Android: classes from different product flavor not resolved/linked properly

[bvschaik]

Describe the bug
I have an Android project with two product flavors, and thus multiple source sets. When a class from the main (shared) source set is used in another source set, the class is not recognized. For Kotlin sources, it generates <Error class: unknown class> for the type, for Java sources it does display the type name but doesn't generate a link.

Expected behaviour
Class is resolved and linked properly for both Kotlin and Java sources.

To Reproduce

1. Clone this example project
2. Run ./gradlew dokkaHtml
3. Look at the generated documentation for the "PathFinder" classes:

BasicPathFinder (in same source set as Direction): fun findPath(direction: Direction, distance: Int): Boolean - Direction linked to correct page
AdvancedKotlinPathFinder (Kotlin, in different source set): fun findPath(direction: <Error class: unknown class>, distance: Int): Boolean
AdvancedJavaPathFinder (Java, in different source set): open fun findPath(direction: Direction, distance: Int): Boolean - Direction not linked to anything

Dokka configuration
Default configuration.

Installation

• Operating system: macOS
• Build tool: Gradle v7.5
• Dokka version: 1.7.20

Additional context
Class not resolved in Kotlin might be related to #503
Not linking might be resolved by #2877

Are you willing to provide a PR?
If I could, I would. However, I spent a day trying to find out where the unknown class came from, but apparently it's deep down in dokka-kotlin-analysis-intellij.