Implementation of AST for @protocol expression.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43075 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/StmtPrinter.cpp b/AST/StmtPrinter.cpp
index a19ad37..90c5ef2 100644
--- a/AST/StmtPrinter.cpp
+++ b/AST/StmtPrinter.cpp
@@ -14,6 +14,7 @@
 
 #include "clang/AST/StmtVisitor.h"
 #include "clang/AST/Decl.h"
+#include "clang/AST/DeclObjc.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/PrettyPrinter.h"
 #include "clang/Basic/IdentifierTable.h"
@@ -627,6 +628,12 @@
   OS << ")";
 }
 
+void StmtPrinter::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) {
+  OS << "@protocol(";
+  OS << Node->getProtocol()->getName();
+  OS << ")";
+}
+
 void StmtPrinter::VisitObjCMessageExpr(ObjCMessageExpr *Mess) {
   OS << "[";
   Expr *receiver = Mess->getReceiver();