Bug with highlighting of statistical functions

## **Describe the bug**

When using kandy and statistics with gradle, the resolve with statistical layers doesn't work correctly

## **To Reproduce**
1. Disable k2-kotlin plugin
1. Use any stats layer

https://github.com/Kotlin/kandy/blob/main/kandy-lets-plot/src/test/kotlin/org/jetbrains/kotlinx/kandy/letsplot/samples/guides/statistics.kt

## **Screenshots**

## **Library Version, Tool version, and Environment**
(please complete the following information):
- kandy library version: 0.5.0
- statistics version: 0.1.0

Start with kandy-lets-plot/src/test/kotlin/org/jetbrains/kotlinx/kandy/letsplot/samples/guides/statistics.kt and reproduce the problem using Gradle with the k2-kotlin plugin disabled. Check how a statistical layer is resolved; done means any stats layer resolves correctly in the stated kandy 0.5.0 and statistics 0.1.0 setup.

Written by the indexing model from the issue text.