Previously `findJavaRootDescriptor` was return source root for random
module. This cause build errors for mpp (same file may appear in
multiple source roots of common and platform modules)
#KT-28988 Fixed
Report about unsupported targets once per target type, show presentable
chunks list and don't show more then 5 chunks.
Example: "Native is not yet supported in IDEA internal build system.
Please use Gradle to build a, b, c, d, e and 10 other (enable 'Delegate
IDE build/run actions to Gradle' in Settings)."
#KT-26980 Fixed
#KT-28316 Fixed
Sergey Rostov