Initial support for mixins in dartc.

editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/model/DartElementImpl.java

Index: editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/model/DartElementImpl.java
diff --git a/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/model/DartElementImpl.java b/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/model/DartElementImpl.java
index e22a4b388d24b3788fa14aaaa1c36b2c13d67fdf..7b893f6b8c8ccd464f91e22d5f876e5680a47cf9 100644
--- a/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/model/DartElementImpl.java
+++ b/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/internal/model/DartElementImpl.java
@@ -65,7 +65,7 @@ public abstract class DartElementImpl extends PlatformObject implements DartElem
    * CRITICAL! Do not use colon (:) as a delimiter. It is used in the indexer as a delimiter between
    * the memento and other information. Using it as a delimiter here would break the indexer.
    * 
-   * Suggested characters for additional delimiters: '*', ')', '}', '?'
+   * Suggested characters for additional delimiters: ')', '}', '?'
    */
 
   /**
@@ -139,6 +139,11 @@ public abstract class DartElementImpl extends PlatformObject implements DartElem
   public static final char MEMENTO_DELIMITER_TYPE = '%';
 
   /**
+   * The character used before the name of a class type alias.
+   */
+  public static final char MEMENTO_DELIMITER_CLASS_TYPE_ALIAS = '*';
+
+  /**
    * The character used before the name of a variable.
    */
   public static final char MEMENTO_DELIMITER_VARIABLE = '[';
@@ -810,6 +815,7 @@ public abstract class DartElementImpl extends PlatformObject implements DartElem
     for (int i = 0; i < length; i++) {
       char character = mementoName.charAt(i);
       switch (character) {
+        case MEMENTO_DELIMITER_CLASS_TYPE_ALIAS:
         case MEMENTO_DELIMITER_COMPILATION_UNIT:
         case MEMENTO_DELIMITER_COUNT:
         case MEMENTO_DELIMITER_ESCAPE: