Move otherDependencies to globalDependencies.

pkg/compiler/lib/src/compiler.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.
 
 library dart2js.compiler_base;
 
 import 'dart:async' show
     EventSink,
     Future;
 
@@ skipping 140 matching lines @@
    */
   final TokenMap commentMap = new TokenMap();
 
   /**
    * Records global dependencies, that is, dependencies that don't
    * correspond to a particular element.
    *
    * We should get rid of this and ensure that all dependencies are
    * associated with a particular element.
    */
-  Registry globalDependencies;
+  GlobalDependencyRegistry globalDependencies;
 
   /**
    * Dependencies that are only included due to mirrors.
    *
    * We should get rid of this and ensure that all dependencies are
    * associated with a particular element.
    */
   // TODO(johnniwinther): This should not be a [ResolutionRegistry].
   final Registry mirrorDependencies =
       new ResolutionRegistry(null, new TreeElementMapping(null));
@@ skipping 316 matching lines @@
     _coreTypes = new _CompilerCoreTypes(_resolution);
     types = new Types(_resolution);
     tracer = new Tracer(this, this.outputProvider);
 
     if (verbose) {
       progress = new Stopwatch()..start();
     }
 
     // TODO(johnniwinther): Separate the dependency tracking from the enqueuing
     // for global dependencies.
-    globalDependencies =
-        new CodegenRegistry(this, new TreeElementMapping(null));
+    globalDependencies = new GlobalDependencyRegistry(this);
 
     if (emitJavaScript) {
       js_backend.JavaScriptBackend jsBackend =
           new js_backend.JavaScriptBackend(
               this, generateSourceMap: generateSourceMap,
               useStartupEmitter: useStartupEmitter);
       backend = jsBackend;
     } else {
       backend = new dart_backend.DartBackend(this, strips,
                                              multiFile: dart2dartMultiFile);
@@ skipping 1513 matching lines @@
 
   @override
   void parsePatchClass(ClassElement cls) {
     compiler.patchParser.measure(() {
       if (cls.isPatch) {
         compiler.patchParser.parsePatchClassNode(cls);
       }
     });
   }
 }
+
+class GlobalDependencyRegistry extends CodegenRegistry {
+  Setlet<Element> _otherDependencies;
+
+  GlobalDependencyRegistry(Compiler compiler)
+      : super(compiler, new TreeElementMapping(null));
+
+  void registerDependency(Element element) {
+    if (element == null) return;
+    if (_otherDependencies == null) {
+      _otherDependencies = new Setlet<Element>();
+    }
+    _otherDependencies.add(element.implementation);
+  }
+
+  Iterable<Element> get otherDependencies {
+    return _otherDependencies != null ? _otherDependencies : const <Element>[];
+  }
+}