`Receiver::class.java` resolves differently from K1:
K1: getJavaClass(KClass) - value argument
K2: KClass.<get-java>() - property receiver
This caused the lookup to fail, so
`Intent(context, Receiver::class.java)` dropped the second argument.
log:
"Couldn't find JVM intrinsic property kotlin.jvm java in kotlin.jvm.JvmClassMappingKt"
This caused false positives in `java/android/implicit-pendingintents`
The fix mirrors 5c36e63
Fixes github#20153
Assisted-by: Claude Opus 4.8 - diagnostics & initial fix