ST3: Support symbol indexing of enumeration values in C/C++

The new symbol indexer is a very useful feature and ST3 continues to get better.  However, the indexer does not seem to identify values within an enumeration.  For example:

typedef enum MyTestEnum
{
   enum1,
   enum2,
   enum3
} MyTestEnum;

enum1, enum2, and enum3 will not be discoverable (though MyTestEnum will) via the Ctrl-Shift-R (find symbol in project) option.

Also see:
http://www.sublimetext.com/forum/viewtopic.php?f=3&t=10886