Store parts in Kernel Library, resynthesize parts in Analyzer.

pkg/kernel/lib/binary/ast_to_binary.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.
 library kernel.ast_to_binary;
 
 import '../ast.dart';
 import '../import_table.dart';
 import 'tag.dart';
 import 'dart:convert';
 import 'dart:typed_data';
@@ skipping 294 matching lines @@
   visitLibrary(Library node) {
     insideExternalLibrary = node.isExternal;
     node.binaryOffset = _sink.flushedLength + _sink.length;
     writeByte(insideExternalLibrary ? 1 : 0);
     writeCanonicalNameReference(getCanonicalNameOfLibrary(node));
     writeStringReference(node.name ?? '');
     // TODO(jensj): We save (almost) the same URI twice.
     writeUriReference(node.fileUri ?? '');
     writeAnnotationList(node.annotations);
     writeLibraryDependencies(node);
+    writeLibraryParts(node);
     writeNodeList(node.typedefs);
     writeNodeList(node.classes);
     writeNodeList(node.fields);
     writeNodeList(node.procedures);
   }
 
   void writeLibraryDependencies(Library library) {
     _libraryDependencyIndex = library.dependencies.isEmpty
         ? const <LibraryDependency, int>{}
         : <LibraryDependency, int>{};
@@ skipping 11 matching lines @@
     writeLibraryReference(node.targetLibrary);
     writeStringReference(node.name ?? '');
     writeNodeList(node.combinators);
   }
 
   void visitCombinator(Combinator node) {
     writeByte(node.isShow ? 1 : 0);
     writeStringReferenceList(node.names);
   }
 
+  void writeLibraryParts(Library library) {
+    writeUInt30(library.parts.length);
+    for (int i = 0; i < library.parts.length; ++i) {
+      var partNode = library.parts[i];
+      writeLibraryPart(partNode);
+    }
+  }
+
+  void writeLibraryPart(LibraryPart node) {
+    writeNodeList(node.annotations);
+    writeStringReference(node.fileUri ?? '');
+  }
+
   void visitTypedef(Typedef node) {
     writeCanonicalNameReference(getCanonicalNameOfTypedef(node));
     writeOffset(node.fileOffset);
     writeStringReference(node.name);
     writeUriReference(node.fileUri ?? '');
     _typeParameterIndexer.enter(node.typeParameters);
     writeNodeList(node.typeParameters);
     writeNode(node.type);
     _typeParameterIndexer.exit(node.typeParameters);
   }
@@ skipping 1001 matching lines @@
     putOptional(node.name);
     put('${node.importUri}');
     node.visitChildren(this);
   }
 
   visitLibraryDependency(LibraryDependency node) {
     putOptional(node.name);
     node.visitChildren(this);
   }
 
+  @override
+  visitLibraryPart(LibraryPart node) {
+    put(node.fileUri);
+    node.visitChildren(this);
+  }
+
   visitCombinator(Combinator node) {
     node.names.forEach(put);
   }
 
   visitTypedef(Typedef node) {
     put(node.name);
     node.visitChildren(this);
   }
 
   visitClass(Class node) {
@@ skipping 171 matching lines @@
     _sink.add(_buffer.sublist(0, length));
     _buffer = new Uint8List(SIZE);
     flushedLength += length;
     length = 0;
   }
 
   void flushAndDestroy() {
     _sink.add(_buffer.sublist(0, length));
   }
 }