No longer triggering a checked iterator assert on Windows when using std::copy while deserializing attributed statements with more than one attribute.

llvm-svn: 208702
diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index ce44fea..3501817 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -176,7 +176,7 @@
   (void)NumAttrs;
   assert(NumAttrs == S->NumAttrs);
   assert(NumAttrs == Attrs.size());
-  std::copy(Attrs.begin(), Attrs.end(), S->Attrs);
+  std::copy(Attrs.begin(), Attrs.end(), S->getAttrArrayPtr());
   S->SubStmt = Reader.ReadSubStmt();
   S->AttrLoc = ReadSourceLocation(Record, Idx);
 }