dartdoc supports isAbstract on methods

pkg/dartdoc/lib/mirrors.dart

Index: pkg/dartdoc/lib/mirrors.dart
diff --git a/pkg/dartdoc/lib/mirrors.dart b/pkg/dartdoc/lib/mirrors.dart
index d0e9afdd9cbe4b4160ddc88d1602404a988062b2..2e5368d8a7e95c0a13d4108b04705a5ccbfe9522 100644
--- a/pkg/dartdoc/lib/mirrors.dart
+++ b/pkg/dartdoc/lib/mirrors.dart
@@ -201,6 +201,11 @@ abstract class InterfaceMirror implements TypeMirror, ObjectMirror {
   bool get isDeclaration;
 
   /**
+   * Is [:true:] if this class is declared abstract.
+   */
+  bool get isAbstract;
+
+  /**
    * Returns a list of the type arguments for this type.
    */
   List<TypeMirror> get typeArguments;
@@ -350,6 +355,11 @@ abstract class MethodMirror implements MemberMirror {
   TypeMirror get returnType;
 
   /**
+   * Is [:true:] if this method is declared abstract.
+   */
+  bool get isAbstract;
+
+  /**
    * Is [:true:] if this method is a constant constructor.
    */
   bool get isConst;