Generics.Collections library don't working with FPC 3.0.0-rc1 release for Unix 64 bits (Internal error 2010021405).
To solve this please merge rev. 30239 from FPC trunk.
A regression when creating TParam: http://bugs.freepascal.org/view.php?id=28624
Request for merging r31911 into final 3.0 version. With current FPC 3.0 is impossible to use Generics.Collections library with Lazarus packages. More details: http://bugs.freepascal.org/view.php?id=28766
Please, make native win x64 compiler support! Win32 is obsolete and not supported in win 8.1 or win 10