Index: include/clang/AST/Expr.h
===================================================================
--- include/clang/AST/Expr.h
+++ include/clang/AST/Expr.h
@@ -2297,6 +2297,9 @@
     return child_range(&SubExprs[0],
                        &SubExprs[0]+NumArgs+getNumPreArgs()+PREARGS_START);
   }
+  const_child_range children() const {
+    return const_child_range(const_cast<CallExpr *>(this)->children());
+  }
 };
 
 /// Extra data stored in some MemberExpr objects.