. Also, this optimization
has backfired once already (see kt48659_identityEqualsWithCastToAny.kt).
It seems that the best way to optimize these casts is not to generate
them in the first place, and/or use bytecode postprocessing.
Apparently the only kind of casts which need to be eliminated are those
which occur on an inline class to its supertype. Otherwise the
unsafe-coerce intrinsic is inserted at the incorrect place, and several
tests fail (uncastInlineClassToAnyAndBack.kt, genericOverride.kt,
classGenericOverride.kt).
#KT-48927 Fixed
Ilmir Usmanov