/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so is in kdevelop-dev 4:5.2.1-1ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.52
/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.52