Dartdoc and Apidoc updated to use dart2js through the mirror system.

lib/dartdoc/mirrors/mirrors_util.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('mirrors.util');
 
 #import('mirrors.dart');
+#import('../../compiler/implementation/util/characters.dart');
 
 //------------------------------------------------------------------------------
 // Utility functions for using the Mirror API
 //------------------------------------------------------------------------------
 
 /**
  * Returns an iterable over the type declarations directly inheriting from
  * the declaration of this type.
  */
-Iterable<InterfaceMirror> computeSubdeclarations(MirrorSystem system,
-                                                 InterfaceMirror type) {
+Iterable<InterfaceMirror> computeSubdeclarations(InterfaceMirror type) {
   type = type.declaration;
   var subtypes = <InterfaceMirror>[];
-  system.libraries().forEach((_, library) {
+  type.system.libraries().forEach((_, library) {
     for (InterfaceMirror otherType in library.types().getValues()) {
       var superClass = otherType.superclass();
       if (superClass !== null) {
         superClass = superClass.declaration;
         if (type.library() === superClass.library()) {
           if (superClass == type) {
              subtypes.add(otherType);
           }
         }
       }
@@ skipping 31 matching lines @@
             operatorName == mirror.operatorName) {
           foundMirror = mirror;
         }
       } else {
         foundMirror = mirror;
       }
     }
   });
   return foundMirror;
 }
+
+LibraryMirror findLibrary(MemberMirror member) {
+  ObjectMirror owner = member.surroundingDeclaration();
+  if (owner is LibraryMirror) {
+    return owner;
+  } else if (owner is TypeMirror) {
+    return owner.library();
+  }
+  throw new Exception('Unexpected owner: ${owner}');
+}
+
+
+/**
+ * Returns the column of the start of a location.
+ */
+int getLocationColumn(Location location) {
+  String text = location.source().text();
+  int index = location.start()-1;
+  var column = 0;
+  while (0 <= index && index < text.length) {
+    var charCode = text.charCodeAt(index);
+    if (charCode == $CR || charCode == $LF) {
+      break;
+    }
+    index--;
+    column++;
+  }
+  return column;
+}