Correct for new rules regarding implicitly deleted special members. http://llvm.org/bugs/show_bug.cgi?id=10191

llvm-svn: 134248
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 5a33687da07cb8ffc68ef5065ed46bab5c4d6555
diff --git a/include/set b/include/set
index 717703f..9248fd7 100644
--- a/include/set
+++ b/include/set
@@ -408,6 +408,13 @@
             insert(__s.begin(), __s.end());
         }
 
+    _LIBCPP_INLINE_VISIBILITY
+    set& operator=(const set& __s)
+        {
+            __tree_ = __s.__tree_;
+            return *this;
+        }
+
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     _LIBCPP_INLINE_VISIBILITY
     set(set&& __s)
@@ -738,6 +745,13 @@
             insert(__s.begin(), __s.end());
         }
 
+    _LIBCPP_INLINE_VISIBILITY
+    multiset& operator=(const multiset& __s)
+        {
+            __tree_ = __s.__tree_;
+            return *this;
+        }
+
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     _LIBCPP_INLINE_VISIBILITY
     multiset(multiset&& __s)