Add an AttributedStmt type to represent a statement with C++11 attributes
attached. Since we do not support any attributes which appertain to a statement
(yet), testing of this is necessarily quite minimal.

Patch by Alexander Kornienko!

llvm-svn: 154723
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index e5526ce..4bdded1 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -109,6 +109,11 @@
   VisitDecl(S->getDecl());
 }
 
+void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
+  VisitStmt(S);
+  // TODO: maybe visit attributes?
+}
+
 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
   VisitStmt(S);
   VisitDecl(S->getConditionVariable());