anchor.diff:  }
   
   @JS()
  -class SkAffinityEnum {
  +@staticInterop
  +class SkAffinityEnum {}
  +
  +extension SkAffinityEnumExtension on SkAffinityEnum {
     external SkAffinity get Upstream;
     external SkAffinity get Downstream;
   }
   
   @JS()
  -class SkAffinity {
  +@staticInterop
  +class SkAffinity {}
  +
  +extension SkAffinityExtension on SkAffinity {
     external int get value;
   }
   
  
positive.code: }
  
  @JS()
  class SkTextDirectionEnum {
    external SkTextDirection get RTL;
    external SkTextDirection get LTR;
  }
  
  @JS()
  class SkTextDirection {
    external int get value;
  }
  
  
negative.code: external ColorSpace get SkColorSpaceSRGB;
  
  @JS()
  @staticInterop
  class ColorSpace {}
  
  @JS()
  