[kernel] [partial] Streaming of kernel binary without AST nodes

pkg/kernel/lib/ast.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// -----------------------------------------------------------------------
 ///                           ERROR HANDLING
 /// -----------------------------------------------------------------------
 ///
 /// As a rule of thumb, errors that can be detected statically are handled by
 /// the frontend, typically by translating the erroneous code into a 'throw' or
@@ skipping 3568 matching lines @@
 
   /// For named parameters, this is the name of the parameter. No two named
   /// parameters (in the same parameter list) can have the same name.
   ///
   /// In all other cases, the name is cosmetic, may be empty or null,
   /// and is not necessarily unique.
   String name;
   int flags = 0;
   DartType type; // Not null, defaults to dynamic.
 
+  /// Offset of the declaration, set and used when writing the binary.
+  int binaryOffset = -1;
+
   /// For locals, this is the initial value.
   /// For parameters, this is the default value.
   ///
   /// Should be null in other cases.
   Expression initializer; // May be null.
 
   VariableDeclaration(this.name,
       {this.initializer,
       this.type: const DynamicType(),
       bool isFinal: false,
@@ skipping 531 matching lines @@
 /// different [FunctionType] objects.
 class TypeParameter extends TreeNode {
   String name; // Cosmetic name.
 
   /// The bound on the type variable.
   ///
   /// Should not be null except temporarily during IR construction.  Should
   /// be set to the root class for type parameters without an explicit bound.
   DartType bound;
 
+  /// Offset of the declaration, set and used when writing the binary.
+  int binaryOffset = 0;
+
   TypeParameter([this.name, this.bound]);
 
   accept(TreeVisitor v) => v.visitTypeParameter(this);
 
   visitChildren(Visitor v) {
     bound.accept(v);
   }
 
   transformChildren(Transformer v) {
     bound = v.visitDartType(bound);
@@ skipping 324 matching lines @@
 /// typedef has not been assigned a canonical name yet.
 ///
 /// Returns `null` if the typedef is `null`.
 CanonicalName getCanonicalNameOfTypedef(Typedef typedef_) {
   if (typedef_ == null) return null;
   if (typedef_.canonicalName == null) {
     throw '$typedef_ has no canonical name';
   }
   return typedef_.canonicalName;
 }