Implement support for pack expansions whose pattern is a non-type
template argument (described by an expression, of course). For
example:

  template<int...> struct int_tuple { };

  template<int ...Values>
  struct square {
    typedef int_tuple<(Values*Values)...> type;
  };

It also lays the foundation for pack expansions in an initializer-list.
  

llvm-svn: 122751
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index 66c067b..820eb06 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -832,6 +832,10 @@
   VisitExpr(S);
 }
 
+void StmtProfiler::VisitPackExpansionExpr(PackExpansionExpr *S) {
+  VisitExpr(S);
+}
+
 void StmtProfiler::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
   VisitExpr(E);  
 }