Describe the bug
Following up on #531 (comment), navigating to a kotlin class opens the decompiled code, instead of the actual source

To Reproduce
Steps to reproduce the behavior:

1. unzip duallang.zip and open the project
2. Open src/main/java/com/example/MessageApp.java
3. Cmd+click on MessageService, it opens a decompiled com/example/MessageService.kt
4. similarly, Cmd+T to open the symbol search, MessageService shows but opens the same decompiled code when selected

Expected behavior
src/main/kotlin/com/example/MessageService.kt should be opened