Add mirrors_reader_test.

tests/lib/mirrors/mirrors_visitor.dart

Index: tests/lib/mirrors/mirrors_visitor.dart
diff --git a/tests/lib/mirrors/mirrors_visitor.dart b/tests/lib/mirrors/mirrors_visitor.dart
new file mode 100644
index 0000000000000000000000000000000000000000..3eef8eebf522ed38bd34067cbfb8b888db0857b6
--- /dev/null
+++ b/tests/lib/mirrors/mirrors_visitor.dart
@@ -0,0 +1,92 @@
+// Copyright (c) 2014, 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 mirrors.visitor;
+
+import 'dart:mirrors';
+
+abstract class MirrorsVisitor {
+  visitMirror(Mirror mirror) {
+    if (mirror == null) return;
+
+    if (mirror is FunctionTypeMirror) {
+      visitFunctionTypeMirror(mirror);
+    } else if (mirror is ClassMirror) {
+      visitClassMirror(mirror);
+    } else if (mirror is TypedefMirror) {
+      visitTypedefMirror(mirror);
+    } else if (mirror is TypeVariableMirror) {
+      visitTypeVariableMirror(mirror);
+    } else if (mirror is TypeMirror) {
+      visitTypeMirror(mirror);
+    } else if (mirror is ParameterMirror) {
+      visitParameterMirror(mirror);
+    } else if (mirror is VariableMirror) {
+      visitVariableMirror(mirror);
+    } else if (mirror is MethodMirror) {
+      visitMethodMirror(mirror);
+    } else if (mirror is LibraryMirror) {
+      visitLibraryMirror(mirror);
+    } else if (mirror is InstanceMirror) {
+      visitInstanceMirror(mirror);
+    } else if (mirror is ObjectMirror) {
+      visitObjectMirror(mirror);
+    } else if (mirror is DeclarationMirror) {
+      visitDeclarationMirror(mirror);
+    } else {
+      throw new StateError(
+          'Unexpected mirror kind ${mirror.runtimeType}: $mirror');
+    }
+  }
+
+  visitClassMirror(ClassMirror mirror) {
+    visitObjectMirror(mirror);
+    visitTypeMirror(mirror);
+  }
+
+  visitDeclarationMirror(DeclarationMirror mirror) {
+
+  }
+
+  visitFunctionTypeMirror(FunctionTypeMirror mirror) {
+    visitClassMirror(mirror);
+  }
+
+  visitInstanceMirror(InstanceMirror mirror) {
+    visitObjectMirror(mirror);
+  }
+
+  visitLibraryMirror(LibraryMirror mirror) {
+    visitObjectMirror(mirror);
+    visitDeclarationMirror(mirror);
+  }
+
+  visitMethodMirror(MethodMirror mirror) {
+    visitDeclarationMirror(mirror);
+  }
+
+  visitObjectMirror(ObjectMirror mirror) {
+
+  }
+
+  visitParameterMirror(ParameterMirror mirror) {
+    visitVariableMirror(mirror);
+  }
+
+  visitTypedefMirror(TypedefMirror mirror) {
+    visitTypeMirror(mirror);
+  }
+
+  visitTypeMirror(TypeMirror mirror) {
+    visitDeclarationMirror(mirror);
+  }
+
+  visitTypeVariableMirror(TypeVariableMirror mirror) {
+    visitTypeMirror(mirror);
+  }
+
+  visitVariableMirror(VariableMirror mirror) {
+    visitDeclarationMirror(mirror);
+  }
+}