Revert Screen Position node changes

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Input/Geometry/ScreenPositionNode.cs

             switch (m_ScreenSpaceType)
             {
                 case ScreenSpaceType.Raw:
-                    visitor.AddShaderChunk(string.Format("{0}4 {1} = IN.{2};", precision, GetVariableNameForSlot(kOutputSlotId),
+                    visitor.AddShaderChunk(string.Format("{0}4 {1} = In.{2};", precision, GetVariableNameForSlot(kOutputSlotId),
-                        string.Format("float4((IN.{0}.xy / IN.{0}.w) * 2 - 1, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
+                        string.Format("float4((In.{0}.xy / In.{0}.w) * 2 - 1, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
-                        string.Format("float4((IN.{0}.xy / IN.{0}.w) * 2 - 1, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
+                        string.Format("float4((In.{0}.xy / In.{0}.w) * 2 - 1, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
-                        string.Format("float4(IN.{0}.x * _ScreenParams.x / _ScreenParams.y, IN.{0}.y, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
+                        string.Format("float4(In.{0}.x * _ScreenParams.x / _ScreenParams.y, In.{0}.y, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
-                        string.Format("float4(IN.{0}.xy / IN.{0}.w, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
+                        string.Format("float4(In.{0}.xy / In.{0}.w, 0, 0)", ShaderGeneratorNames.ScreenPosition)), true);
                     break;
             }
         }