Check that interface constructors and default class constructors are compatible.

compiler/java/com/google/dart/compiler/SystemLibraryManager.java

Index: compiler/java/com/google/dart/compiler/SystemLibraryManager.java
diff --git a/compiler/java/com/google/dart/compiler/SystemLibraryManager.java b/compiler/java/com/google/dart/compiler/SystemLibraryManager.java
index d7d946d29c8ebee61acb762605ffbc98747f0bce..2bc54f236d215f1ee3d898daa72d7e4da943b357 100644
--- a/compiler/java/com/google/dart/compiler/SystemLibraryManager.java
+++ b/compiler/java/com/google/dart/compiler/SystemLibraryManager.java
@@ -110,13 +110,13 @@ public class SystemLibraryManager {
   }
 
   /**
-   * Expand a relative or short URI (e.g. "dart:dom") which is implementation independent
-   * to its full URI (e.g. "dart://dom/com/google/dart/domlib/dom.dart")
-   *
-   * @param uri the relative URI
-   * @return the expanded URI or the original URI if it could not be expanded
-   * @exception RuntimeException if the short URI is of the form "dart:<libname>"
-   *     but does not correspond to a system library
+   * Expand a relative or short URI (e.g. "dart:dom") which is implementation independent to its
+   * full URI (e.g. "dart://dom/com/google/dart/domlib/dom.dart")
+   * 
+   * @param uri

[zundel, 2011/12/05 21:26:45]

spurious n/l

[scheglov, 2011/12/06 14:20:39]

Done.

+   *          the relative URI
+   * @return the expanded URI, or the original URI if it could not be expanded, or <code>null</code>
+   *         if original URI can not be resolved.
    */
   public URI expandRelativeDartUri(URI uri) throws AssertionError {
     if (isDartUri(uri)) {