anchor.diff:    by-spec."ansi-styles"."~1.0.0" =
       self.by-version."ansi-styles"."1.0.0";
     by-version."ansi-styles"."1.0.0" = lib.makeOverridable self.buildNodePackage {
  -    name = "node-ansi-styles-1.0.0";
  +    name = "ansi-styles-1.0.0";
  +    bin = false;
       src = [
         (fetchurl {
           url = "http://registry.npmjs.org/ansi-styles/-/ansi-styles-1.0.0.tgz";
  
positive.code:   by-spec."minimist"."~0.0.1" =
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    by-version."minimist"."0.0.10" = lib.makeOverridable self.buildNodePackage {
      name = "node-minimist-0.0.10";
      src = [
        (fetchurl {
          url = "http://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz";
  
negative.code:   by-spec."intersect"."~0.0.3" =
      self.by-version."intersect"."0.0.3";
    by-version."intersect"."0.0.3" = lib.makeOverridable self.buildNodePackage {
      name = "intersect-0.0.3";
      bin = false;
      src = [
        (fetchurl {
          url = "http://registry.npmjs.org/intersect/-/intersect-0.0.3.tgz";
  