Shaders "case_673047-ReliefTerrain2Geometry" open gl compiled version throws error related with Material Editor Inspector. At first it looks like it could be caused by poorly written shader, but I believe it can't affect default material editor.

1. Open project (attached by Lukas).
2. Select material "New Material", you should get tons of errors related to Material inspector view. (this material using shader "Compiled-case_673047-ReliefTerrain2Geometry").

"Compiled-case_673047-ReliefTerrain2Geometry" is shaders "case_673047-ReliefTerrain2Geometry" compiled open gl version.
The think is that shader "case_673047-ReliefTerrain2Geometry" in material doesn't throw error. That makes me bellive that problem is caused by material editor or shader compiler.

Reproduced: 5.0.0f4, 5.0.0b12, 4.6.3f1