Change value of woven class in generatedClasses map

Store the woven class and not a generated (inner) class as value of the
woven class name. This has no effect in this commit, because the value
is not consulted at all, but will be used later on.

Relates to #279.

weaver/src/main/java/org/aspectj/weaver/tools/WeavingAdaptor.java

@@ -922,7 +922,7 @@ public class WeavingAdaptor implements IMessageContext {
 						}
 
 						generatedClasses.put(className, result);
-						generatedClasses.put(wovenClass.getClassName(), result);
+						generatedClasses.put(wovenClass.getClassName(), wovenClass);
 						generatedClassHandler.acceptClass(className, null, resultBytes);
 					}
 				}