THRIFT-2471 Make cpp.ref annotation language agnostic
Client: compiler general
Patch: Dave Watson

This closes #113

commit 52b99af4ee1574253dcb77933d76a7ebb2d830df
 Author: Dave Watson <davejwatson@fb.com>
 Date: 2014-04-23T20:05:56Z

change cpp.ref to &

commit 3f9d31cc6140367529fd8f7b1b67056ec321786f
 Author: Dave Watson <davejwatson@fb.com>
 Date: 2014-04-23T21:50:29Z

Recursion depth limit

commit 61468e4534ce9e6a4f4f643bfd00542d13600d83
 Author: Dave Watson <davejwatson@fb.com>
 Date: 2014-04-25T19:59:18Z

shared_ptr for reference type
diff --git a/compiler/cpp/src/thriftl.ll b/compiler/cpp/src/thriftl.ll
index 685bb54..aee4406 100644
--- a/compiler/cpp/src/thriftl.ll
+++ b/compiler/cpp/src/thriftl.ll
@@ -183,6 +183,7 @@
   pwarning(0, "\"async\" is deprecated.  It is called \"oneway\" now.\n");
   return tok_oneway;
 }
+"&"                  { return tok_reference;            }
 
 
 "BEGIN"              { thrift_reserved_keyword(yytext); }