Move Compiler.libraries to LibraryLoader.

sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart

 // Copyright (c) 2012, 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.
 
 part of dart_backend;
 
 // TODO(ahe): This class is simply wrong.  This backend should use
 // elements when it can, not AST nodes.  Perhaps a [Map<Element,
 // TreeElements>] is what is needed.
 class ElementAst {
@@ skipping 144 matching lines @@
         && element is !AbstractFieldElement)
         || element.library == mirrorHelperLibrary;
   }
 
   void assembleProgram() {
     // Conservatively traverse all platform libraries and collect member names.
     // TODO(antonm): ideally we should only collect names of used members,
     // however as of today there are problems with names of some core library
     // interfaces, most probably for interfaces of literals.
     final fixedMemberNames = new Set<String>();
-    for (final library in compiler.libraries.values) {
+    for (final library in compiler.libraryLoader.libraries) {
       if (!library.isPlatformLibrary) continue;
       library.implementation.forEachLocalMember((Element element) {
         if (element.isClass) {
           ClassElement classElement = element;
           classElement.forEachLocalMember((member) {
             final name = member.name;
             // Skip operator names.
             if (!name.startsWith(r'operator$')) {
               // Fetch name of named constructors and factories if any,
               // otherwise store regular name.
@@ skipping 263 matching lines @@
         ..close();
     compiler.assembledCode = assembledCode;
 
     // Output verbose info about size ratio of resulting bundle to all
     // referenced non-platform sources.
     logResultBundleSizeInfo(topLevelElements);
   }
 
   void logResultBundleSizeInfo(Set<Element> topLevelElements) {
     Iterable<LibraryElement> referencedLibraries =
-        compiler.libraries.values.where(isUserLibrary);
+        compiler.libraryLoader.libraries.where(isUserLibrary);
     // Sum total size of scripts in each referenced library.
     int nonPlatformSize = 0;
     for (LibraryElement lib in referencedLibraries) {
       for (CompilationUnitElement compilationUnit in lib.compilationUnits) {
         nonPlatformSize += compilationUnit.script.file.length;
       }
     }
     int percentage = compiler.assembledCode.length * 100 ~/ nonPlatformSize;
     log('Total used non-platform files size: ${nonPlatformSize} bytes, '
         'bundle size: ${compiler.assembledCode.length} bytes (${percentage}%)');
@@ skipping 177 matching lines @@
   }
 
   Constant compileMetadata(MetadataAnnotation metadata,
                            Node node,
                            TreeElements elements) {
     return measure(() {
       return constantCompiler.compileMetadata(metadata, node, elements);
     });
   }
 }