The build script manually specifies which directories are parts of
which source sets. And it did that wrong: all directories were just
added to the nativeMain source set.
This was an incorrect configuration (matching expect and actual were
getting into the same source set), and K2 compiler was not really happy
with that.
This commit fixes the correspondence between source sets and source
directories in kotlin-native/performance/framework build script, thus
fixes the build for that benchmark with K2.
Svyatoslav Scherbina
e22d9821e2