ShaderLab: "Blend factor expected" incorrect/pedantic error

[pvirdone-s8]

ShaderLab code inspection gives an error when a Blend is set to off in a SubShader. Encountered in code distributed in the Amplify Occlusion plugin.

Here's some code that demonstrates the error when used in Rider 2018.1.4 with Unity 2017.4.1f1. Also reproed with latest Rider EAP.

Shader "Unlit/demo" { SubShader { Pass { Blend 0 Off } } }

[IvanPashchenko]

@citizenmatt NB: this is not a valid syntax according to the Unity docs, you may want to check with Unity people on the updated parser
https://docs.unity3d.com/Manual/SL-Blend.html