anchor.diff:  
   library fasta.kernel_formal_parameter_builder;
   
  -import 'kernel_shadow_ast.dart' show VariableDeclarationJudgment;
  +import 'package:kernel/ast.dart' show VariableDeclaration;
   
   import '../modifier.dart' show finalMask;
   
  
positive.code:         KernelTypeBuilder,
          MetadataBuilder;
  
  import '../source/source_library_builder.dart' show SourceLibraryBuilder;
  
  class KernelFormalParameterBuilder
      extends FormalParameterBuilder<KernelTypeBuilder> {
    VariableDeclarationJudgment declaration;
    final int charOffset;
  
    KernelFormalParameterBuilder(
        List<MetadataBuilder> metadata,
  
negative.code:       String name,
        bool hasThis,
        KernelLibraryBuilder compilationUnit,
        int charOffset)
        : super(metadata, modifiers, type, name, hasThis, compilationUnit,
              charOffset);
  
    VariableDeclaration get target => declaration;
  
    VariableDeclaration build(KernelLibraryBuilder library) {
      if (declaration == null) {
        declaration = new VariableDeclarationJudgment(name, 0,
            type: type?.build(library),
  