anchor.diff:        ..insertAll(endOfDirectDependencies, transitiveDependencyOutput)
         ..add('')
         ..add('$kDependencyChecksum$checksumString');
  -    
  +
       // Remove trailing lines.
       while (output.last.isEmpty)
         output.removeLast();
  
positive.code: }
  
  
  // Produces a 16-bit checksum from the codePoints of the package name and 
  // version strings using Fletcher's algorithm.
  int _computeChecksum(List<String> values) {
    int lowerCheck = 0;
  
negative.code:   final List<PubspecLine> inputData; // Each line of the pubspec.yaml file, parsed(ish).
  
    /// The package checksum.
    ///
    /// If this was not found in the pubspec, a synthetic checksum is created
    /// with a value of `-1`.
    final PubspecChecksum checksum;
  