anchor.diff:    by-spec."bower-logger"."~0.2.1" =
       self.by-version."bower-logger"."0.2.2";
     by-version."bower-logger"."0.2.2" = lib.makeOverridable self.buildNodePackage {
  -    name = "bower-logger-0.2.2";
  +    name = "node-bower-logger-0.2.2";
       src = [
         (fetchurl {
           url = "http://registry.npmjs.org/bower-logger/-/bower-logger-0.2.2.tgz";
  
positive.code:   by-spec."typechecker"."~2.0.1" =
      self.by-version."typechecker"."2.0.8";
    by-version."typechecker"."2.0.8" = lib.makeOverridable self.buildNodePackage {
      name = "typechecker-2.0.8";
      src = [
        (fetchurl {
          url = "http://registry.npmjs.org/typechecker/-/typechecker-2.0.8.tgz";
  
negative.code:   by-spec."bindings"."1.0.0" =
      self.by-version."bindings"."1.0.0";
    by-version."bindings"."1.0.0" = lib.makeOverridable self.buildNodePackage {
      name = "node-bindings-1.0.0";
      src = [
        (fetchurl {
          url = "http://registry.npmjs.org/bindings/-/bindings-1.0.0.tgz";
  