Rewrite KotlinClassFinder to Kotlin
(cherry picked from commit e37f6e1)
Rewrite VirtualFileKotlinClassFinder to Kotlin
(cherry picked from commit ffa824c)
Use VirtualFileFinder.SERVICE in InlineCodegenUtil
(cherry picked from commit 6d68eb2)
DRAFT: VirtualFileFinderFactory
(cherry picked from commit ba1a2cf)