Rename MirrorSystem.getName calls in dart2dart.

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

Index: sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
diff --git a/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart b/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
index 5d27dc06acb14ca06ab916234b8169127b6eb543..9f4c8163c6da1d4e551259836acbe9b0df7020a9 100644
--- a/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
+++ b/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
@@ -122,6 +122,12 @@ class DartBackend extends Backend {
   final bool stripAsserts;
   // TODO(antonm): make available from command-line options.
   final bool outputAst = false;
+  final Map<Node, String> renames;
+  final Map<LibraryElement, String> imports;
+  final Map<ClassNode, List<Node>> memberNodes;
+  // TODO(zarah) Maybe change this to a command-line option.
+  // Right now, it is set by the tests.
+  bool useMirrorHelperLibrary = false;
 
   Map<Element, TreeElements> get resolvedElements =>
       compiler.enqueuer.resolution.resolvedElements;
@@ -171,6 +177,9 @@ class DartBackend extends Backend {
 
   DartBackend(Compiler compiler, List<String> strips)
       : tasks = <CompilerTask>[],
+        renames = new Map<Node, String>(),
+        imports = new Map<LibraryElement, String>(),
+        memberNodes = new Map<ClassNode, List<Node>>(),
         forceStripTypes = strips.indexOf('types') != -1,
         stripAsserts = strips.indexOf('asserts') != -1,
         super(compiler);
@@ -395,8 +404,6 @@ class DartBackend extends Backend {
     }
     topLevelElements.forEach(makePlaceholders);
     // Create renames.
-    Map<Node, String> renames = new Map<Node, String>();
-    Map<LibraryElement, String> imports = new Map<LibraryElement, String>();
     bool shouldCutDeclarationTypes = forceStripTypes
         || (compiler.enableMinification
             && isSafeToRemoveTypeDeclarations(classMembers));
@@ -431,7 +438,6 @@ class DartBackend extends Backend {
     }
 
     final topLevelNodes = <Node>[];
-    final memberNodes = new Map<ClassNode, List<Node>>();
     for (final element in sortedTopLevels) {
       topLevelNodes.add(elementAsts[element].ast);
       if (element.isClass() && !element.isMixinApplication) {
@@ -443,6 +449,10 @@ class DartBackend extends Backend {
       }
     }
 
+    if (useMirrorHelperLibrary && compiler.mirrorsLibrary != null) {
+      MirrorRenamer.addMirrorHelperImport(imports);
+    }
+
     final unparser = new EmitterUnparser(renames);
     emitCode(unparser, imports, topLevelNodes, memberNodes);
     compiler.assembledCode = unparser.result;
@@ -468,6 +478,12 @@ class DartBackend extends Backend {
   }
 
   log(String message) => compiler.log('[DartBackend] $message');
+
+  void registerStaticSend(Element element, Node node) {
+    if (useMirrorHelperLibrary && compiler.mirrorsLibrary != null) {
+      MirrorRenamer.handleStaticSend(renames, element, node, compiler);
+    }
+  }
 }
 
 class EmitterUnparser extends Unparser {