warning: ATTENTION!
This build uses unsafe internal compiler arguments:

-XXLanguage:+MultiPlatformProjects

This mode is not recommended for production use,
as no stability/compatibility guarantees are given on
compiler or generated code. Use it at your own risk!

error: file '$TESTDATA_DIR$/src/a.kt' can be a part of only one module, but is listed as a source for both `a` and `b`, please check you -Xfragment-sources options.
COMPILATION_ERROR