Parameters with function types supported + Added features in mirrors implementation

lib/dartdoc/mirrors/mirrors.dart

Index: lib/dartdoc/mirrors/mirrors.dart
diff --git a/lib/dartdoc/mirrors/mirrors.dart b/lib/dartdoc/mirrors/mirrors.dart
index 3f61969d82cf538c1cfc5c64856aabd079380835..0cf1075730c6e7aaf1140356a0bedc25294bb903 100644
--- a/lib/dartdoc/mirrors/mirrors.dart
+++ b/lib/dartdoc/mirrors/mirrors.dart
@@ -403,6 +403,18 @@ interface ParameterMirror extends Mirror {
    * Returns true if this parameter is optional.
    */
   bool isOptional();
+
+  /**
+   * Returns [:true:] iff this parameter is an initializing formal of a
+   * constructor. That is, if it is of the form [:this.x:] where [:x:] is a
+   * field.
+   */
+  bool isInitializingFormal();
+
+  /**
+   * Returns the initialized field, if this parameter is an initializing formal.
+   */
+  FieldMirror initializedField();
 }
 
 /**